MZ modulator Q point ditherless bias controller
The MBC-HF bias voltage controller from Plugtech is a non-dither orthogonal point controller designed for MZ intensity modulators. By monitoring the laser source and modulator output optical signals, it calculates the modulator’s working point error, ensuring stable operation in the linear region. As this controller's output bias voltage does not include a dither signal, it is especially suited for analog signal modulation applications.
The MBC-HF controller supports serial communication. Users can switch the controller's working mode (automatic/manual), customize the output voltage, read system working parameters, and fine-tune working points via GUI software or by sending standard commands.

MBC-HF-01
MZ modulator Q point ditherless bias controller
Features
• Part No.: MBC-HF-01
• Compact size: 40*28*12mm
• Stabilize the system in TYP 30 seconds
• Dither free
• UART commands or GUI control supported
• User defined work point locking(near Quad point)
• Tap PD option available, easy to integrate
Applications
• Digital NRZ, RZ, PAM mdoualtion
• CATV Transmitter
• Analog Link, RoF transmitter
Options
• Wavelength: 1550nm (default), 1064nm (optional)
• On-board photodiode: [SM 1% Tap PD for M-Channel, PM 1% Tap PD for L-Channel] (default), [PM 1% Tap PD for M-Channel, PM 1% Tap PD for L-Channel] (optional), [Regular SM PD for M-Channel, Regular SM PD for L-Channel] (optional)