thermo-optical constant

A digital control system is designed for the pump source, which contains the power detected circuit, temperature detected circuit, constant current circuit and thermo-electric cooler driven circuit. The control algorithms of power and temperature are realized in FPGA.

在泵浦源电路的设计中，采用了数字控制的方法，分别设计了功率检测、温度检测、恒流驱动和热电制冷器（TEC）驱动电路，功率和温度的控制算法用FPGA来实现。

Polymers are the most foreground material in integration optical waveguide devices due to small dielectric constant, high electro-optical and thermo-optical constant, low thermal losses, ease of fabrication and vertical integration and so on.

有机聚合物以其介电常数小，电光和热光系数大，热损耗小，易于加工且可垂直集成等优点已成为制作集成光波导器件最具有前景的材料。