三镜级联结构Gires-Tournois谐振腔的色散特性分析  

Study on Chromatic Dispersion of Three-Mirror Gires-Tournois Resonators

作　　者：张娟[1] 王昌[1] 张志宏[1] 黄肇明[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《光子学报》2008年第1期120-124,共5页Acta Photonica Sinica

基　　金：上海市重点学科建设项目(T0102);上海市教委发展基金(05ZA45);上海市高校选拔培养优秀青年教师专项基金资助

摘　　要：系统分析了三镜级联结构G-T谐振腔的色散特性,表明三镜级联结构G-T谐振腔具有不同于两镜级联结构G-T谐振腔的特有色散特性.利用该特性以三镜级联结构G-T谐振腔作为色散补偿元件可有效改善MGTI型interleaver的色散性能,并给出了以三镜级联结构G-T谐振腔为补偿元件的具体补偿实例.模拟结果表明:对50GHz的MGTI型光交错复用器,可实现中心波长附近±0.08nm、±0.09nm和±0.1nm范围内的色散绝对值分别小于1ps/nm、2.4ps/nm和6.6ps/nm的良好的补偿结果.与文献报道的两镜级联结构G-T腔补偿结果相比,色散绝对值小于1ps/nm的波长范围扩大了60%;在中心波长附近±0.09nm范围内的色散绝对值降低了92%.Chromatic dispersion properties are investigated for three-mirror Gires-Tournois resonators. The dispersion properties peculiar to the three-mirror Gires-Tournois resonator are demonstrated. The idea which the dispersion of MGTI interleaver can effectively improved with three-mirror Gires-Tournois compensator is pointed out and a compensation example with three-mirror Gires-Tournois resonator as compensator is given. The numerical simulation results indicate that for a 50 GHz MGTI interleaver, the chromatic dispersion can be respectively within ±1 ps/nm, ±2.4 ps/nm and ±6.6 ps/nm in the range of ±0.08 nm, ±0.09 nm and ±0.1 nm center-wavelength. Compared with the result of a two-mirror Gires-Tournois resonator,the compensation range with dispersion within ± 1 ps/nm is broaden 60% and the absolute value of dispersion in the range of ±0.09 nm center-wavelength is reduced 92%.

关 键 词：密集波分复用 光交错复用器 Gires—Tournois谐振腔 色散 

分 类 号：TN929.11[电子电信—通信与信息系统]