偏压控制器 Ultra High Precision MZM bias controller on Q point
发布时间: 2016-06-20 23:23
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.
Description 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 injects a low frequency, low amplitude dither signal together with a bias voltage into the modulator. It keeps reading the output from the modulator and determines the condition of the bias voltage and the related error. A compensate 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 is very compact in volume, and is suitable for modern communication systems.
Features
MZM bias control on Q+ and Q- modes
Typical Second Order Distortion: -60dB
Low dither amplitude: 2% Vπ
High stability: with fully digital implementation
Easy to use: Manual operation with mini jumper Flexible OEM operations through UART
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