Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.2166850
Title: Ultracompact and large-scale power splitters on silicon-based two-dimensional photonic crystals at near-infrared wavelengths
Authors: Zhao, Y.
Zhang, Y.
Li, B.
Chaudhari, B.
Chua, S.J. 
Keywords: Optical coupler
Optical power splitter
Photonic crystal waveguide
Issue Date: Feb-2006
Source: Zhao, Y.,Zhang, Y.,Li, B.,Chaudhari, B.,Chua, S.J. (2006-02). Ultracompact and large-scale power splitters on silicon-based two-dimensional photonic crystals at near-infrared wavelengths. Optical Engineering 45 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1117/1.2166850
Abstract: An optical power splitter with one input and three output ports is proposed and demonstrated for near-infrared applications in the wavelength range of 2.3 to 2.5 μm. The device operates on the principle of directional coupling by introducing photonic crystal line-defect waveguides. Its functionality and performance have been numerically investigated and simulated by the finite-difference time-domain method. By cascading two 1 × 3-structure power splitters, a large-scale optical power splitter with one input and five output ports is achieved. The simulated results show that the 1 × 5 large-scale power splitter can also perform 1 × 2, 1 × 3, and 1 × 4 functions. The required optical power from each of the output waveguides can be easily controlled by adjusting the coupling length of interaction for photonic crystal line-defect waveguides. The total length of the 1 × 5 power splitter is 40 μm, which is significantly less than that of the conventional non-photonic-crystal power splitter. This is a promising device for future ultracompact and large-scale nanophotonic integrated circuits. © 2006 Society of Photo-Optical Instrumentation Engineers.
Source Title: Optical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/57739
ISSN: 00913286
DOI: 10.1117/1.2166850
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