DFB Laser Diode, Polarization Maintaining Output, 1310 nm (DFB-1310-PM)

Data Sheet

The Optilab DFB-PM DFB laser is designed for RF over Fiber (RFoF) systems, to be utilized in combination with an external optical intensity modulator, such as a standard LiNbO3-based Mach-Zehnder modulator.

Product Overview

The Optilab DFB-PM DFB laser is designed for RF over Fiber (RFoF) systems, to be utilized in combination with an external optical intensity modulator, such as a standard LiNbO3-based Mach-Zehnder modulator. The MQW DFB laser features up to 40 mW of output optical power, high side mode suppression ratio, low RIN noise, and a narrow linewidth. The DFB-PM is housed in an industry standard 14-pin butterfly package, with a built-in thermoelectric cooler, thermistor, a back-facet monitor photodiode for conventional power monitoring, and an optional second photodiode for wavelength reference monitoring. Availabile in a wide variety of C-band wavelengths, the DFB-PM can be temperature tuned to ITU frequencies to allow for Dense Wavelength
Division Multiplexing (DWDM) applications.

Applications

  • RF over Fiber (RFoF)
  • Hybrid Fiber-Coaxial (HFC)
  • Dense Wavelength Division Multiplex (DWDM)
  • General laboratory and research use

Features

  • Polarization maintaining output
  • Up to 40 mW output power
  • Low RIN noise, -135 dB/Hz maximum
  • Narrow linewidth, 2 MHz typ.
  • Wavelenghts from 1528 nm - 1562 nm
  • 14-Pin Butterfly Package
  • Built-in TEC, Thermistor & Monitor PD

Feature Name Description
General Specifications
Wavelength Range 1528 nm- 1562 nm
Optical Output Power 10, 20, 30, and 40mW
Operating Current 240 mA typ., please see L-I Chat
Forward Voltage 2.5 V typ.
Slope Efficiency 01.4 mW/mA typ.
Threshold Power 150 μW
Monitor Current 0.10 mA min., 1.0 mA max.
Side Mode Suppression 30 dB min.
Linewidth 2 MHz typ.
Optical Isolation 30 dB min.
Relative Intensity Noise -135 dB/Hz max., -145 dB/Hz avail.
Polarization Extinction Ratio 20 dB typ.
TEC and Thermistor Characteristics
TEC Current 1.0 A max.
TEC Voltage 2.4 V max.
Thermistor Resistance 7.7 k Ω min., 12.6 k Ω max.
Cooler Power 2.4 W max.
Thermistor B Constant 3,270 K min., 3,630 K max.
Absolute Maximum Ratings
Reverse Voltage 2 V
Operating Current 300 mA
PD Reverse Voltage 20 V
PD Forward Current 10 mA
TEC Voltage 4 V
TEC Current 4 A
Lead Soldering Time 10 Sec @ <260ºC
Mechanical Specifications
Operating Temperature -10 ºC to +60 ºC standard; temperature qualified version is available.
Storage Temperature -40 ºC to +70 ºC
Operating Humidity 95% @ <30ºC
Optical Fiber Type Panda PM
Optical Connector FC/APC, others available
Housing Hermetic 14-Pin Butterfly Type