Modulator Bias Control Board, Q+ Only (BCB-2)

Data Sheet

Product Overview

The Optilab BCB-2 is a compact bias control board designed to maintain the linear operating point of optical intensity modulators. Featuring a compact minature design for OEM integration, the BCB-2 allows for a stable Quadrature point operation over long operating periods of time. With a USB 2.0 DC power and monitor interface standard, the BCB-2 unit is the ideal choice for industrial and OEM applications when paired with any of Optilab’s wide variety of optical modulators.


  • Analog lightwave modulation
  • Full Bandwidth RFoF transmission
  • RF/IF signal distribution
  • Satellite communication
  • Optical communications


  • Dedicated Q+ Bias Setting Mode
  • USB 2.0 Interface for Power and Monitoring
  • 4-Pin Connector for PD Current In, DC Bias Out
  • Compatible with all MZI Optical Modulators
  • Optional On-board Photodiode

Feature Name Description
General Specifications
Modulator Type Mach zehnder interferometer
Bias Control Principle Small Signal Dithering
Bias Output Impedance 100 Ω
Bias Output Voltage ±10V
Modulator Voltage VPI Range 3-8V
Remote Monitor and Power USB 2.0
Mechanical Specifications
Operating Temperature -10 °C to +60 °C
Storage Temperature -60 °C to +90 °C
Power Supply Requirements 5V, 100mA typ.
Alarm LED DC Power status
Dimensions 132 mm x 26 mm x 8 mm

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