Compact DFB Laser Module, Compact, Polarization Maintaining (DFB-C-PM-M)

Data Sheet

Product Overview

The Optilab DFB-C-P-M is a Distributed Feedback (DFB) Polarization Maintaining (PM) laser source module designed to work with Optilab Compact Modulator w/ Bias Control (CMB) for RFoF applications. The DFB-C-P-M can be ordered from more than 20 wavelengths in 1310 nm and 1550 nm ranges. The DFB laser’s operating temperature and output power are precisely controlled to ensure constant wavelength stability and power stability. Using its USB interface, the user can control the laser drive current and wavelength via PC interface. Contact Optilab for more information.


  • Light source 40G RFoF analog link
  • External modulated DWDM networks
  • Laboratory testing and measurement
  • DFB laser testing
  • Interface to CMB for integration


  • Designed for CMB series
  • Polarization Maintaining (PM) output
  • Laser linewidth <1 MHz is available
  • Built in heat sink
  • up to 40 mW output
  • Wavelength tuning range: ±1 nm
  • Over 20 wavelengths available
  • USB interface remote control

Feature Name Description
Technical Specifications
Available Wavelength Range O-band: 1270-1350 nm; C-band: 1528-1564 nm; See attached Table 1.0
Wavelength Accuracy ±50 pm max.
Output Power Level 10 mW, 20 mW, 30 mW, 40 mW
Output Power Stability ±0.2 dB over 8 hours
Wavelength Accuracy ±10 pm over 8 Hours
Laser Linewidth 2 MHz typ., < 1 MHz is available
Side Mode Suppression Ratio 45 dB typ.
Optical Isolation 30 dB typ.
Relative Intensity Noise (RIN) -140 dB/Hz typ.; -145 dB/Hz is available
Polarization Extinction Ratio 20 dB typ.
Adjustable Features and Output
DFB Power Output 10 -100% adjustable range
DFB Wavelength Tuning (optional) ±1.0 nm (from wavelength center)
Mechanical Specifications
Operating Temperature 10 ºC to +50 ºC
Operating Temperature (TQ Version) -55 ºC to +70 ºC
Storage Temperature -65 ºC to +85 ºC
Operating Humidity 0% to 85% Relative Humidity
Power Supply ±5 V DC, 500 mA
Power Consumption 5 W max.
Dimensions 145 x 32.5 x 18 mm
Control / Monitoring LD Current, Laser Wavelength
Remote Control RS-485 or USB
Optical Connectors FC/APC; Other options are available
Optical Fiber Type PANDA for PM Output
Accessories included USB cable, power supply

Product Requests and Consulting

If you would like more information about Optilab Products or Custom Solutions, please Submit a Product Request.

If you'd like to contact Optilab directly, you can reach a sales representative by email (JavaScript must be enabled to view this email address).