THORLABS MCLS Series User manual

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MCLS Series Multi Channel
Fiber Coupled Laser Source
Operating Manual
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 2 www.thorlabs.com
Table of Contents
Part 1.Safety ............................................................................................................................................4
Part 2.Description ...................................................................................................................................5
Part 3.Setup.............................................................................................................................................7
3.1.Setting the AC Line Voltage and Installing Fuses.................................................................................7
3.2.Initial Set-up .............................................................................................................................................7
Part 4.Operation......................................................................................................................................8
4.1.Front and Back Panel Overview.............................................................................................................8
4.2.Turning On the Source ............................................................................................................................9
4.3.Viewing Channel Information.................................................................................................................9
4.4.Adjusting the Laser Output Power and Temperature..........................................................................9
4.5.Turning the Laser Off............................................................................................................................10
4.6.Modulating the Laser Output ...............................................................................................................11
Part 5.Making the Safety Interlock Connections.................................................................................12
Part 6.Remote Communications...........................................................................................................13
6.1.Installing the USB Drivers.....................................................................................................................13
6.2.Command Line Interface ......................................................................................................................13
6.3.Keywords (Commands and Queries)....................................................................................................14
Part 7.General Maintenance ................................................................................................................16
7.1.Cleaning ..................................................................................................................................................16
Part 8.Specifications .............................................................................................................................17
Part 9.Mechanical Drawing..................................................................................................................19
Part 10.Declaration of Conformity.........................................................................................................20
Part 11.Regulatory ..................................................................................................................................21
Part 12.Thorlabs Worldwide Contacts ...................................................................................................22
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 3 www.thorlabs.com
Table of Figures
Figure 1: Front and Rear Panels of Laser Source.................................................................................. 8
Figure 2: Remote Interlock Connector................................................................................................ 12
Figure 3: Mechanical Drawing............................................................................................................ 19
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 4 www.thorlabs.com
Part 1. Safety
All statements regarding safety of operation and technical data in this instruction manual will only apply
when the unit is operated correctly.
SHOCK WARNING
High voltage inside. To avoid electrical shock, before powering unit, make sure that the
protective conductor of the 3-conductor power cord is correctly connected to the protective
earth contact of the socket outlet. Improper grounding can cause electric shock resulting in
severe injury or even death. Do not operate without cover installed.
WARNING
This unit must not be operated in explosive environment.
WARNING
Avoid Exposure – Laser Radiation Emitted from apertures.
The unit is supplied with a 115 V parallel blade line cord for North American use only. For all other
applications use an IEC 320 compatible line cord fitted with a plug appropriate for your particular AC
wall socket.
Make sure that the line voltage rating marked on the rear panel agrees with your local supply and that
the appropriate fuses are installed. Changing of the mains fuse can be done by the user (see Setting the
AC Line Voltage and Installing Fuses). With the exception of the mains fuses, there are no user
serviceable parts in this product.
Do not operate in wet or damp conditions. Do not obstruct the air-ventilation slots in the housing!
This device can only be returned when packed into the complete original packaging, including all foam
packing inserts. If necessary, ask for a replacement package.
Mobile telephones, cellular phones or other radio transmitters should not to be used within the range of
three meters of this unit since the electromagnetic field intensity may exceed the maximum allowed
disturbance values according to EN50082-1.
LASER RADIATION
AVOID EXPOSURE TO THE BEAM
CLASS 3B LASER PRODUCT
405 – 1550 nm <50 mW
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 5 www.thorlabs.com
Part 2. Description
The Thorlabs 4-Channel Fiber Coupled Laser Sources provide easy coupling and simple control of laser
diode driven fiber optics. Each system is equipped with four fiber output light sources with wavelength
available from 406 to 1550 nm. The laser source is configured to accept a wide range of fiber pigtailed
laser diodes, and each system can be made with single mode fiber or PM fiber and any combination of 4
laser wavelengths. Below is a sample list of available wavelengths; please visit our website for a full list
of currently available options. Please contact Tech Support to configure your laser system.
Item # λ
Minimum
Power Laser Type Fiber
LPS-406-FC-LS 406 nm 3.0 mW Fabry-Perot S405
LPS-473-FC-LS 473 nm 4.0 mW Fabry-Perot S460
LPS-488-FC-LS 488 nm 4.5 mW Fabry-Perot S460
LPS-635-FC-LS 635 nm 2.5 mW Fabry-Perot SM600
LPS-658-FC-LS 658 nm 6.0 mW Fabry-Perot SM600
LPS-670-FC-LS 670 nm 1.5 mW Fabry-Perot SM600
LPS-785-FC-LS 785 nm 4.0 mW Fabry-Perot SM800-5.6-125
LPS-808-FC-LS 808 nm 4.5 mW Fabry-Perot SM800-5.6-125
LPS-850-FC-LS 850 nm 4.5 mW Fabry-Perot SM800-5.6-125
LPS-904-FC-LS 904 nm 4.5 mW Fabry-Perot SM800-5.6-125
LPS-980-FC-LS 980 nm 4.5 mW Fabry-Perot 980HP
LPS-1310-FC-LS 1310 nm 1.5 mW Fabry-Perot SMF28
LPS-1550-FC-LS 1550 nm 1.0 mW Fabry-Perot SMF28
LPS-1550DFB-FC-LS 1550 nm 1.5 mW DFB CF126-900
Each laser diode operates from an independent, high-precision, low-noise, constant-current source and
temperature control unit. An intuitive LCD interface allows the user to view and set the parameters for
each laser. The user can adjust the laser current and temperature control independently for each output.
The display indicates the channel number selected, the output wavelength of the source, the operating
power calculated from the laser diode monitor diode, and the actual temperature the laser is set to.
This device includes a microcontroller to fully control the laser’s optical power, temperature, and
monitor the system for fault conditions. The laser source includes a USB connection that allows remote
adjustment of power, temperature, and enabling. On the rear panel, analog inputs are available to
modulate the lasers with an external signal. This is added to the internal set points. To prevent damage,
the microcontroller will disable the output if the analog input plus the internal set point exceeds the laser
limits.
While most output sources fall within the class 3R laser rating, the system was fully designed to meet
3B laser class requirements. There is an interlock located on the rear panel that must be shorted in order
for any laser output to be enabled. This can easily be configured to be triggered by doors to disable the
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 6 www.thorlabs.com
lasers in unsafe conditions. The power switch is a keylock system to prevent accidental or unwanted use.
Each source has its own enable button allowing the user to choose the light source or sources they wish
to be active as well as a master enable which must also be set. Each channel includes a green LED
indicator to easily determine its current state. There is a 3 second delay before the lasers turns on, and
the user is warned by the LED rapidly blinking.
The MCLS includes a universal power supply allowing operation over 100-240 VAC without the need
for selecting the line voltage. The fuse access is conveniently located on the rear panel. This unit is
supplied with a US line cord as well as a standard European line cord.
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 7 www.thorlabs.com
Part 3. Setup
3.1. Setting the AC Line Voltage and Installing Fuses
Your MCLS Series Laser Source has been shipped from Thorlabs configured for 100 to 240 VAC
operation. There is no line switch adjustment to be made. However it may be necessary to replace an
open fuse. To do this you must perform the following procedure.
•Remove the AC power cord if it is connected to the unit.
•Locate the fuse tray directly below the AC power cord connection on the rear panel of the unit.
•Carefully use a flat blade screwdriver to open the fuse tray.
•Remove the existing fuse and install the appropriate 250 mA fuse. The replacement fuse must be
a 5 mm x 20 mm, 250 VAC Type T Fuses (IEC 60127-2/III, low breaking capacity, slow blow)
•Push the fuse tray back into place making sure that it snaps and seats correctly.
•Connect the appropriate power cord into the AC receptacle and plug the unit in.
3.2. Initial Set-up
•Locate the unit on a dry, level working surface.
•Make sure the POWER key switch on the front of the unit is in the OFF position (key
perpendicular to working surface).
•Plug the female end of the AC line cord provided into the AC Input Receptacle on the rear of the
unit. Plug the male end into a properly grounded AC socket.
•Install the interlock “key” into the interlock connector located on the rear panel. See page 12 for
details.
•Connect a Fiber Optic cable to the LASER APERTURE on the front panel of the unit and verify
that the dust caps are installed onto all unused fiber connections.
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 8 www.thorlabs.com
Part 4. Operation
4.1. Front and Back Panel Overview
Figure 1: Front and Rear Panels of Laser Source
Digit Display w/ Backlight
Displays channel, output
power, wavelength, and
temperature.
Laser Output Port
FC/PC fiber optic connector
Laser Output Cover
Cover should be installed
when fiber is removed Laser Enable Switch
Press to activate selected lasers.
Laser Emission Indicator
Indicates the channel is selected. It will blink for
3 seconds prior to the laser turning on.
Keylock Power Switch
Key only removes when of
f
Control Knob / Switch
Selects channel, adjusts current and temperature.
Remote Interlock Input
(See page 12 for details)
AC Power Cord Connector
USB Input Connector
Allows full operation through a PC interface
Modulation Input - 0 to 5 V Max
Accepts complex waveforms. See
section 4.6 for details
Cooling Vent - Do Not Block
The temperature control system moves air from
vent holes on the bottom. Periodically remove
dust buildup from vents for best operation.
Display Select Switch
Selects the channel desired to
be enabled.
Fuse Tray
See section 3.1 for replacement details
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4-Channel Fiber Coupled Laser Source
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4.2. Turning On the Source
•Turn the POWER key switch clockwise. The LCD display will scroll “Thorlabs MCLS” across
the screen, followed by the Ch1 information.
•Make sure the Interlock Input is short-circuited; see page 12 for detailed instructions.
•Select the desired output channels by pressing and releasing the ENABLE switch located above
the desired fiber output sources. An indicator located next to the switch will light up.
•Press and release the SYSTEM ENABLE switch to activate the lasers. There will be an
approximately 3 second delay before the lasers power up. During this time the SYSTEM
ENABLE indicator will light up and the selected channel indicator lights will blink rapidly.
•The default display mode is laser power (mW), however the thermo-electric cooler is activated
when the unit turns on.
4.3. Viewing Channel Information
The MCLS uses a single LCD display to access the information for each output channel. At any time
the display can be adjusted to view another channel by simply rotating the control knob located to
the left of the display. The display will scroll through the channels until the desired channel is
selected. The following information will be available:
•Top left – Indicates the channel selected. As an additional indicator, the channel enable indicator
selected will periodically blink on if disabled and off if enabled.
•Top Right – Indicates the wavelength of the selected channel. This is set at the factory when the
lasers are installed.
•Bottom Left – Indicates the power level of the laser diode. If it is disabled this will read
“0.00mW” and if the selected laser diode does not include a monitor diode this will read “No
PD”. When enabled the current power level determined from the monitor photodiode will
indicate the approximate power level of the output.
Note: The power shown on the display is the optical power at the laser aperture calibrated to the
monitor photodiode. The actual power at the end of your fiber optic cable may be less, depending on
the quality of the connection. All fiber optic cables installed should be cleaned first since dust and
dirt particles in the connector will effect coupling efficiency and possibly damage the fiber
connectors.
•Bottom Right – Indicates the actual temperature the laser is stabilized to and is displayed in °C.
The system defaults to a temperature of 25.00 °C until changed by the user. The temperature
control is always active and requires 5 to 10 minutes to properly stabilize.
4.4. Adjusting the Laser Output Power and Temperature
•Rotate the control knob to select the appropriate channel. Clockwise rotation increases the
channel while counterclockwise decreases the channel. The selected channel is indicated on the
display as well as with a periodic blink of the channel indicator light.
Note: The adjustment knob utilizes an intelligent speed control. Adjusting the knob slowly will
increment values at the maximum resolution while adjusting fast will make larger movements. This
allows both a fine and course control.
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4-Channel Fiber Coupled Laser Source
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•When the appropriate channel is selected, press the control knob in. The bottom left location will
start blinking and will change to current. Ex: xx.xxmA. Adjust the control knob until the desired
current is achieved. The power will adjust real-time. The first time default setting will be power
full off. Adjusting the knob clockwise will immediately set the power to the laser threshold and
then incrementally to the max operating current. Adjusting the knob counter clockwise will
incrementally decrease the signal until it hits the threshold, and then immediately to laser off. On
power down, the current setting will be remembered.
Note that there is a timeout on the display, after which the display will revert back to the viewing
mode. This is to prevent accidental adjustment of the power.
•Press the knob again to switch to temperature adjustment. The set point temperature will be
displayed and will be blinking; for example, 25.00 °C. Adjust the control knob to increase or
decrease the temperature set point. The temperature default is 25.00 °C but can be adjusted over
a range of 20.00 to 30.00 °C with a resolution of 0.01 °C.
Note, as above there is a timeout where the display will revert to the viewing display and lock out
adjustment to the temperature.
•Pressing the control knob again will exit the adjustment mode and revert back to the viewing
mode, locking in the selected parameters. This can also be achieved by allowing the display to
time out at any point in the process. Depending on the magnitude of the change in temperature
set point, it will take anywhere from a few seconds to a few minutes for the system to settle into
the new operating temperature.
4.5. Turning the Laser Off
•Standby Mode – By adjusting the control knob fully counter clockwise the power will adjust
down to the threshold current and then to off, or standby mode. The threshold current is the point
at which the internal laser diode starts lasing. Below this it operates in a LED mode. For
convenience the system is set up to adjust from the threshold to the max current. In addition,
when adjusting below the threshold, the current will be set to almost 0 mA. Since the system
utilizes a constant current control, there will always be a minimum current to maintain the
current control loop. The output emission is typically very low, or nonexistent. The laser is still
enabled and operating at the minimum possible current. This can be useful while using the
external modulation. The full 5 V can be applied without compensating for the internal set point.
However, the external signal will need to provide a DC offset to bias the laser above the
threshold current for best results. Input signals will see clipping on there lower edges below
threshold. Pulse response time may also be effected since there is typically a time delay during
the LED to laser emission change.
•Disable/Enable Mode - The Laser output should be turned off by pressing and releasing the
SYSTEM ENABLE switch. Outputs can be individually turned off at any time by pressing their
ENABLE button. The laser temperature will be maintained even when the laser is disabled.
•Power Down - When completely powering down an enabled unit, first press and release the
SYSTEM ENABLE switch and then turn the POWER key switch counterclockwise, which will
turn OFF the entire unit. Anytime the unit is turned OFF and then turned back ON, the Laser will
be disabled until the SYSTEM ENABLE switch is pressed and the desired channels are enabled.
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 11 www.thorlabs.com
4.6. Modulating the Laser Output
The MOD IN input can be used to modulate the laser output, or set the laser output remotely using a
5 V power source. The 5 V maximum inputs correspond to the maximum calibrated power of each
channel, which operate using a constant current drive technique. The resulting actual output power is
dependent on the set current and operating temperature. In addition, in order to eliminate a dead zone
in the power control knob, the output of the unit is offset to the threshold current of the coupled laser
diode. Adjusting the knob below threshold will immediately set the current to almost 0 mA, or
Standby mode as described in section 4.5. Therefore, there are two modes of modulation available.
First setting the control to “Standby” allows the analog modulation to utilize the full 0 to 5 V input
range. The drawback is that a minimum voltage will be required to operate above the threshold
current but allows more flexibility by the user. The second mode is to adjusting the control knob so
that the laser is at threshold or above. The analog modulation voltage will be limited to less than 5 V,
but a DC offset will not be required. This should be kept in mind when using the modulation input
since it will limit the actual input voltage range.
•Connect a signal generator or 0 to 5 V power source to the unit using a BNC type connector.
•Set the PWR ADJ knot on the front panel to its full counter clockwise setting for standby mode,
or increase slightly to the threshold current mode.
•Press the ENABLE switch to turn on the laser, wait for the safety delay to time out.
•For Threshold Offset - Apply the appropriate signal to the MOD IN input. If too much voltage
is applied internal current limiting will prevent damage to the laser diode and the laser diodes
will be immediately disabled. If an internal threshold is set the acceptable drive voltage range
will be less than 5V. To calibrate your input apply a DC voltage to the MOD IN and slowly
increase until the system disables. This will be the max voltage allowable for that channel.
•For Standby Operation – Apply and appropriate signal between 0 and 5V to the MOD IN for
the desired channel. Determine the DC offset by increasing the voltage slowly until a large
power jump is seen on the output. An easier method it to apply a 1Vpp sinusoid and adjust the
DC offset until the sinusoid appears and then the bottom edge is no longer clipping. This method
requires applying the laser output to a photodetector and monitoring with an oscilloscope. Next
maximize the amplitude so that the peak is 5V or less as desired.
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4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 12 www.thorlabs.com
Part 5. Making the Safety Interlock Connections
The MCLS series laser sources are equipped with a remote interlock connector located on the rear panel,
see Figure 2. All units have this feature regardless of their FDA and IEC classifications. In order to
enable the laser source, a short circuit must be applied across the terminals of the Remote Interlock
connector. In practice this connection is made available to allow the user to connect a remote actuated
switch to the connector (i.e. an open door indicator). The switch (which must be normally open) has to
be closed in order for the unit to be enabled. Once the switch is in an open state the laser source will
automatically shutdown. If the switch returns to a closed condition the laser source must be re-enabled at
the unit by pressing the SYSTEM ENABLE switch.
All units shipped from Thorlabs are configured with a shorting device installed in the Interlock
connector. If you are not going to use this feature then you can leave the shorting device installed and
the unit will operate normally as described in the procedures above.
If you wish to make use of the Interlock feature you will need to acquire the appropriate connector mate
and wire it to your remote interlock switch. Next, remove the shorting device by pulling it out with a
pair of needle nose pliers and install the connector into the interlock input.
The interlock input only accepts a 2.5 mm mono phono jack. This connector is readily available at most
electronics stores.
The electrical specifications for the interlock input are shown in the following table.
Specification Value
Type of Mating Connector 2.5 mm Mono Phono Jack
Open Circuit Voltage +5 VDC with Respect to Chassis Ground
Short Circuit Current ~8 mA DC
Connector Polarity Tip is +5 V, Barrel is Ground
Interlock Switch Requirements Must be N.O. Dry Contacts
Under no circumstances should any external
voltages be applied to the Interlock input
Figure 2: Remote Interlock Connector
Ground
+5 Volts
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4-Channel Fiber Coupled Laser Source
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Part 6. Remote Communications
6.1. Installing the USB Drivers
Prior to running the command line interface, the USB drivers must be installed. The MCLS must not be
connected to the PC while installing the drivers. Insert the CD that was supplied with your unit into your
PC. From the dialog box that is displayed, select the Install Drivers button. If the dialog box is not
displayed, browse to the CD and run CD_Started.exe. Follow the onscreen prompts to install the driver.
After the driver is installed, attach the MCLS to the PC and power it on. Your PC will then detect the
new hardware and will prompt you when the installation is complete.
6.2. Command Line Interface
Once the USB drivers have been installed, the unit connected to the PC, and the power turned on,
configure the terminal emulator as follows:
•Baud Rate = 115.2K Bits Per Second
•Data Bits = 8
•Parity = None
•Stop Bits = 1
•Flow Control = None
If the connection is correct you will see the following after pressing the “Enter” key.
Command error CMD_NOT_DEFINED
Followed immediately by the prompt:
>
The basic structure of the interface is a keyword followed by either an equals sign “=” or a question
mark “?”. The “=” or “?” will determine if the string is a command or a query. All strings (commands
and queries) must be terminated by a carriage return (CR) or pressing the ENTER key on the computer.
The command structure is as follows:
Keyword = argument (CR)
Where “keyword” defines the function and “argument” is a numerical value followed by a carriage
return (CR). See listing below.
The query structure is a follows:
Keyword? (CR)
The “keyword” defines the function and the question mark (?) indicates a query. The string is terminated
with a carriage return (CR). See listing below.
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4-Channel Fiber Coupled Laser Source
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There are a few exceptions to this which are noted below, also noted are unique shortcut keys.
The prompt symbol “>” will appear on power up and after a command is accepted by the system
indicating it is ready to receive another command line.
6.3. Keywords (Commands and Queries)
The following list shows all of the available commands and queries, and summarizes their functions:
Command Syntax* Description
Get Commands ? List the available commands
Get ID id? Returns the model number and firmware version.
Get Channel channel? Returns the active channel.
Set Channel channel=nSelect the channel specified by n.
Get Target Temp target? Returns the set temperature for the active channel (C).
Set Target Temp target=nSets the set temperature (n) for the active channel (C).
Get Temp temp? Returns the actual temperature for the active channel (C).
Get Current current? Returns the current for the active channel (mA).
Set Current current=nSets the current (n) for the active channel (mA).
Get Power power? Returns the power for the active channel (mW).
Get Enable enable? Returns the current state of the active channels Enable button.
Set Enable enable=nSets the state of the active channels Enable button (0: disabled, 1: enabled).
Get System system? Returns the current state of the System Enable button.
Set System system=nSets the state of the System Enable button (0: disabled, 1: enabled).
Get Specs specs? Returns the Laser Diode Specifications for the active channel.
Get Step step? Returns the increment used to adjust the temperature and current when the
arrow keys are pressed.
Set Step step=nSets the increment (n) used to adjust the temperature and current when the
arrow keys are pressed.
Save save Saves the current settings.
Get Status statword Returns a status word that indicates the state of all enable buttons.
* All commands and queries are in lower case letters.
If the keyword, format, or argument is incorrect or out of range, the unit will return an error string. The
function is determined by the value set with the mode command in the above table.
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4-Channel Fiber Coupled Laser Source
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In addition to the above commands there is also special functionality added to the arrow keys of the
computer’s keyboard.
•Up Arrow Key – Increments the current for the active channel by n.
•Down Arrow Key – Decrements the current for the active channel by n.
•Right Arrow Key – Increments the temperature for the active channel by n.
•Left Arrow Key – Decrements the Temperature for the active channel by n.
Where n is set by the command “Set Step”.
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4-Channel Fiber Coupled Laser Source
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Part 7. General Maintenance
Aside from the AC Input fuse there are no user serviceable parts in this product. If you suspect
something has failed on the unit, please contact Thorlabs for advice on returning the unit for evaluation.
Always clean fiber optic connectors that will be inserted into the system and install the dust cap
whenever the source is not being used. Allowing dust and dirt into the fiber ports will degrade coupling
efficiency and possibly damage the fiber patch cords, both inside and outside. If you suspect this to be
true, Thorlabs can clean and inspect the fiber connections, and repair if necessary.
7.1. Cleaning
The unit can be cleaned using a soft, slightly damp cloth. Avoid using any solvents on or near the unit.
Keep the vent holes located on the bottom of the unit and on the rear panel free of dust buildup.
Restricted airflow will cause the temperature controls to operate inefficiently and in extreme cases, lose
temperature control.
Always clean the ferrule end of your fiber patch cable prior to inserting it into the output FC Adapter.
Allowing dust and dirt into the fiber ports will degrade coupling efficiency and possibly damage the
fiber patch cords, both inside and outside. If you suspect this to be true, Thorlabs can clean and inspect
the fiber connections, and repair if necessary.
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4-Channel Fiber Coupled Laser Source
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Part 8. Specifications
General Specifications
AC Input 100-240 VAC, 50 - 60 Hz
Input Power 35 VA Max
Fuse Ratings 250 mA
Fuse Type IEC60127-2/III (250V, Slow Blow Type ‘T’)
Fuse Size 5 mm x 20 mm
Dimensions (W x H x D) 12.6” x 2.5” x 10.6”
(320 mm x 64 mm x 269 mm)
Weight 8.5 lbs
Operating Temperature 15 to 35 °C
Storage Temperature 0 to 50 °C
Connections and Controls
Interface Control Optical Encoder with Pushbutton
Enable and Laser Select Keypad Switch Enable with LED indication
Power On Key Switch
Fiber Ports FC/PC
Display LCD, 16x2 Alphanumeric Characters
Input Power Connection IEC Connector
Modulation Input Connector BNC (Referenced to Chassis)
Interlock 2.5 mm Mono Phono Jack (see Part 5,)
Communications
Communications Port USB 2.0
Com Connection USB Type B connector
Required Cable 2 m USB Type A to Type B Cable
(Replacement Part Number USB-A-79)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 18 www.thorlabs.com
Performance Specifications
Display Power Accuracy ±10%
Current Set Point Resolution 0.01 mA
Temperature Adjust Range 20.00 to 30.00 °C
Temp Set Point Resolution ±0.01 °C
Noise <0.5% Typical (Source Dependent)
Rise Time / Fall Time <5 μsec
Modulation Input 0 - 5 V = 0 - Full Power
Modulation Bandwidth 80 kHz Full Depth of Modulation
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

4-Channel Fiber Coupled Laser Source
18659-D02 Rev B, September 21, 2011 Page 19 www.thorlabs.com
Part 9. Mechanical Drawing
10.6"
(269 mm)
11.3"
(288 mm)
12.6"
(320 mm)
2.5"
(64 mm)
Figure 3: Mechanical Drawing
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com