Power splitter based on photonic crystal waveguides with an air holes array

Tianbao Yu; Lingjuan He; Xinhua Deng; Liguang Fang; Nianhua Liu

doi:10.1117/1.3646102

1 November 2011 Power splitter based on photonic crystal waveguides with an air holes array

Tianbao Yu, Lingjuan He, Xinhua Deng, Liguang Fang, Nianhua Liu

Author Affiliations +

Optical Engineering, Vol. 50, Issue 11, 114601 (November 2011). https://doi.org/10.1117/1.3646102

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.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Tianbao Yu, Lingjuan He, Xinhua Deng, Liguang Fang, and Nianhua Liu "Power splitter based on photonic crystal waveguides with an air holes array," Optical Engineering 50(11), 114601 (1 November 2011). https://doi.org/10.1117/1.3646102

Published: 1 November 2011

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