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Modulator Bias Controllers

Pharad has developed a family of dither-free bias controllers for OEM applications that provide accurate and highly stable bias voltage control of electro-optic modulators and operate with modulators having both periodic and non-periodic transfer functions. As the modulator bias point drifts over time, the bias controller automatically adjusts the bias voltage to maintain its set point. The non-dither based control which operates in conjunction with on-board inline optical power monitors ensures unwanted dither tones do not impact link performance, making them the ideal solution for analog applications. The integrated inline power monitors also eliminate the need for user supplied external optical couplers or photodetectors; greatly simplifying experimental set-ups.

The Pharad bias controllers enable continuous tuning of the modulator bias voltage on its transfer characteristic via a standard RS-232 communications interface. USB control of the modulator bias point is also available as an option. The OEM boards are offered in two form factors; an ultra-compact version and a direct mount configuration that provides sufficient space and mounting holes for direct attachment of the modulator.


adobe pdf Modulator Bias Controller Brochure






bias controller, modulator bias controller, electro optic modulator bias controller


bias controller, modulator bias controller, electro optic modulator bias controller

Available Models

Model Number Ultra-Compact Direct Mount USB Control Wide λ Range
MBC-DF-UC
X
     
MBC-DF-UC-U
X
 
X
 
MBC-DF-DM  
X
   
MBC-DF-DM-W  
X
 
X








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