Analysis of GaN-based single-mode rib waveguide with large cross section

Xiaobo Xing; Xiaoqing Deng; Baojun Li; Bharat S. Chaudhari

doi:10.1117/1.2358091

1 July 2006 Analysis of GaN-based single-mode rib waveguide with large cross section

Xiaobo Xing, Xiaoqing Deng, Baojun Li, Bharat S. Chaudhari

Journal of Micro/Nanolithography, MEMS, and MOEMS, Vol. 5, Issue 3, 033009 (July 2006). https://doi.org/10.1117/1.2358091

Abstract

A GaN-based optical single-mode rib waveguide with a large cross section is systematically designed and analyzed using the finite-difference vector beam propagation method (FD-VBPM). The method is a combination of numerical aperture and FD-VBPM, which is used to determine the single-mode conditions for a GaN/Al_xGa_1–xN optical rib waveguide. We analyze the optical propagation properties and loss characteristics of the designed waveguides. The analysis illustrates that optical power increases with an increase of the rib width or a decrease of the slab height. Therefore, our analysis results can be helpful in the process of designing a GaN-based rib waveguide for optical communications.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Xiaobo Xing, Xiaoqing Deng, Baojun Li, and Bharat S. Chaudhari "Analysis of GaN-based single-mode rib waveguide with large cross section," Journal of Micro/Nanolithography, MEMS, and MOEMS 5(3), 033009 (1 July 2006). https://doi.org/10.1117/1.2358091

Published: 1 July 2006

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