The relation between the air gap thickness and the peak wavelength in micro-optical electromechanical system (MOEMS) optical tunablefilter based on Fabry-Perot etalon is discussed.
分析了基于法布里珀罗腔的微光机电系统可调谐滤波器中，空气腔厚度与峰值波长间的关系。
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A novel method of edge filter demodulation for fiber Bragg grating that use wavelengthtunable laser was proposed. Real-time monitoring of the multiple points' dynamic strain could be achieved.
A new structure of tunable polarization interference dense wavelength division multiplexing (DWDM) filter based on the analog birefringent module is presented.