Photonetics TUNICS-OM Series User manual
-~
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TUNICS-OM
MODULAR
TUNABLE
LASER
DIODE
SOURCE
USER
MANUAL
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CONTENTS
SAFETY CONSIDERATIONS
....................................................................................................
3
INTRODUCTION
......................................................................................................................
7
I
.
DESCRIPTION OF THE INSTRUMENT
............................................................................
8
....................................................................................
I
.
1
.
DESCRIPTION
OF
THE FRONT PANEL
8
.....................................................................................
1.2. DESCRIPTION
OF
THE REAR PANEL 10
I1
.
SETTING UP THE INSTRUMENT
...................................................................................
11
.................................................................................
11.1
.
INSTRUCTION TO CARRY THE UNIT
11
................................................................................
11.2. CONNECTION
OF
THE INSTRUMENT
11
I11
.
AUXILIARY INPUTS AND OUTPUTS
...............................................................................
13
....................................................................................................
111.1
.
BEAM MODULATION
13
...............................................................................................
11
1.2. MONITOR CONNECTORS
13
APPENDIX A: CHARACTERISTICS
........................................................................................
15
APPENDIX B: MAINTENANCE
...............................................................................................
17
APPENDIX C: REPLACEABLE PARTS
...................................................................................
19
APPENDIX D: REMOTE INTERLOCK
.....................................................................................
20
CONTACTING PHOTONETICS
...............................................................................................
21
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SAFETY CONSIDERATIONS
Respect of the following safety precautions is vital to your health and instrument safety.
SYMBOLS
AND
TERMS:
The following symbols and terms may appear in this manual or on the equipment.
-Terms in this manual:
A
CAUTION
Caution statements identify conditions or practices that could result in damage
to this product or other property.
-
-Terms on the product:
DANGER
indicates an injury hazard immediately accessible as you read the marking.
WARNING
indicates an injury hazard not immediately accessible as you read the marking
CAUTION
indicates a hazard to property, including the product itself.
-Svmbols on the product:
CAU'I ION (Refer to Manual)
0
Protective Ground (Earth) CAIJTION, Risk of electric shock
Laser product (This warning label is located on the front panel
of
each module)
DANGER IABFI
(located on the s~dcot the TUNICS-OM module and
on
the rear panel)
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LASER SAFETY:
1
Laser type
I
External cavity laser diode
I
I
Single mode optical fiber
I
I
Output divergence (half angle
@
l/e-)
10.09
rad
I
LASER CLASS:
NOTE:
As the TUNICS-OM is a Class IIIb product
(21
CFR Subchapter
J),
it has a
Remote Interlock Connector where a remote ONIOFF switch can be connected.
The principle of this function is that if the interlock circuit is open, the output is set
to the off state. The output may be turned on again by simply pressing the offlon
switch, after corrective action is taken (if needed) (Refer to the Appendix
D).
Standard
IEC
60825-1
2
1
CFR
Subchapter
J
ABSOLUTE MAXIMUM RATINGS:
Laser Class
Class
3A
Class lllb
I
I
Power (P6 option)
15
mW
I
15
mW
I
TUNICS model
Wavelength range
(nm)
Power (standard)
TUNICS-OM 1540
1500-1570
10
mW
Power (PI0 option)
TUNICS-OM 1560
1530-1600
10
mW
20
mW
20
mW
I
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A
WARNING:
The use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
WARNING:
Under no circumstances look into the end of an optical cable
attached to the optical output when the device is operational. The
laser radiation is not visible to the human eye, but it can seriously
damage your eyesight. Keep the beam cap on after use to avoid
laser radiation.
C--
WARNING:
Disable the laser output before connecting, or disconnecting, a
fiber optic cable on the instrument.
VENTILATION
OF THE
UNIT:
CAUTION:
You must leave enough space under and behind the unit. The
apertures (under the unit) and the fan (behind the unit) are used
for the inside ventilation. Actually the air enter through these
apertures and goes out through the fan.
This product is designed so that the feet should leave
enough room under the unit to enable the ventilation.
As a
result if you want to integrate the unit in a rack you need to keep
the feet or leave at least
15rnrn
(0.6
inches) between the two
units.
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POWER SOURCE:
WARNING:
-
TUNICS is intended to operate from a power source that does
not apply more than
265
volts RMS between the supply
conductors or between either supply conductor and ground.
-
TUNICS has a chassis connected to earth via the power supply
cable.
A
protective ground connection by way of the grounding
conductor in the power cord is essential for safe operation.
-
To avoid the possibility of injury, insert the power cable only
into a socket outlet provided with a protective earth contact.
Before switching on the instrument, check that the electrical
installation fulfills the local safety requirements.
-
Use only the power cord and connector specified for your
product. Thispower cord should be in good condition.
WARNING: DO NOT OPERATEWITHOUT COVERS:
To avoid personal
injury, do not operate this product without covers or panels
installed.
WARNING: USE THE PROPER FUSE:
To avoid fire hazard, use
fuse or correct type, voltage rating and current rating as
in the Appendix B.
WARNING: ENVIRONMENTAL CONDITIONS:
-
TUNICS has not been designed for outdoor use.
only the
specified
-
To avoid the possibility of injury, do not expose the instrument
to rain or excessive moisture.
-
Do not operate the instrument in the presence of flammable
gases or fumes.
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INTRODUCTION
TUNICS-OM
is a compact and modular manually-tunable source
for
use in multi-
wavelength test systems.
Up
to
8
TUNICS-OM
modules can be plugged into a single
19"
instrument.
TUNING CHARACTERISTICS:
Wavelength range
P
=
0 dBm(')
P
=
6 d~m(~)
P
=
10 d~m(~)
Tuning repeatability (typical)
Wavelength setting resolution
Tuning speed
Wavelength stability (long term)(4)
(5)
Wavelength setting (multi-turn knob)
TUNICS-OM 1540
LASER OUTPUT CHARACTERISTICS:
TUNICS-OM 1560
1520-1600nm
1540-1590nm
1540-1580nm
10 s (70 nm)
16 nmlturn
Power stability (P
=
0 dBm, 1 hour)
I
fO.O1 dB
I
('1
+3 dBm peak output power
(*)
P6 option (High output power)
(3)
PI0 option (High output power)
(4)
Measured with 0 dBm output power
(5)
Over 1 hour at constant temperature
Side mode suppression ratio
RIN
Signal to source spontaneous emission ratio(6)
(6)
ASE-noise-free option (90 dB signal to source spontaneous-emission ratio measured in
a
0.1 nm
bandwidth at
5
nm from the signal. Not compatible with P10 option)
>45 dB
>
145 dB1Hz
>90 dB
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I.
DESCRIPTION
OF
THE INSTRUMENT
1.1.
Description of the front panel
Front
panel
ofu
8-n1odzde
TUNICS-OM
ruck
On the TUNICS-OM mainframe:
Enable
key
Key used to enable or disable every modules plugged in
the TUNICS mainframe (enlightened when the modules
are enabled).
ON/OFF key
Enlightened when the mainframe
is
powered.
On the TUNICS-OM module:
Enable
key
Key used to enable or disable the module plugged in the
mainframe (enlightened when the module is enabled).
POWER knob
The optical power is controlled by a single turn knob.
The TUNICS-OM works in an automatic-power control
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mode, meaning that the current is adjusted to deliver the
required power.
NOTE:
It is possible in the "constant power" mode that
the required power cannot be obtained even with the
maximum allowed current. In such a case, the current is
limited to its maximum value and the optical power is
lower than the user-set power value. In this case, the red
indicator
"Lim"
is lightened.
Each TUNICS-OM module is calibrated with a calibration
curve gving the actual power versus position of the
single-turn knob. The calibration curves used are delivered
with the TUNICS-OM mainframe.
WA
VELENGTH
knob
The wavelength is changed via a multi-turn knob.
Although mechanical protections limits the range of the
wavelength, it is strongly recommended to control the
actual wavelength on a spectrum analyzer when changing
the wavelength. Each TUNICS-OM module is calibrated
with a calibration curve giving the actual wavelength
versus position of the multi-turn knob. The calibration
curves used are delivered with the TUNICS-OM
mainframe.
Mod. connector
Modulation input. The electrical signal input on this
connector directly modulates the laser diode chip. Please
refer to the
111.1
section.
OPTICAL OUTPUT
The optical output is available on a FCJAPC optical
connector
output connector. Connections of other type of
connectors may damage the output connector, and
strongly reduce the performance of the system.
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Disable
BNC input connector used to disable simultaneously the
light output from all modules.
I1
to
I8
connectors
Current modulation BNC output connectors.
Mains switch
Power
key
Remote Interlock
connector
Used to power ONIOFF the instrument. For the
connection of the instrument refer to the
11.2
section. To
replace the line fuse please refer to the Appendix B.
The power key is used to switch between the STANDBY
and the ON positions.
NOTE:
on the STANDBY position the system is still
powered.
Sub-D9 connector used to connect a Remote ONIOFF
switch (refer to "Safety considerations" chapter).
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11. SETTING
UP
THE INSTRUMENT
11.1. Instruction to carry the unit
To pull out the unit from its packaging or move it from place, use the
two
lateral
retractable handles as shown on the drawing which allow to keep the instrument
horizontal during carrying.
11.2. Connection
of
the instrument
Plug the modules in the
19"
rack, and screw the two front panel screws on each
module.
CAUTION:
To obtain the optimum performances of the system, it is
recommended to place the optical head, or the instrument, on a
stable surface isolated from any source of vibrations.
CONNECTION TO
EL
ECTRlCAL SUPPLY:
lieat
mnel
--
L--{/
Connect the power
I--p
supply cable to the rear
@
panel of the controller and
-
-
-
#--
-4
,y
-
then
to
the proper voltage
il
mains supply point.
!+,we1
L!
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SWITCHING
THE
INSTRUMENT ON
AND
OFF:
-To switch
ON
the instrument, set the main switch at the rear panel controller on the
"I"
position.
-Press the front panel ordoff switch, on the left part of the rack. The green light
indicates that the system is ready to operate.
-For safety reasons, the TUNICS-OM rack has a main Enable key to enable or disable
all the laser outputs. Each module has also an Enable key to enable or disable the laser
output of this particular module.
-Before moving the instrument, or when the instrument is not in use for long periods
of the time, the main switch has to be set in the "0" position.
In
this case, the
instrument is no longer powered.
OPTlCA
L
CONNECTION:
A
CAUTION:
The cleanliness of the optical connectors are important to get the
optimum performance of the system. Refer to the cleaning
instructions in the Appendix
B.
The standard output connector is
FCJAPC type connector. Never connect another type or
connector on the optical output.
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111. AUXILIARY INPUTS AND OUTPUTS
111.1.
Beam modulation
The TUNICS-OM modules have a
SMB
connector input for
high
frequency
modulation. The bandwidth is greater than
1
GHz,
and this modulation input can be
used for high frequency analog modulation.
CAUTION:
This
SMB
input is directly connected to the laser diode chip via a 500
resistor. It is essential to insure that at any time the diode is forward biased to avoid
the destruction of the diode. The maximum current flowing through the diode should
also be limited to 80
mA.
The easiest way to insure that the diode is always forward biased, is to set the optical
output to
0,
with the front panel power control knob, and to modulate with a biased
modulation signal. For instance to modulate the diode current from 0 to 80 mA which
is the maximum allowed range, the input waveform should range from
0
to
4
Volt.
111.2.
Monitor connectors
Tunics
OM
mainframes are provided with
8
BNC output connectors and one BNC
input connector located on the rear panel.
The output connectors labeled
"11"
to "18" are used to monitor the actual laser
diode current of each module. The output voltage is related to the diode current
by
:
v
=
4.7
x
I
Where
V
is the voltage in mV on a given connector, and
I
is the laser diode current
of the corresponding module. The modules are numbered from
1
to
8
from left to
right when facing the TUNICS-OM mainframe.
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The input connector labeled "Disable" may be used to disable simultaneously the
light output from all modules. When a TTL "high" level (i.e.
+5
V
nominal) is
applied to the connector, all modules light outputs are disabled. When a "low"
level (i.e.:
0
V
nominal) is applied to the connector, the common disable function is
turned off, and the output of each module
is
determined by its own enableldisable
state (front panel "Enable" key).
Each time the
TUNICS-OM
module is switched from "disable" to "enable" (either
through the rear panel input or the module front panel enable key), the system
settles to the best operating point corresponding to the optical power and
wavelength parameters. The output power may fluctuate during a short period of
time (a few milliseconds) after enabling the system while the system is
performing the best operating point search.
The operating point of each module may be periodically optimized. This function
is enabled through a switch located at the rear of the module. When the switch is
in the "single" position, the optimization takes place only when the module is
switched from "disable" to "enable" as described above. When the switch is in the
"repeat" position, the optimization automatically takes place every
5
mn.
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APPENDIX
A:
CHARACTERISTICS
CERTZFICATZONS
AND
COMPLIANCES
Category
EC Declaration of
Conformity-
EMC
EC Declaration of
Conformity- Low Voltage
Standards or description
Compliance was demonstrated to the following specification as listed in the
Official Journal of the European Union: Directive 891336lEEC fo~
Electromagnetic Compatibility.
EN 50081-1 Emission:
EN 55022 Class
B
Radiated and Conducted Emissions
EN 50082-1 Immunity:
EN 61000-4-2 Electrostatic Discharge Immunity
IEC 801-3
RF
Electromagnetic Field Immunity
EN 61000-4-4 Electrical fast Transient1 Burst Immunity
Compliance was demonstrated to the following specification as listed in the
Official Journal of the European Union: Low Voltage Directive 73123lEEC,
amended by 93168lEEC
EN 61010-
1
:
1993lA2
:
1995 Safety requirements for electrical equipment for
measurement control and laboratory use.
EN 60825-l1A
1
:
1994 Safety of laser Products, Part
I.
Equipment
classification requirements and user's guide
SAFETY CERTZFICATION COMPLIANCE:
Equipment type
Safety Class
Mains supply voltage
Installation (Overvoltage)
category
Pollution Degree
r
Safe operatingtemperature
Maximum relative humidity
Test and measuring
Class
1
(asdefined in IEC 61010-1. annex
H)-
grounded nroduct
100
-
240 V AC with
+
10% fluctuation max
Overvoltage category
I1
(as defined in IEC 61010-1, Anncx
J)
Local-level mains (wall sockets). Equipment at this level includes appliances,
portable tools, and similar products. Equipment is usually cord-connected.
Pollution Degree
2
(as defined in IEC 61010-1).
Note: rated for indoor use only.
I
Normally only dry, nonconductive pollution occurs. Occasionally a temporary
conductivity that is caused by condensation must be expected. This location is
a typical offieelhome environment. Temporary condensation occurs only when
+5 deg. C to +40 deg. C
80% for temperatures up to
3
1
deg. C
decreasing linearly to 50% relative humidity at 40 dcg.
C
2000 meters
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POWER
SOURCE:
MECHANICAL CHARACTERISTICS:
-
TUNICS-OM
controller:
Power supply
Power supply frequency
Max power consumption
Dimensions
r
100
-
240VAC
&
10%
50
-
60
Hz
f
5%
120
W
I
1
Height
1
133
mm
(5.2
in)
I
I
--
Depth
Width
I
Weight
15.7 kg
(12.6
Ib)
1
370
mm
(14.6
in)
448
mm
(17.6
in)
-
TUNICS-OM
module:
1
Dimensions Depth
1
170
mm
(6.7
in)
I
I
I
Width
1
50
mm
(2
in)
I
INTER
FA
CES:
Weight
Height
I
128
mm
(5
in)
1.15kg (2.5Ib)
Optical connector
Output isolation
Return loss
Modulation bandwidth
FCIAPC
35 dB
-60dB
10
KHz
to
1
GHz
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APPENDIX
B:
MAINTENANCE
User maintenance of the Tunics is limited to the following:
- Replacing the line Fuse.
- Cleaning optical connectors for optimum power.
- Checking the performance of optical connections and cables.
-
Cleaning the instrument.
-
Calibration.
WARNING: DO NOT MAKE ANY SERVlCE OR MAINTENANCE ON
THE LASER HEAD:
Under no circumstance, the user has to make any service
or maintenance of any kind on the laser head. The protective cover of the laser
head must not be removed by the user. Refer servicing only to authorized
personnel from Photonetics.
REPLA
CING
THE
LINE
FUSE:
Before replacing the Line Fuse be sure you unplug the power cord.
1-
Insert a small flat-blade screwdriver into the notch just inside the power
cord socket of the line filter. Use the notch to pull the fuse holder straight out
to remove the fuse.
2-
Replace the fuse (T4Amp
L
250V)
in the fuse holder and snap the fuse
holder back into the lined filter.
MAINS
holder
notch
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CLEANINGAND CARINGFOR OPTICAL CONNECTORSAND
FIBERS:
-
Handle optical fiber with appropriate care and preserve the integrity of optical
connectors by keeping them free of contamination.
-
Use the following items to clean the optical connectors:
clean compressed air
fiber-optic cleaning swabs
isopropyl alcohol
-
Follow these steps to clean the optical connectors:
1-
Hold the can of compressed air upright and spray the can into
the air to purge any propellant.
2-
Spray the clean compressed air on the connectors to remove
any loose particles or moisture.
3-
Moisten
a
clean optical swab with isopropyl alcohol then
lightly swab the surfaces of the connectors.
4-
Spray the clean compressed air on the connectors again to
remove any loose particles isopropyl alcohol.
NOTE:
Cleaning kits for optical connectors are available from many fiber optic suppliers.
CAUTION:
-
To optimize the performance of the system and prevent loss of
optical power or damage to the optical connectors, keep the
connectors clean at all times.
-
When cleaning the connectors with a swab, use gentle circular
motions. Use only high quality cleaning supplies that are non-
abrasive and leave no residue.
-
To reduce the need for cleaning, immediately replace protective
caps on the optical connectors when not in use.
-
Do not over stress or sharply bend optical fiber beyond
tolerances specified by the manufacturer.
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APPENDIX
C:
REPLACEABLE
PARTS
For information about replaceable parts, contact your Photonetics sales
representative.
STANDARD ACCESSORIES:
OPTIONALPOWER CORDS:
Name
Fuse
Manual, tech.: instruction
PM optical fiber cable
Optical fibcr cable
Power Key
North America
Description
T4Amp
L
250V
TUNICS-OM User manual
single-mode polarization maintaining cable
single-mode cable
Front panel
Universal
European
United Kingdom
1
Description
CSA
STD
C22.2
N021-M1984, ECN 436C
approved, 5-15P attachment plug cap moulded onto
No18 AWG, type SVT,SJT flexible cord, 2 meter
(78.7 inch), 125VllOA AC, US
DIN 4944112, CEE7, DIN 0625, VDE approved, IEC
attachment plug cap, HOSVV-F3G 0.7 mmflexible
cord, 2.5 meter (98.4 inch), 250VllOA AC,
EUROPEAN
BS4491.EN60.320,BASEC BS6500, ASTA BS
1363A, VDE, SEV, BSI approved,
1
.O
mm- flexible
cord, 2 meter (78.7 inch), 250VilOA
AC,
25.4
mm
fused UK plug (I3A fuse)
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