Observation of optical isolation based on nonreciprocal phase shift in a Mach-Zehnder interferometer

被引:26
作者
Fujita, J [1 ]
Levy, M
Ahmad, RU
Osgood, RM
Randles, M
Gutierrez, C
Villareal, R
机构
[1] Columbia Univ, Microelect Sci Labs, New York, NY 10027 USA
[2] Litton Airtron SYNOPTICS, Charlotte, NC 28273 USA
[3] SW Texas State Univ, San Marcos, TX 78666 USA
关键词
D O I
10.1063/1.124949
中图分类号
O59 [应用物理学];
学科分类号
摘要
Measurements up to 45 degrees nonreciprocal phase shift using the transverse magneto-optical effect have been made in a hybrid Mach-Zehnder waveguide/fiber interferometer. BiLu-IG waveguides of various thicknesses and lengths have been used to study the length and thickness dependence of the effect at lambda=1.55 mu m. This interferometric scheme is also employed to observe optical isolation; an extinction ratio of 11 dB is obtained for the 45 degrees nonreciprocal phase shift, in agreement with theoretical predictions. (C) 1999 American Institute of Physics. [S0003-6951(99)02233-0].
引用
收藏
页码:998 / 1000
页数:3
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