Santec OTF-320 User manual

OTF-320
Optical Tunable Filter
Operation Manual

OTF-320 Operation Manual
Trademarks
Notes to Users
1) Copyright 2010, 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 Santec Corporation shall not be
responsible in any way.
2) When this product is exported (or brought out of Japan), if this product is applicable
to a strategic material specifed in “Foreign Exchange and Foreign Trade Control Law”,
an export permit of the Japanese Government is then required under the law.
is a trademark of Santec Corporation.
OTF-320 is a trademark of Santec Corporation.

Optical Tunable Filter OTF-320
Introduction
Thank you for purchasing our product, Optical Tunable Filter OTF-320. This Instruction
Manual contains information and precautions necessary for the operation of OTF-320.
This manual is intended for those with suffcient knowledge to conduct the evaluation
of laser danger and its safe control. Before operating OTF-320, you should frst
thoroughly read this Instruction Manual and become familiar with its contents. After
reading this Instruction Manual, keep it close at hand 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

OTF-320 Operation Manual
Before using this product, please carefully read this Operation Manual.
NOTE
How to Read the Manual
Before operating OTF-320, please read carefully this instruction manual.
This Operation Manual consists of 9 Chapters:
Chapters 1 to 4 illustrate the outline of this product, safety precautions, and installation
of the product.
Chapter 5 describes how to operate the product.
Chapter 6 describes the applications.
Chapter 7 explains the specifications.
Chapter 8 describes the maintenance and storage methods of this product.
Chapter 9 describes the troubleshooting in operation.

Optical Tunable Filter OTF-320
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
device 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

OTF-320 Operation Manual
Introduction
How to Read the Manual
Explanation of Terms
1. Safety Information 1
2. Production Composition 2
3. Panel Description 3
3-1. External Appearance 3-1
3-2. Dimensions 3-2
4. Installation 4
5. Basic Operation 5
5-1. Optical Fiber Connection 5-1
5-2. Setting the Wavelength and Locking the dial / Unlocking the dial 5-2
6. Operating Principles 6
7. Specifications 7
8. Maintenance 8
8-1 Daily Maintenance 8-1
8-2 Cleaning the Optical Connector 8-1
8-3 Long-Term Storage 8-1
9. Troubleshooting 9
Contents

Optical Tunable Filter OTF-320
1-7
1Safety Information
Please note the following points when utilizing the instrument in order to protect the instrument, and
prevent instrument failure.
• Avoid impact or shock.
• Keep this product away from water.
• Do not disassemble this product.
• Do not place anything on this product.
• Do not place in direct sunlight.
• Do not place in an environment with dust, dirt, salt, or corrosive gas.
• Do not place under high temperature and high humidity.
• Do not bend, pull or apply excess force to the bers. It would become a cause of problem.
Regarding the OTF-320, when a laser source is input to the connector, the laser is output
from another connector. The laser beam may cause permanent damage to your sense
of sight if it comes in contact with your eyes. Therefore special attention and careful
manipulation must be taken when operating this instrument. When the unit is not in use,
be sure to use the protection cap (shown in the gure below).
Pay attention to the following guidelines.

1-8
OTF-320 Operation Manual

Optical Tunable Filter OTF-320
2-9
2Production Composition
This product is composed of the OTF-320 body and accessories.
Check to make sure that all the following items are included.
OTF-320 body (1)
Inspection report (1)
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.
OTF-320 body (1) Inspection report (1)

2-10
OTF-320 Operation Manual

Optical Tunable Filter OTF-320
3-11
Indicator for Wavelength
Optical Input
Connector
Optical Output
Connector
Optical Fiber
Nameplate
Knob
Dial
Locked Position of dial from the factory. Position after stage is unlocked
The dial is in the locked position to lock the optical stage to prevent the damage
during shipment. Please turn the knob counter clockwise to release and unlock the
optical stage.
3Panel Description
3-1 External Appearance
Released

3-12
OTF-320 Operation Manual
3-2 Dimensions
4-M3 depth4
Unit : mm

Optical Tunable Filter OTF-320
4-13
4Installation
Pay attention to the following guidelines for safe, trouble-free operation.
This product is a high-precision device:
• 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 where the unit is subject to falling objects landing on it.
• Do not place on an inclining area.

4-14
OTF-320 Operation Manual

Optical Tunable Filter OTF-320
5-15
5Basic Operation
5-1 Optical Fiber Connection
Remove the cap of the optical connector and connect the optical ber to the connector. Repeat the
operation with another connector.
Before connecting an optical fiber, always clean the end face of the connector. In
addition, we recommend that the socket is also periodically cleaned (see Section 8-2). If
dirt is present on either the end face of the connector or the socket, the insertion loss will
be increased. In addition, when high optical powers are used there is the possibility that
the connectors may be damaged by scorching.
Before connecting the input light, check that the optical power does not exceed the
maximum specied level for the OTF-320. The maximum level is +25dBm. If the optical
input exceeds this limit, there is a risk of damage to the OTF-320’s internal optical
elements.

5-16
OTF-320 Operation Manual
5-2 Setting the Wavelength and Locking the dial/Unlocking the dial
Set the wavelength by turning the dial or the knob on the dial for wavelength setting. Turn the dial
clockwise for longer wavelengths; turn counter clockwise for shorter wavelengths.
Then lock the dial by using the knob for wavelength locking. Tuck and turn the knob clockwise for
wavelength locking; turn counter clockwise for wavelength unlocking.
[Locking the dial ]
1) Hold the dial by the left hand and push in the knob by the right hand.
2) Turn the knob clockwise for dial locking.
[Unlocking the dial ]
3) Hold the dial by the left hand and turn the knob counter clockwise for dial unlocking.

Optical Tunable Filter OTF-320
6-17
6Applications
1) Wavelength trimming from broad light source
2) Wavelength selecting, ltering
3) Spectrum Analysis

6-18
OTF-320 Operation Manual

Optical Tunable Filter OTF-320
7-19
7 Specifications
Table7-1. OTF-320 Product Specifcations

7-20
OTF-320 Operation Manual