偏壓控制器 Ultra High Precision MZM bias controller on NULL point
發布時(shí)間: 2016-06-20 23:23
PlugTech Precision Systems’ modulator bias controller is specially designed for Mach-Zehnder modulators to ensure a stable operation state 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 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.
Description PlugTech Precision Systems’ modulator bias controller is specially designed for Mach-Zehnder modulators to ensure a stable operation state 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 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.
Features
MZM bias control on Null and Peak modes
High extinction ratio: 53dB Maximum 50.4dB DC extinction ratio lab verified 43dB carrier suppression lab verified
Low dither amplitude: 0.1% Vπ
High stability: with fully digital implementation
Easy to use: Manual operation with mini jumper Flexible OEM operations through UART
Application
LiNbO3 and other MZ modulations
Brillouin scattering system and other optical sensors