Broadband mode switch based on a three-dimensional waveguide Mach-Zehnder interferometer

被引：42

作者：

Huang, Quandong ^{[1
]}

Jin, Wei ^{[1
]}

Chiang, Kin Seng ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

OPTICS LETTERS | 2017年 / 42卷 / 23期

关键词：

LITHIUM-NIOBATE; INTEGRATED-MODE; DIVISION; MULTIPLEXER; NETWORKS; TRANSMISSION; COUPLERS; ARRAYS;

D O I：

10.1364/OL.42.004877

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a mode switch that operates on modulating the optical phases of a three-dimensional balanced four-arm waveguide Mach-Zehnder interferometer. We design and fabricate the device with polymer material to achieve thermo-optic switching between any two of the E-11, E-21, E-12, and E-22 modes of the waveguide. Our experimental device shows an extinction ratio higher than 14 dB and a switching time shorter than 3.7 ms, measured with the E-11 mode switched to any of the other modes at 1550 nm. This mode switch can operate over a wide range of wavelengths with weak polarization dependence and could be used in reconfigurable fiber-based mode-division-multiplexing systems where mode routing is required. (C) 2017 Optical Society of America

引用

页码：4877 / 4880

页数：4

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