Analysis of mode-selective coupling between few-mode fibers and waveguides with lateral misalignment

Jin Xia Shi; Kai Xin Chen; Kin Seng Chiang

doi:10.1117/12.2500814

5 November 2018 Analysis of mode-selective coupling between few-mode fibers and waveguides with lateral misalignment

Jin Xia Shi, Kai Xin Chen, Kin Seng Chiang

Proceedings Volume 10814, Optoelectronic Devices and Integration VII; 108140J (2018) https://doi.org/10.1117/12.2500814
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

We present an analysis of the effects of lateral misalignment on the performance of butt-coupling between a 6-mode step-index circular-core fiber and a matched 6-mode square-core waveguide. For a typical 6-mode fiber with a core index of 1.4540, a cladding index of 1.4440, and a core diameter of 13.1 μm, low modal crosstalk (–20 dB) butt-coupling can be achieved with a lateral misalignment smaller than about 0.4 μm.

Citation Download Citation

Jin Xia Shi, Kai Xin Chen, and Kin Seng Chiang "Analysis of mode-selective coupling between few-mode fibers and waveguides with lateral misalignment", Proc. SPIE 10814, Optoelectronic Devices and Integration VII, 108140J (5 November 2018); https://doi.org/10.1117/12.2500814

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