Digital MZ Modulator Bias Controller

Modulator Bias Controller

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Continuously Tunable Modulator Bias Controllers

The MBC-DG-LAB is an automatic bias controller specially designed to lock the operating point of LiNb03 Mach-Zehnder modulators and ensure a stable operation over time and environmental conditions.

The MBC-DG-LAB controller is a continuously tunable bias controllers, meaning it allows operation of the controlled intensity modulator at any point of its transfer function and thus can be used for any telecom modulation schemes, such as NRZ, DPSK, RZ,..

The MBC-LAB benefits of an Auto-set operation for the Min, Max, Quad ± modes resulting in a simplified use.


Discover our Modulators Bias Controllers available for delivery within 2 to 4 weeks on the In-Stock MBC page.


Benefits & Features

  • Auto-set bias points (Min, Max, Quad ±)
  • Control of any bias points from modulator transfer function curve
  • Continuous tuning of the operating point
  • USB remote control


  • LiNbO3, InP, GaAs modulators
  • Digital modulation schemes NRZ, RZ, DPSK,…
  • Pulse applications
  • Analog applications

Main Specifications

  • Operating wavelength: from 600 nm up to 1 600 nm
  • Locking accuracy @Quad: 90 ± 0.5 degree
  • Extinction ratio at MIN mode: 50 ± 0.05 dB
  • Auto-set bias points (Min, Max, Quad ±)


Product Specification Datasheet
MBC-DG-LAB-A1 PDF More info
MBC-DG-LAB-A2 PDF More info

Application Notes

Introduction to iXblue MBC

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