摘要
提出了一种基于Gires-Tournois腔的非对称型光学交错梳状滤波器。理论上,通过调整两个波片的偏振延迟和Gires-Tournois腔的反射率,可以获得任意光谱带宽比的非对称型交错梳状滤波器件。分别对输出带宽比M=1∶3和M=1∶7的非对称型交错梳状滤波器的输出进行了数值模拟,确定两个波片的延迟和Gires-Tournois腔的反射率。分别设计和研制出了输出光谱带宽比M=1∶3和M=1∶7的器件,其中M=1∶3器件的两个输出通道的3 dB带宽分别为0.385 nm和1.161 nm,比值为M=1∶3.02,M=1∶7器件的两个输出通道的3 dB带宽分别为0.191 nm和1.331 nm比值M=1∶6.75。实验结果(光谱带宽比)与设计要求基本符合。
An asymmetric optical interleaver （AOI） based on G-T etalon type is proposed, In principle, by adjusting two waveplate parameters and the etalon reflectance, asymmetric interleavers with any spectral bandwidth ratio can be constructed. Simulation on the output of asymmetric optical interleavers with spectral bandwidth ratio of 1 ： 3 and 1：7 are presented. The analysis on how to determine the parameters of the two waveplates, the reflectance of the Gires-Tournois etalon and their matching are given. A device with spectral bandwidth ratio of 1： 3 and 1 ： 7 is designed and fabricated, the output of 1： 3 device is 0.38 nm and 1,15 nm at 3 dB and the output of 1 ： 7 device is 0. 191 nm and 1. 331 nm at 3 dB. Experimental results （spectral bandwidth ratio） are in good agreement with the design.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2008年第1期31-35,共5页
Acta Optica Sinica
基金
上海市科委光技术专项(04dz05105)资助课题
