C Band Wavelength Tunable Laser Module, High Performance Version (TWL-C-HP-M)

Data Sheet

Product Overview

The TWL-C-HP-M is a wavelength tunable laser module in C band based on integrable tunable laser assembly (ITLA). The TWL-C-HP-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-HP-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-HP-M can be used for Dense Wavelength Division Multiplexing (DWDM) optical transceivers and DWDM discrete line card designs.


  • Optical Add/Drop Multiplexers
  • DWDM transmission systems
  • Tunable DWDM transponders and transceivers
  • Reconfigurable optical add/drop multiplexers
  • Optical packet or burst-mode switching
  • Test and measurement equipments
  • Fiber sensing and interrogation
  • Optical spectrum characterization


  • Wide wavelength tuning range from 1527.60nm to 1567.13nm
  • Wavelength step resolution of 1 GHz
  • High optical output power of 50 mW
  • Ultra narrow laser line width < 10 kHz
  • Continuous wavelength sweeping function
  • Excellent Side Mode Suppression Ratio of 55 dB
  • Polarization Maintaining (PM) Output
  • Intuitive and easy to use USB interface

Feature Name Description
General Specifications
Operating Wavelength 1527.60nm to 1567.13nm
Wavelength Accuracy ± 1.5 GHz
Fine Tune Wavelength Resolution 1 GHz
Wavelength Stability ± 1pm over 24 hours
Output Power 50mW typ.
Output Stability 0.02 dB over 8 hours
Linewidth (FWHM) < 10 kHz instantaneous w/o dither < 100 kHz with SBS disabled < 750 MHz w/ SBS enabled
Carrier to Noise Ratio (CNR) 50 dBc typ. @ -5 dBm
Side Mode Suppression Ratio 55 dB typ.
Relative Intensity Noise (RIN) -157 dB/Hz @ 13 dBm
Polarization Extinction Ratio 20 dB min.
Optical Isolation 30 dB min.
Fiber Type Panda Panda 1550 PM Fiber
Mechanical Specifications
Power Supply Requirements 100-240 VAC
Optical Connectors PM Narrow Key FC/APC Standard, additional types available upon request
Operating Temperature 0°C to +40°C
Storage Temperature -40°C to +70°C
Control Output Power Level and Wavelength via GUI software
Communication Interface RS232, via DB9 serial or USB 2.0
Accessory PS-12-M, 12V power supply.
Local Alarm Over Temperature, Current Overflow
Dimensions 120mm x 112mm x 32mm

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