OPTILAB TWL-C-M Series User manual

TWL-C-M Series Module User’s Manual
Tunable Wavelength Laser, C-Band Module
Caution: The user must read this manual before operating the TWL-C-M unit. Operations other
than those described in this manual may result in personal injury and/or damage to
the unit.
Note that any attempt to open or fix the equipment without prior approval by
Optilab, LLC voids the warranty.
Ver. 1.6
May 25th 2021

TWL-C-M User’s Manual
Page ii of iii
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
Revision History
Version
Date
Summary
1.0
9/03/15
Manual introduced.
1.1
02/06/18
Housing and PS revision
1.2
02/01/19
Logo change
1.3
11/04/19
GUI Software revision
1.4
12/11/19
GUI Software v1.0.1 revision
1.5
7/27/2020
Added note: Scan mode available for HP version only
1.6
05/25/2021
Software User Manual Updated
Copyright ©2021 by Optilab, LLC
All rights reserved.
This document is copyrighted property of Optilab, LLC. It may not be used in whole or in part for
manufacture, sale, or design of items without the written permission of Optilab, LLC.
Information herein is preliminary and subject to change without any notices.

TWL-C-M User’s Manual
Page iii of iii
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
Table of Contents
1. GENERAL INFORMATION 1
1.1. INTRODUCTION 1
1.2. PRODUCT OVERVIEW 1
1.3. FEATURES 1
1.4. USER SAFETY 2
2. OPERATION 2
2.1. INTRODUCTION 2
2.2. INITIAL INSPECTION 2
2.3. CONTROLS 3
2.4. OPERATION INSTRUCTIONS 6
3. SOFTWARE 7
3.1. SOFTWARE INTERFACE AND CONTROL 7
3.2. GENERAL 8
3.3. LASER SETTING 9
3.4. SCAN MODE 11
5. TROUBLESHOOTING 13
6. TECHNICAL SPECIFICATIONS 14
7. MECHANICAL SPECIFICATIONS 14
8. SERVICE AND SUPPORT 15
8.1. WARRANTY 15
8.2. SERVICE AND CALIBRATION 15
8.3. CARE OF FIBER-OPTIC CONNECTORS 16

TWL-C-M User’s Manual
Page 1 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
1. General Information
1.1. Introduction
This manual contains information on the installation and operation of the TWL-C-M
C-band tunable wavelength laser source.
1.2. Product Overview
The TWL-C-M is a wavelength tunable laser module in C band based on integrated
tunable laser assembly (ITLA). The TWL-C-M alleviates inventory and costs in high-
channel-count DWDM systems by allowing a single device to replace each of the
single-channel devices. Full-band tunable assemblies also enable system
functionality such as hot back-up and dynamic provisioning in addition to applications
of optical regeneration and wavelength conversion, with the HP version also
including a built-in sweep function for continuous scanning applications. The TWL-C-
M has a low Relative Intensity Noise (RIN), a high Side-Mode Suppression Ratio
(SMSR), an ultra-narrow linewidth, and excellent wavelength accuracy. Its RS232
control complies to OIF ITLA Multi Source Agreement (MSA) standard, with a
provided GUI software for intuitive control of the wavelength and optical power. The
TWL-C-M can be used for Dense Wavelength Division Multiplexing (DWDM) optical
transceivers and DWDM discrete line card designs.
1.3. Features
•Wide wavelength tuning range from 1527.6nm to 1567.13nm
•Precise Wavelength step resolution of 1 MHz
•High optical output power of 50 mW
•Ultra narrow laser line width <10 kHz
•Continuous wavelength sweeping function
•Linewidth broadening to 750 MHz
•Excellent Side Mode Suppression Ratio of 55 dB
•Polarization Maintaining (PM) Output
•Intuitive and easy to use USB interface

TWL-C-M User’s Manual
Page 2 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
1.4. User Safety
1. The TWL-C-M unit uses high intensity invisible light from the optical output
receptacle. Avoid direct exposure to skin and eyes.
2. The equipment case is fully certified for EMS protection. The user should never
open the equipment case; any attempt will void the warranty and may result in
electric shock and EMS attack to equipment in the vicinity.
3. The user should avoid using any solvent or vaporizing chemical to clean the
equipment panel or case. It may result in damage to the surface and internal
circuits.
2. Operation
2.1. Introduction
This chapter describes how to operate the TWL-C-M unit, and discusses the location
and function of the controls and connectors.
2.2. Initial Inspection
Your TWL-C-M unit was carefully inspected before it left the manufacturer. It should
be in proper working order upon receipt. You should, however, inspect the unit for
any damage that may have occurred in transit. If the shipping container or the
packing material is damaged, keep it until the contents of the shipment have been
checked to be free of mechanical and electrical damages. Notify Optilab, LLC
promptly if any notable damage is found.
Each TWL-C-M shipment should include the following:
•TWL-C-M module unit
•User Manual
•Test Datasheet
•AC/DC Power Supply with Power Cords
•USB Cable

TWL-C-M User’s Manual
Page 3 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
2.3. Controls
FEATURE
FUNCTION
OPTICAL OUTPUT
PORT
This receptacle accepts the indicated fiber-optic connector for
the tuned optical output, which is polarization-maintaining
type (PM).
DB15 ELECTRICAL
PORT
This port connects directly to the included power supply unit,
which relays the ±5VDC and RS232 pin terminals for remote
interfacing. Please refer to the pin-out diagram below.
LED INDICATORS
These LED indicators provide the status of the TWL-C-M.
The “Power” indicator will illuminate blue when the device has
received proper DC and the power supply AC switch is
enabled. The “Laser” indicator will illuminate blue when the
laser is enabled for operation, as set by the Laser Enable
Switch.
④SRQ OUTPUT
Used to externally synchronize the lasers high performance
scanning function. Only functional with the HP model
firmware upgrade.
TWL-C-M Laser Module
1
2
3
4

TWL-C-M User’s Manual
Page 4 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
DB15 Pin-Out Diagram

TWL-C-M User’s Manual
Page 5 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
FEATURE
FUNCTION
ACPOWER SOCKET
This receptacle accepts the electrical input for the
110/220VAC source
AC POWER SWITCH
Enables / disables the AC electrical power to the module
unit.
LED INDICATORS
These LED indicators provide the status of the TWL-C-M.
The ‘Power” indicator will illuminate green when the device
has received proper AC power connections and the rear
panel AC switch is enabled. The “Laser”indicator will
illuminate green when the laser is enabled for operation, as
set by the Laser Enable Switch.
LASER ENABLE
SWITCH
This key switch toggles the internal TWL-C-M laser source
ON and OFF
USB /DB9
COMMUNICATION
PORTS
These ports are used to send the software commands for
proper interface and control. Using the switch selects
between either USB or DB9 as the primary interface.
DB15 ELECTRICAL
PORT
This port connects directly to the TWL-C-M laser unit, which
relays the ±5VDC and RS232 pin terminals for remote
interfacing.
MOLEX DC OUT
This four-pin output port is used as an alternative to the DB-
15 port, and is not necessary for the TWL-C-M operation.
TWL-C-M Power Supply
1
2
4
3
5
6
7

TWL-C-M User’s Manual
Page 6 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
2.4. Operation Instructions
Start-up Procedure
1. Insert the AC power cord into an appropriate AC power supply source and the
power supply AC Power Socket on the TWL-C-M unit.
2. Make the proper PC communication port connection, either USB or DB9 via serial
cable, ensuring the communication switch is set to the intended primary control
method.
3. To ensure proper remote communication, ensure the Laser Enable button is in the
enabled (inward) position prior to switching the AC Power Switch to the on
position.
4. Once all proper communication and optical connections are made, enable the rear
panel AC Power Switch to the On position; the Power LED should enable green
on the DC supply (blue on the TWL unit), and the Laser LED should also enable
green (blue on the TWL unit).
5. The TWL-C-M unit is now fully operational; please refer to the Software Interface
and Control section for more adjustment and operation details.
Patchcord Swapping Procedure
1. Toggle the AC Power Switch to the OFF position to disable the TWL-C-M module
output.
2. Swap patchcords as desired. Only connect the indicated connector patchcords to
the optical input/output receptacles, cleaning them as necessary.
3. Toggle the AC Power Switch to the ON position; refer back to the Start-Up
procedure to resume operation.

TWL-C-M User’s Manual
Page 7 of 16
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
3. Software
‘Optilab TWL GUI’ is provided to control TWL-C-M. There are main three categories
in software, ‘General’, ‘Laser Setting’, and ‘Scan Mode’ depends on usage. Please
refer to following instruction for more detail.
3.1. Software Interface and Control
For the standard TWL-C-M, connecting the rackmount unit to an external PC will
allow for parameter monitoring and power and wavelength adjustments.
Using the front panel USB 2.0 port and an appropriate Optilab TWL software
(Provided by Optilab), connect the TWL-C-M to a PC using the following connection
diagram and serial port settings:
Computer
USB 2.0 Port
on Computer
Standard
USB Cable
Serial Port Settings
Baud Rate: 9600 bps
Data Bits: 8
Stop bits: 1
Parity: None
Flow Control: None
TWL-C-M
USB 2.0 Port
Front Panel