Wideband design of nonreciprocal phase shift magneto-optical isolators using phase adjustment in Mach-Zehnder interferometers
Wideband design of nonreciprocal phase shift magneto-optical isolators using phase adjustment in Mach-Zehnder interferometers
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DOI：
10.1364/ao.45.007144
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发表时间：
2006-09-20
期刊：
影响因子：
1.9
通讯作者：
Mizumoto, Tetsuya
中科院分区：
文献类型：
--
作者：
Shoji, Yuya;Mizumoto, Tetsuya
提出了一种基于马赫-曾德干涉仪的非互易相移磁光隔离器的宽带设计。在两个干涉仪臂中传播的反向波之间的不可逆相位差的波长依赖性由可逆相位差的波长依赖性来补偿。这是通过在干涉仪臂之一中引入适当的相位偏置来实现的。给出的两个设计示例在磁性石榴石波导隔离器的 1.40-1.63 μm 波长范围内和硅线波导隔离器在 1.485-1.630 μm 的波长范围内向后损耗 > 30 dB。 (c) 2006 年美国光学学会
A wideband design is proposed for nonreciprocal phase shift magneto-optical isolators based on Mach-Zehnder interferometers. The wavelength dependence of nonreciprocal phase difference between the backward waves propagating in two interferometer arms is compensated for by that of reciprocal phase difference. This is realized by introducing an appropriate phase bias in one of interferometer arms. Two design examples are presented with a backward loss of > 30 dB in the wavelength range of 1.40-1.63 mu m for a magnetic garnet waveguide isolator and of 1.485-1.630 mu m for a Si-wire waveguide isolator. (c) 2006 Optical Society of America