Santec ECL-210 Bedienungsanleitung
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EXTERNAL CAVITY
TUNABLE LD LIGHT SOURCE
Operation Manual
ECL-210
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ECL-210 Operation Manual
Disclaimer
Every effort has been made to ensure the information contained in this manual is accurate and easily
understandable. Santec shall not, however, be liable for errors contained herein, or for incidental or
consequential damages in connection with the use of this material.
Copyright 2000, Santec Corporation, Japan. No part of this document may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying,
recording, or otherwise without the prior written permission of Santec Corporation, Japan.
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EXTERNAL CAVITY TUNABLE LD LIGHT SOURCE ECL-210
This manual explains the operation and safety features of the ECL-210 External Cavity Tunable LD
Light Source. To ensure the safe operation of the instrument, and to prevent the risk of personal injury
and/or damage to the equipment we recommend that you read the manual fully before commencing
installation and operation. In particular Chapter 6 outlines the precautions necessary to ensure safe
operation. The following safety symbols are used throughout the manual and on the equipment to
indicate safety related information.
DANGER!!
CAUTION
Packing Materials
The original packing materials are required to ensure the safe long term storage and safe transportation
of this equipment. It is recommended that all packing materials are kept for these purposes.
This indicates a dangerous procedure that could result in serious injury or
death if not performed properly.
This indicates there is a danger due to laser radiation. Do not look directly at
the laser beam or look at the beam by eye through any optical instrument.
About This Manual
This indicates a hazardous procedure or danger that might result in injury or
that could damage the equipment if proper precautions are not taken.
This mark is used on the equipment as a warning of danger.
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ECL-210 Operation Manual
About this Manual
1. Introduction
2. Specifications
2.1. ECL-210 Standard Specification
2.2. MLS-2100 Standard Specification
2.3. MLS-8100 Standard Specification
3. Features
3.1. Tuning Wavelength
3.2. Coherence Control
3.3. LD Injection Current, Control of Circumstance Temperature
3.4. Precise Optical Power Control
3.5. Built-in Attenuator
3.6. Fine Wavelength Tuning Control
3.7. Plug & Play
3.8. Communication Interfaces
4. Principle of Operation
4.1. ECL Principle of Operation
4.2. The Unit Principle of Operation
5. Panel Descriptions
5.1. Front Panel
5.2. Rear Panel
5.3. Bottom Panel
5.4. Side Panel
6. Safety Information
6.1. Mains Voltage
6.2. Installation
6.3. Safe Operation
Table of Contents
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EXTERNAL CAVITY TUNABLE LD LIGHT SOURCE ECL-210
7. Operation Procedures
7.1. Contents of Fundamental Operation
7.2. Turning Power On
7.3. Optical Fiber Connection
7.4. Selecting Units in MLS
7.5. MLS MODE
7.6. MLS Matrix LED
7.7. Shuttle Switch
7.8. Driving LD and Shutting LD Off
7.9. Setting Wavelength
7.10. Setting Optical Output Power
7.11. ACC Function
7.12. Fine Tuning Function
7.13. Coherence Control
7.14. Low Frequency Modulation
7.15. Setting GPIB Address and Delimiters
7.16. Parameter Memory of Each Unit
7.17. Plug and Play
7.18. Shutting Power Off
8. Communication Interfaces
8.1. GPIB Control
8.2. RS-232C Control
8.3. Control Commands
9. Example Programs
8.4. GPIB Program
8.5. RS-232C Program
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ECL-210 Operation Manual
10. Care and Maintenance
10.1. Care
10.2. Maintenance
10.3. Cleaning the Optical Connectors
10.4. Changing the Fuse
11. Option
12. Troubleshooting
13. Warranty
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EXTERNAL CAVITY TUNABLE LD LIGHT SOURCE ECL-210
1-1
1Introduction
The ECL-210 is an electronically tunable multi-channel LD light source. It utilizes Santec's
considerable expertise in external cavity type tunable semiconductor laser design, and in particular
uses an interference filter in the external cavity for wavelength control and selectivity.
Wavelength and optical power can be set up by simple operation compared with usual manual tuning
method. With the growth of the telecommunications industry, there is a need for tunable light sources
to evaluate EDFA, and DWDM. Santec designed the ECL-210 to meet this need with a unit that has
precise wavelength tuning accuracy, excellent wavelength and power stability, and high optical output
power. Used as a stand-alone unit or as part of a larger test system, the ECL-210 is the excellent choice
as a tunable light source to use in optical research and development, inspection, production testing.
The ECL-210 is wavelength stable light source which utilizes both a wavelength selecing and a
wavelength locking filter filter inside the unit. High precision temperature control of wavelength
locking filter enables extremely high wavelength stability and repeatability to be achieved.
To operate the ECL-210 the unit needs to be installed in either the MLS-2100 or MLS-8100 Rack.
These racks provide a power supply and the control electronics for operation. The MLS-2100 is a two
channel rack and the MLS-8100 allows up to eight channels to be used simultaneously.
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1-2
ECL-210 Operation Manual
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EXTERNAL CAVITY TUNABLE LD LIGHT SOURCE ECL-210
2-1
Specications
2
2-1 ECL-210 standard specication
Specication
parameter Unit Min. Spec. Max. Note
Wavelength
Tuning range nm 1530 - 1610
Minimum tuning nm 80 - -
Resolution nm - - 0.024 <0.001nm When using ne tuning
Accuracy nm - - 0.1
Repeatability nm - - 0.01 Number of times of measurement n=50, Measured at center
wavelength
Stability nm - - 0.01 1 hour, Measured at center wavelength
Fine tuning range GHz 200 - - 1.6nm(Typ.)
Power
Maximum output power mW
8 - -
6 - - Minimum output power between a certain 40nm
4 - - Minimum output power
Accuracy % - - 5
Repeatability dB - - 0.01 Number of times of measurement n=50, Measured at center
wavelength, +6dBm
Stability dB - - 0.01 1 hour, Measured at center wavelength, +6dBm
Flatness dB - - 0.2 Measured at +6dBm
Buit in attenuator dB 0 - 20 Resolution: 0.04dB (Typ.)
Environmental condition
Operating temp. range oC 20 - 30
Operating humidity
range % - - 80 No condensation
Storage temp. range oC 10 - 40
Storage humidity range % - - 80 No condensation
Recalibration period Year 1 - - Recommended
Spectrum
Spectrum line width MHz - - 0.2 Coherence control OFF
0.2 - 200 Coherence control ON
SSR dB 50 - - 50dB(Typ.)
Interface
Optical connector - - FC -
Optical ber - - SMF - SM, 10/125-UV/UV-250
Connector polish - - SPC - Supoer polish connector
RS-232IF - - Yes -
LF Modulation
Modulation range KHz 0 - 10 Measured at -3dBm
Input level V -1 - 1
Modulation coefcient mA/V - 100 -
Input impedance KW - 4.7 -
Modulation input - - SMA - Input from the rear panel
Power supply
Laser safety class - 3A
Dimensions
Width, Height, Depth mm 35,85,350 Excludes the projection
Weight kg 0.5
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Inhaltsverzeichnis
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