激光与光电子学进展, 2013, 50 (11): 111202, 网络出版: 2013-10-20
高精度温控可调光栅滤波器的设计
Design of Tunable Grating Filter Based on High-Precision Temperature Control
测量 温度控制 光栅可调滤波器 铝槽封装 measurement temperature control tunable grating filter aluminum groove encapsulation
摘要
设计了一个高精度温控可调光栅滤波器。采用铝槽对光纤光栅进行封装,使光栅免受应变作用,然后使用高精度温控模块对铝槽封装的光栅进行温度控制,从而实现保持光纤光栅中心波长长期稳定的目的。该光纤滤波器温控模块采用三块温控芯片MAX1978并行工作的方式提高温控效果,温控精度可达0.1 ℃,动态范围10 ℃~40 ℃连续可调。在不同环境温度下测试光栅稳定性,光栅中心波长标准差为0.0016 nm。实验结果证明了该设计的可行性。
Abstract
We present a design of tunable grating filter based on high-precision temperature control. We use aluminum groove to encapsulate the grating so that it is insusceptible to strain. Then we design a high-precision temperature control module composed of 3 pieces of temperature control chips MAX1978 working in parallel to monitor and control the temperature of aluminum groove, thus achieving the long-term stability of center wavelength of the tunable grating filter. The temperature accuracy can reach 0.1 ℃, with the dynamic range of 10 ℃~40 ℃ continuously adjustable. The tunable grating filter based on this temperature control module can reach 0.0016 nm wavelength stability at center wavelength. The experimental results confirm the configuration′s feasibility.
陈福昌, 余超群. 高精度温控可调光栅滤波器的设计[J]. 激光与光电子学进展, 2013, 50(11): 111202. Chen Fuchang, Yu Chaoqun. Design of Tunable Grating Filter Based on High-Precision Temperature Control[J]. Laser & Optoelectronics Progress, 2013, 50(11): 111202.