Santec TSL-770 User manual

Tunable Semiconductor Laser
Operation Manual
TSL-770

TSL-770 Operation Manual
Trademarks
Notes to Users
1) Copyright 2018, 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 being punished, but the Company shall not be responsible for
such a case at all, which please note.
2) When this product is exported (or brought out of Japan), if this product is applicable
to a strategic material specied in “Foreign Exchange and Foreign Trade Control Law”,
then required is an export permit of the Japanese Government under the law.
is a trademark of Santec Corporation.
TSL-770 is a trademark of Santec Corporation.

Tunable Semiconductor Laser TSL-770
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-770, and it is intended for those with sufcient knowledge enough to
of laser danger and its safe control. Before operating TSL-770, you should rst read
thoroughly through this Operation Manual and become familiar to its contents. After
reading this Operation Manual, keep it at your ngertip for easy reference at any time.
The packing materials and box of this product are needed for long-term storage or
transportation, therefore, keep them even after unpacking this product.
NOTE

TSL-770 Operation Manual
Before using this product, please carefully read this Operation Manual.
NOTE
How to Read the Manual
Before operating TSL-770, 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.

Tunable Semiconductor Laser TSL-770
Explanation of Terms
The meanings of the following terms used in this Operation Manual are defined as
below:
(1) Meaning
NOTE
This indicates pressing DANGER, and if it
is not avoided, personnel death or serious
injury results, therefore, it is the most
emphasized special information.
This indicates potential danger, and if it is
not avoided, personnel death or serious
injury may result, therefore, it is special
information.
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.
This indicates supplementary explanation
of the text, and thus other information than
DANGER, WARNING, and CAUTION.
CAUTION
WARNING!
DANGER!!
(2) Importance of Information
From the above meanings, the priority of the terms here are as shown below:
DANGER > WARNING > CAUTION > NOTE
DANGER
WARNING
CAUTION
NOTE

TSL-770 Operation Manual
1. Safety Notes 1-1
1-1 Intended use 1-1
1-2 Safety Markings 1-1
1-3 Laser Class 1-2
2. Product Composition 2-1
3. Panel Descriptions 3-1
3-1 Front Panel 3-1
3-2 Rear Panel 3-1
3-3 Side Panel 3-2
4. Installation 4-1
4-1 Operating Enviroments 4-1
4-2 Power Supply 4-1
4-3 Interlock 4-2
5. Basic Operation 5-1
5-1 Turning on the Unit 5-1
5-2 Laser Output 5-2
5-3 Setting the Wavelength 5-3
5-4 Setting the Optical Power 5-6
5-5 Setting the Wavelength Sweep 5-8
5-6 Executing the Wavelength Sweep 5-15
5-7 Turning off the Unit 5-18
6. Detailed Operation 6-1
6-1 Fine-tuning 6-1
6-2 Coherence Control 6-3
6-3 External Modulation 6-4
6- 3-1 Low-frequency Modulation 6-4
6- 3- 2 High-frequency Modulation (Option) 6-6
6- 3- 3 Wavelength Modulation 6-8
Contents
Introduction
How to Read the Manual
Explanation of Terms

Tunable Semiconductor Laser TSL-770
6-4 Power Monitor Signal Output 6-10
6-5 Trigger Setting 6-11
6-6 Displaying the Product Information 6-13
6-7 System Alert 6-14
6-8 Screen Brightness Settings 6-15
7. Operation By Communication 7-1
7-1 GPIB 7-1
7-1-1 Connection 7-1
7-1-2 GP-IB Function 7-2
7-1-3 Setting Address, Delimiter, and Command set 7-3
7-2 USB 7-4
7-2-1 Connection 7-4
7-2-2 Communication Conditions and System Requirements 7-4
7-2-3 Installing a USB Driver Software 7-5
7-2-4 Installing a VCP Driver Software 7-9
7-3 LAN
7-13
7-3-1 Connection 7-13
7-3-2 Communication Conditions and System Requirements 7-14
7-3-3 Settings 7-14
7-4 Command Reference
7-16
8. Specications 8-1
8-1 Specications 8-1
8-2 Regulations conformity 8-2
9. Maintenance 9-1
9-1 Daily Maintenance 9-1
9-2 Cleaning the Optical Connector 9-1
9-3 Replacing Fuses 9-2
9-4 Inspection and Calibration 9-2
9-5 Self-inspection and Self-calibration 9-3
9-6 Firmware update 9-8
9-7 Long-term Storage 9- 11
10. Re-packing and Shipping 10-1
10-1 Re-packing 10-1
10-2 Packing Instruction 10-2
10-3 Shipping 10-5

TSL-770 Operation Manual
11. Troubleshooting 11-1

Tunable Semiconductor Laser TSL-770
1-1
Safety Notes
1
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 specied in this manual, the protection
provided by this product may be impaired.
1-1 Intended use
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.

1-2
TSL-770 Operation Manual
Laser Type ：External Cavity Diode Laser
Laser Class ：1M IEC60825-1(2014)
Output Power ：< 50mW
Laser Diameter ：10um
Numerical aperture ：0.1
Wavelength ：1200-1700nm
This product radiates class 1M invisible laser. Do not look at the tip of optical output
connector using optical instruments like magniers or microscopes. The laser radiation
can seriously damage your eyesight. Please pay attention to handling of laser.
DANGER!!
Laser Safety Labels
This product is classied class 1M laser product according to IEC 60825-1 (2014).
1-3 Laser Class

Tunable Semiconductor Laser TSL-770
2-1
Product Composition
2
This product is composed of the TSL-770 body and accessories. Check to make
sure that all the following items are included.
Check to make sure that the product body and the accessories have no scratches
or stains. If any items are found to have scratches or stains, please contact us.
• TSL-770 Body 1
• Power cord 1
• Interlock terminator 1
• Operation Manual & Software 1
• Inspection report 1

2-2
TSL-770 Operation Manual

Tunable Semiconductor Laser TSL-770
3-1
Panel Descriptions
3
3-1 Front Panel
Display and Touch screen
HOME key
Power On/Off key
and LED indicator
Numeric keypad Optical Output
Active key
Dial
ENTER key
Optical Output
Connector (inside)
3-2 Rear Panel
USB connector
(Device)
USB connector
(Host)
LAN connector
GPIB connector
External Interlock
connector
Power Monitor connector
Analog input
RF Modulation
input (option)
Trigger connectors
(Input and Output)
Exhaust fan
Power inlet and
Fuse box

3-2
TSL-770 Operation Manual
Handle
Legs
3-3 Side Panel
Air intakes
Rear feet

Tunable Semiconductor Laser TSL-770
4-1
Installation
4
CAUTION
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.
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 eld, magnetic eld, 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-770 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-770 weighs about 16 kg. Please ensure that the table or shelf
upon which it is installed has sufcient 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 airow.
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 Ⅱ and can operate between 100 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 - 240V) (Refer to "9-3. Replacing Fuses").
4-1 Operating Environments
4-2 Power Supply

4-2
TSL-770 Operation Manual
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 “INTERLOCK”. 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.
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 "IntLock" is indicated in the display of the front panel, the interlock circuit is
in open state.
NOTE

Tunable Semiconductor Laser TSL-770
5-1
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 30
seconds.
3. Wavelength and power values are displayed on the main display.
Basic Operation
5
5 -1 Turning on the Unit

5-2
TSL-770 Operation Manual
1. Press the Optical Output Active key. The key top turns green and the optical output
becomes active. Laser is output from the optical output connector during the LED
illuminate.
2. Press the Optical Output Active key again to turn off optical output. Laser output is
interrupted and the LED turns off.
Make sure that the optical fiber is connected correctly to the optical output
connector before performing LD output.
5 -2 Laser Output
When “IntLock” is displayed on the main screen of the front panel, the interlock
circuit is open and the Laser is not output.
NOTE
CAUTION

Tunable Semiconductor Laser TSL-770
5-3
1. Touch λ on the main screen
2. The wavelength setting screen appears, and the cursor highlights in the wavelength
display area.
3. Input values according to “How to input values” (Refer to next page.).
 Range:Speciedwavelengthrange
Unit: 0.0001 nm
5-3 Setting the Wavelength

5-4
TSL-770 Operation Manual
■How to input values
Using the numeric keypad
(1) Input the value directly. Input all digits of integral numbers.
(2) Press ENTER to accept the new value.
(3) The main screen appears after setting.
Using the dial
(1) Press the ENTER key or the dial to enter input mode.
(2)Touchthedigittochange.Thedefaultdigitistherstdigit.
(3)Turnthedialtochangethevalue.Thesettingvalueisreectedimmediately.
(4) Press the ENTER key or the dial to exit input mode.
Numeric keypad input is convenient for one-time settings; dial input or cursor key input is
convenient for continuous settings.
〈Reference:〉
△
△
If using the dial to input a value, the screen does not go back to the main screen
after the setting is complete. Touch BACK on the screen or press Home key to go
back to the main screen.
NOTE