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Optical Engineering

Power splitter based on photonic crystal waveguides with an air holes array
Author(s): Tianbao Yu; Lingjuan He; Xinhua Deng; Liguang Fang; Nianhua Liu
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Paper Abstract

We propose a new type of 3 dB optical power splitter by splitting reflected field in photonic bandgaps (PBGs) based on photonic crystal waveguides (PCWs) with a triangular lattice of air holes. By employing PBGs effect, the propagation fields with frequencies under the cutoff frequency of guided modes in a modulated PCW (MPCW) are reflected back and output from two symmetrically placed waveguides. As a consecutive section of input PCW, the MPCW is realized by varying the size of the border holes adjacent to the PCW core. A nearly full transmission with a wide bandwidth is achieved only by introducing a defect hole in the MPCW. It provides a new method and a compact model to split input power in PCW devices and can find practical applications in future photonic integrated circuits.

Paper Details

Date Published: 1 November 2011
PDF: 5 pages
Opt. Eng. 50(11) 114601 doi: 10.1117/1.3646102
Published in: Optical Engineering Volume 50, Issue 11
Show Author Affiliations
Tianbao Yu, Nanchang Univ. (China)
Lingjuan He, Nanchang Univ. (China)
Xinhua Deng, Nanchang Univ. (China)
Liguang Fang, Nanchang Univ. (China)
Nianhua Liu, Nanchang Univ. (China)

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