Theoretical analysis of two-dimensional photonic-crystal spot-size converter in Si for 1.55-µm operation

Yuzhou Zhao; Baojun Li; Xiying Ma

doi:10.1117/1.2181888

1 March 2006 Theoretical analysis of two-dimensional photonic-crystal spot-size converter in Si for 1.55-µm operation

Yuzhou Zhao, Baojun Li, Xiying Ma

Author Affiliations +

Optical Engineering, Vol. 45, Issue 3, 038001 (March 2006). https://doi.org/10.1117/1.2181888

Abstract

A tapered spot-size converter with adjustable step length in two-dimensional photonic crystals has been proposed by removing several rows of dielectric rods from the photonic crystal structure. Its functionality and performance have been numerically investigated and simulated by the finite-difference time-domain method. The device has a conversion ratio of 10:1 and more than 80% power transmission efficiency for an optical communication wavelength of 1.55 µm. The converter has high compactness and potential applications as a connector in the optical signal connection between photonic-crystal-based waveguide devices and conventional micro-optical waveguide devices or single-mode optical fibers.

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

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Yuzhou Zhao, Baojun Li, and Xiying Ma "Theoretical analysis of two-dimensional photonic-crystal spot-size converter in Si for 1.55-µm operation," Optical Engineering 45(3), 038001 (1 March 2006). https://doi.org/10.1117/1.2181888

Published: 1 March 2006

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KEYWORDS

Waveguides

Photonic crystals

Computer simulations

Silicon

Finite-difference time-domain method

Single mode fibers

Lithium

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