Santec TSL-570 User manual

Tunable Semiconductor Laser
TSL-570
Type H (High power option)
Operation Manual

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Notes to Users
1) Copyright 2022, Santec Corporation. All rights reserved. No part of this
Operation Manual may be reproduced or transmitted in any form or by any
means, electronic or mechanical, for any purpose, without the prior written
permission of Santec.
2) Information in this Operation Manual is subject to change without notice.
3) Information of this Operation Manual is prepared with careful examination,
however, in the event of any mistake, please contact us.
Notes in Bringing This Product Out of Japan
1) When this product is brought out of Japan, some laws or regulations of a
destination country may prohibit this product from being used there. In such
countries, the use of this product may lead to punishment. Please note, that in
such cases Santec Corporation shall not be held responsible in anyway.
2) When this product is exported (or brought out of Japan), if this product is
applicable to a strategic material specified in “Foreign Exchange and Foreign
Trade Control Law”, then required is an export permit of the Japanese
Government under the law.
Trademarks
is a trademark of Santec Corporation.
TSL-570 is a trademark of Santec Corporation.

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Introduction
Thank you very much for your having purchased our product, Tunable
Semiconductor Laser TSL Series. This Operation Manual contains information
necessary for the operation of TSL-570 Type H, and it is intended for those with
sufficient knowledge enough to of laser danger and its safe control. Before
operating TSL-570, you should first read thoroughly through this Operation
Manual and become familiar to its contents. After reading this Operation Manual,
keep it at your fingertip for easy reference at any time.
NOTE
The packing materials and box of this product are needed for long-term
storage or transportation; keep them in a safe place after unpacking the
product.

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How to Read the Manual
Before operating TSL-570, please read carefully this Operation Manual. This
Operation Manual consists of 11 Chapters:
Chapters 1 to 4 illustrate the outline of this product, safety precautions, and
installation of the product.
SANTEC recommends that Chapter 1 to 4 should be read carefully before
proceeding to the following chapters.
Chapters 5 to 7 describe how to operate the product.
Chapter 8 to 11 describes to maintain the products’ performances.
NOTE
Before using this product, please carefully read this Operation Manual.

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Explanation of Terms
The meanings of the following terms used in this Operation Manual are defined
as below:
(1) Meaning
DANGER
This indicates pressing DANGER, and if
it is not avoided, personnel death or
serious injury may result; therefore, it
is the most emphasized special
information.
WARNING
This indicates potential danger, and if it
is not avoided, personnel death or
serious injury may result; therefore, it
is special information.
CAUTION
This indicates potential danger, and if it
is not avoided, mild or slight injury may
result; therefore, it is special
information. It also indicates potential
danger leading to only physical
damage.
NOTE
NOTE
This section only indicates
supplementary explanations of the text
and thus other than DANGER,
WARNING, and CAUTION.
(2) Importance of Information
From the above meanings, the priority of the terms here are as shown below:
DANGER > WARNING > CAUTION > NOTE

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Contents
Introduction
How to Read the Manual
Instrument Markings
Explanation of Terms
1. Safety Notes ...................................9
1.1. Intended use ............................................................... 9
1.2. Safety Markings............................................................ 9
1.3. Laser Class .................................................................10
2. Product Composition .....................11
3. Panel Descriptions.........................12
3.1. Front Panel.................................................................12
3.2. Rear Panel..................................................................12
3.3. Side Panel ..................................................................13
4. Installation ...................................14
4.1. Operating Environments ...............................................14
4.2. Power Supply..............................................................14
4.3. Interlock ....................................................................15
5. Basic Operation.............................17
5.1. Turning on the Unit......................................................17
5.2. LCD display and Operation ............................................17
5.2.1. Screen Configuration....................................................17
5.2.2. Numeric Keypad Input Screen Configuration....................18
5.2.3. Menu screen transition .................................................19
5.3. Laser Output...............................................................20
5.4. Setting the Wavelength ................................................21
5.5. Setting the Output Power..............................................22

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5.6. Setting the Wavelength Sweep ......................................25
5.6.1. Continuous sweep setting .............................................28
5.6.2. Trigger setting for continuous sweep ..............................30
5.6.3. Step sweep setting ......................................................31
5.6.4. Trigger setting for step sweep........................................33
5.6.5. Detailed trigger settings................................................33
5.7. Executing the Wavelength Sweep...................................34
5.8. Turning off the Unit .....................................................35
6. Detailed Operation ........................37
6.1. Fine-tuning.................................................................37
6.2. Coherence Control .......................................................38
6.3. External Modulation .....................................................39
6.4. Power Monitor Signal Output .........................................41
6.5. Trigger Setting ............................................................42
6.6. Displaying the Product Information.................................44
6.7. System Alert...............................................................44
6.8. System Settings ..........................................................46
6.9. Save/ Load Setting parameters......................................47
6.10. Safety Lock.................................................................48
7. Operation by Communication ........51
7.1. GPIB..........................................................................51
7.1.1. Connection .................................................................51
7.1.2. GPIB Function.............................................................51
7.1.3. Setting the Address, Delimiter and Command set .............52
7.2. USB...........................................................................54
7.2.1. Connection .................................................................54
7.2.2. Communication Conditions and System Requirements.......54
7.2.3. Installing a USB Driver Software ....................................54
7.3. LAN...........................................................................56
7.3.1. Connection .................................................................56
7.3.2. Communication Conditions and System Requirements.......57
7.3.3. Settings .....................................................................57

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7.4. Command Reference....................................................58
7.4.1. Common Command List ...............................................58
7.4.2. TSL-570 Status system ................................................59
7.4.3. IEEE-488.2 common commands - Detailed description......61
7.4.4. TSL-570 Specific command overview..............................64
7.4.5. Command error......................................................... 104
7.4.6. System alert ............................................................. 105
8. Specifications.............................. 106
8.1. Specifications............................................................106
8.2. Regulations conformity...............................................107
9. Maintenance ...............................108
9.1 Daily Maintenance .....................................................108
9.2 Cleaning the Optical Power Sensor ...............................108
9.3 Replacing Fuses.........................................................108
9.4 Inspection and Calibration...........................................109
9.5. Self-Inspection..........................................................109
9.6. Firmware update .......................................................110
9.7. Long-term Storage ....................................................112
10. Re-packing and shipping ............. 114
10.1. Re-packing ...............................................................114
10.2. Packing Instruction ....................................................114
10.3. Shipping...................................................................115
11. Troubleshooting..........................116

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1. Safety Notes
1.1. Intended use
This product is designed to measure the optical characteristics.
Do not use this product for anything other than as an optical measuring
instrument. If this product is used in a manner not specified in this manual, the
protection provided by this product may be impaired.
1.2. Safety Markings
This product is marked with this warning symbol when it is necessary
for the user to refer to the instructions in the manual.
This warning symbol is marked on products which have a laser output.

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1.3. Laser Class
This product is classified class 3B laser product according to IEC 60825-1 (2014).
Laser Type:
External Cavity Diode Laser
Laser Class:
3B IEC60825-1(2014)
Output Power:
< 500mW
Laser Diameter:
10μm
Numerical aperture:
0.1
Wavelength:
1200-1700nm
Laser Safety Labels
This product radiates class 3B invisible laser. Be careful not to let the laser beam
directly or reflect off the mirror surface and get into your eyes. It is extremely
dangerous because it may cause acute visual impairment or skin injury. This product
should be handled by an expert who has received operational training. Please refer to
EN-60825-1 for precautions in handling.
Be sure to stop the laser output before performing any work on the fiber, such
as attaching a connector or cleaning the end face of the fiber. Never look into
the output surface while the laser is operating. Wear laser safety glasses when
using this product. Performing operations other than those specified in this
manual may result in hazardous laser radiation exposure. Never disassemble
this product. Please contact our sales representative for repair of this product.

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2. Product Composition
This product is composed of the TSL-570 body and accessories. Check to make
sure that all the following items are included.
TSL-570 body x1
Power code x1
Interlock terminator x1
Operation Manual & Software x1
Inspection report x1
Check to make sure that the product body and the accessories have no
scratches or stains. If any item is found to have scratches or stains, please
contact us.

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3. Panel Descriptions
3.1. Front Panel
Figure 3-1. Front Panel
3.2. Rear Panel
3.3.
Figure 3-2. Rear Panel
Optical Output Activation key
Display and Touch screen
USB (Host)
Power On/Off
And ED indicator
Optical Output
Connector (inside)
Power inlet and Fuse Box
GND
Analog Input
External Interlock
Power monitor
GPIB connector
Exhaust Fan
LAN connector
USB (Device)
Trigger Input
Interlock
Trigger Output
putterlock

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3.3. Side Panel
Figure 3-3. Side Panel
Air intakes
Legs
Rear feet

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4. Installation
4.1. Operating Environments
Pay attention to the following guidelines for safe, trouble-free operation.
This product is a high-precision device and be designed to be used indoors
(Pollution Degree 2).
· Do not place over a height of 2,000 meter.
· Do not place in direct sunlight.
· Do not place under high temperature and high humidity.
· Do not place in an environment with dust, dirt, salt, or corrosive gas.
· Do not place in an area subject to large vibrations.
· Do not place in an area subject to noise by electric field, magnetic field, etc.
· Do not place in an area where the unit is subject to falling objects landing on
it.
· Do not place with possible exposure to water.
Be sure to install the TSL-570 in a level place (less than 5 degree). It is
recommended to install this product on a vibration-proof base. The unit may
not operate correctly if the device is set in an inclined position.
The mainframe of the TSL-570 weighs about 7kg. Please ensure that the table
or shelf upon which it is installed has sufficient strength. Clearance of 5 cm at
the rear and the side of the unit should be allowed for proper ventilation. And
the air intakes are located at the bottom and the side of the device. Please do
not remove the rubber legs, in order to secure airflow.
4.2. Power Supply
This product uses a 3-line power cord and plug with a protective ground line.
Power cord may be attached and detached. Connect it to the power source
socket at the rear panel. Use the power cord supplied with the product. Do not
use the inappropriate power code. This product complies with overvoltage
category Ⅱand can operate between 100 to 120Volts or 200 to 240 Volts, and
50 to 60Hz AC Line. Temporary over voltage (TOV) is 1,500 Volts. Use two
surge resistant type fuses. T3.15AL/250V (100–120V/ 200-240V) (Refer to "9-
3. Replacing Fuses").

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This product is grounded by the ground line in the supplied power cable. This
product must be properly grounded to avoid electrical shock and other dangers.
Please make sure that this product is properly grounded to avoid electrical shock.
In addition, please place this product in a location that allows the user to easily
unplug the power cable from the power socket on the rear panel, in case of any
device malfunction.
4.3. Interlock
This product is equipped with a terminal for connecting an external interlock
circuit.
A terminator is connected to the interlock terminal at the time of factory
shipment (or included as an accessory). If an external interlock is used, remove
the terminator and connect a circuit to the interlock terminal. The Laser is
output only when there is a short circuit. The Laser turns off when the circuit
is open. If you want the Laser to light up again, short the circuit, and then
perform Laser output operation (Refer to “5-2. Laser output”).
If you don’t use your own interlock circuit, please connect the terminator to the
terminal (BNC) indicated as “ ”. If you use your own interlock circuit, please
connect the interlock circuit to the terminal indicated “INTERLOCK”. Keep the
removed terminator so it does not become lost.

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NOTE
Make sure to use this product only with the terminator connected when an
external interlock is not used. The Laser is not output unless the terminator is
connected. When " " is indicated in the display of the front panel, the
interlock circuit is in open state.

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5. Basic Operation
5.1. Turning on the Unit
1. Press the Power ON/OFF key at the lower left of the front panel.
2. The LED of the power ON/OFF key will turn green, and initialization will last
for about 60 seconds.
3. Wavelength and power values are displayed on the main display.
5.2. LCD display and Operation
5.2.1. Screen Configuration
The Main screen is the original screen of this device. When the power is
turned on, it is possible to first transition and read the status of the device.
You can also transition to all function pages from the page transition button.
For details, refer to "5.3.3 Menu Transition".
Page transition button
Wavelength display area
Power display area
Unit display area
Status display area

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5.2.2. Numeric Keypad Input Screen Configuration
1. Select the blinking cursor in the digit you want to enter.
The blinking cursor can be moved with the unit shift key.
Alternatively, you can select by directly touching the number.
2. Enter the value with the numeric keypad. All digits must be entered for
the integer part. When changing the value one by one, the operation of
the unit shift key is also available.
After inputting the value, press the ENTER key to set the value. When
inputting out of the specification range, the value in the enterable range
will turn yellow.
3. After setting, return to the Main screen.
NOTE
Cancel key
Setting parameter
Inputable range
parameter
Blinking cursor
Unit shift
This product can be operated the screen by connecting a mouse to the USB
(Host) port. Then, the scroll wheel can allow the user to change the input
value.

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5.2.3. Menu screen transition
The screen transition diagram of this device is shown. The "Main", "Sweep",
and "Trigger" settings that are mainly used can be easily switched back and
forth, and detailed settings can be changed from the "Other" screen.
Please refer to the configuration diagram below.
Main
Trigger
Other
Sweep
Communication
Alerts
Maintenance
Information
Save/Load
System
Firmware
Upgrade

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5.3. Laser Output
Make sure that the optical fiber is connected correctly to the optical output
connector before performing LD output.
1. Press the Optical Output Activation key.
2. After turning on the power, the release screen for safety lock (password
input screen) will be displayed by performing the first operation of the
ACTIVE key. Password cancellation will continue until the next power cycle.
3. When the safety lock is released, the laser is output from the optical output
connector. The “ACTIVE” key lights green while the laser is being output.
While preparing to turn on laser, the “ACTIVE” key blinks.
4. Press the Optical Output Activation key again to turn off optical output.
Laser output is interrupted and the LED turns off.