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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 33 — Nov. 20, 2004
  • pp: 6187–6190

Photonic crystal beam splitters

Chii-Chang Chen, Hung-Da Chien, and Pi-Gang Luan  »View Author Affiliations


Applied Optics, Vol. 43, Issue 33, pp. 6187-6190 (2004)
http://dx.doi.org/10.1364/AO.43.006187


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Abstract

This work studies two-dimensional photonic crystal beam splitters with two input ports and two output ports. The beam splitter structure consists of two orthogonally crossed line defects and one point defect in square-lattice photonic crystals. The point defect is positioned at the intersection of the line defects to divide the input power into output ports. If the position and the size of the point defect are varied, the power of two output ports can be identical. The beam splitters can be used in photonic crystal Mach-Zehnder interferometers or switches. The simulation results show that a large bandwidth of the extinction ratio larger than 20 dB can be obtained while two beams are interfered in the beam splitters. This enables photonic crystal beam splitters to be used in fiber optic communication systems.

© 2004 Optical Society of America

OCIS Codes
(230.1360) Optical devices : Beam splitters
(260.3160) Physical optics : Interference

History
Original Manuscript: March 7, 2004
Revised Manuscript: August 3, 2004
Published: November 20, 2004

Citation
Chii-Chang Chen, Hung-Da Chien, and Pi-Gang Luan, "Photonic crystal beam splitters," Appl. Opt. 43, 6187-6190 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-33-6187

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