摘要
利用偏振光干涉和多光束干涉的原理 ,推导了BGT型交叉复用器的传输函数。分析传输函数发现 ,Gires Tournois腔的反射率越高 ,交叉复用器的 0 .5dB通带带宽越宽 ,隔离度越小 ;反之 ,0 .5dB通带带宽越窄 ,隔离度越大。设计、调试相关实验 ,验证了BGT型交叉复用器性能参量之间的关系。可利用BGT型交叉复用器的这一特性来确定其结构参量 。
Based on the theory of polarized light interference and multibeam interference, the transmission function of birefrigent Gires-Tournois (BGT) interleaver is deduced. It is concluded that the higher the reflectivity is, the broader interleaver bandwidth and the lower contrast are whereas the narrower the bandwidth, the higher the contrast. Related experiments are designed and adjusted to verify the relationship between performance parameters of BGT interleaver. The structure parameters can be determined and tunable interleaver can be achieved by using the characteristics of BGT interleaver.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2003年第9期1068-1070,共3页
Acta Optica Sinica
