Share Email Print

Optical Engineering

Ultracompact and large-scale power splitters on silicon-based two-dimensional photonic crystals at near-infrared wavelengths
Author(s): Yuzhou Zhao; Yao Zhang; Baojun Li; Bharat S. Chaudhari; Soo Jin Chua
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 1 February 2006
PDF: 5 pages
Opt. Eng. 45(2) 024601 doi: 10.1117/1.2166850
Published in: Optical Engineering Volume 45, Issue 2
Show Author Affiliations
Yuzhou Zhao, Sun Yat-Sen Univ. (China)
Yao Zhang, Sun Yat-Sen Univ. (China)
Baojun Li, Sun Yat-Sen Univ. (China)
Bharat S. Chaudhari, International Institute of Information Technology (India)
Soo Jin Chua, Institute of Materials Research and Engineering (Singapore)

© SPIE. Terms of Use
Back to Top