40 GHz Compact Modulator w/ Bias Control, Low Drive, V Connector (CMB-40-LD-V)

Data Sheet

Product Overview

The Optilab CMB-40-LD-V is a Compact Modulator Board designed for analog photonics applications from DC to 40 GHz. This unit includes a compact optical intensity modulator and an Automatic Bias Control (ABC) board. The external laser source of CMB modules are typically DFB lasers. CMB series is an ideal solution for high density RFoF sub-system integration.


  • Analog Lightwave Modulation
  • 40 GHz RFoF transmission
  • RF/IF Signal Distribution
  • Satellite Communication
  • Optical communications to 43 Gb/s
  • Multi-channel RFoF system


  • 40 GHz operational bandwidth
  • Low drive voltage: 2.5 V @ 10 GHz typ.
  • Compact and low power consumption
  • 1520 nm to 1610 nm wavelength range
  • Automatic Bias Control
  • Accepts external laser source via input
  • Customizable options: PM Output, Temperature Qualified (-55 °C to +75 °C)

Feature Name Description
General Specifications
Operating Wavelength 1520 nm to 1610 nm
Laser Source User’s External Input
Optical Input Level +18 dBm max.
RF Return Loss >15 dB @ 10 GHz; >10 dB @ 30 GHz
Impedance 50 Ω
Operating Frequency Range DC to 40 GHz
Input RF Voltage 26 dBm max.
Optical Output Level 7 dBm @ +14 dBm input typ.
S21 Bandwidth 3 dB, 33 GHz typ.
Modulator Bias Mode Q+ for linear operation
Extinction Ratio 25 dB typ.
Modulator Voltage VPI 2.5 V typ. @ 10 GHz; 4.3 V typ. @ 30 GHz
Analog Link Performance
IIP3 @7 GHz 29 dBm typ.
1 dB Conpression Point @10 GHz 14.5 dBm typ.
Mechanical Specifications
Operating Temperature (Standard) -30 °C to +60 °C
Operating Temperature (TQ) -55 °C to +75 °C
Storage Temperature -60 °C to +90 °C
Power Supply Requirements 5V, 500 mA max.
Optical Connectors FC/APC
Fiber Type >1m, PANDA input, SMF-28 output; PANDA input/output (PM version)
RF Input Connector V connector
Electrical Connector 6 Pin, 5 volt supply and RS485
Remote Control Software command via RS485
Alarm LED Bias mode status
Dimensions 143 mm x 34 mm x 20.8 mm

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