PlugTech Precision Systems' modulator bias controller is specially designed for Mach-Zehnder modulators to ensure stable operations in various operating environments. Based on its fully digitized signal processing method, the controller can provide ultra stable performance. The controller acquiring light input to modulator and output from modulator and determines condition of the bias voltage and related error. A compensative bias voltage will be applied afterwards according to the previous measurements. In this way, the modulator is ensured to work under a proper bias voltage. The controller does not inject a dither signal. This feature is important for analog systems.

Features:

• MZM bias control within [Quad-80◦, Quad+80◦] 
• Low profile: 40mm(W) × 28mm(D) × 12mm(H) 
• Typical Second Order Distortion1 : -60dB 
• No dither injected 
• High stability: with fully digital implementation 
• Easy to use: Manual operation with mini jumper Flexible OEM operations through UART
• Two different modes to provide bias voltage: Automatic bias control & User defined bias voltage 

Applications:

• LiNbO3 and other MZ modulators 
• Digital NRZ, RZ 
• CATV transmitter 
• Analog link, RoF transmitter 

Datasheet

User Manual

MBC-HF-01 Software

Powerboard Reference Guide