光通信研究Issue(1)：24-26,3.
基于3×3和2×2耦合器的非对称交错滤波器的设计
Design of asymmetric interleavers based on 2 ×2 and 3 ×3 fiber couplers
摘要
Abstract
In order to improve the output of the optical flat-top extent and expand the channel bandwidth of interleaver filters,an all-fiber cascaded Mach-Zehnder Interferometer (MZI)-typed interleaver filter consisting of one 3×3 and two 2×2 single-mode fiber couplers is developed.The expression between the output spectrum of the model and its relevant parameters is deduced u-sing the transfer matrix method and its characteristics are analyzed.The result shows that an ideal interleaving spectrum can be produced when the difference between the coupler splitting ratio and the fiber interference arms are constant.This filter has a channel interval of 2 nm and,when assisted by double-ring fibers,its output waveform is still more flat-topped and the side-mode suppression ratio is close to the theoretical value.关键词
马赫-曾德干涉仪/双环辅助光纤/耦合器/波长交错滤波器Key words
MZI/double-ring assisted optical fiber/coupler/wavelength interleaver filter分类
信息技术与安全科学引用本文复制引用
薛建华,鲁怀伟..基于3×3和2×2耦合器的非对称交错滤波器的设计[J].光通信研究,2013,(1):24-26,3.基金项目
国家自然科学基金资助项目(11172119) （11172119）
