Design of a compact photonic-crystal-based polarizing beam splitter

Tao Liu; Armis R. Zakharian; Mahmoud Fallahi; Jerome V. Moloney; Masud Mansuripur

doi:10.1109/LPT.2005.848278

Design of a compact photonic-crystal-based polarizing beam splitter

Tao Liu, Armis R. Zakharian, Mahmoud Fallahi, Jerome V. Moloney, Masud Mansuripur

Research output: Contribution to journal › Article › peer-review

136 Scopus citations

Abstract

A compact polarizing beam splitter based on a photonic crystal (PC) directional coupler with a triangular lattice of air holes is designed and simulated. In the employed PC structure, transverse-electric (TE) light is confined with the photonic bandgap effect, while transverse-magnetic (TM) light is guided through an index-like effect. Due to the different guiding mechanisms, TM and TE light have strikingly different beat lengths, which is utilized to separate the two polarizations in a directional coupler no longer than 24.2 μm. The two-dimensional finite-difference time-domain method of computation is used to evaluate the device performance. The extinction ratios are found to be around 20 dB for both TE and TM polarized light.

Original language	English (US)
Pages (from-to)	1435-1437
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	17
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2005.848278
State	Published - Jul 2005

Keywords

Optical waveguides
Photonic crystals (PCs)
Polarizing beam splitters (PBSs)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2005.848278

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title = "Design of a compact photonic-crystal-based polarizing beam splitter",

abstract = "A compact polarizing beam splitter based on a photonic crystal (PC) directional coupler with a triangular lattice of air holes is designed and simulated. In the employed PC structure, transverse-electric (TE) light is confined with the photonic bandgap effect, while transverse-magnetic (TM) light is guided through an index-like effect. Due to the different guiding mechanisms, TM and TE light have strikingly different beat lengths, which is utilized to separate the two polarizations in a directional coupler no longer than 24.2 μm. The two-dimensional finite-difference time-domain method of computation is used to evaluate the device performance. The extinction ratios are found to be around 20 dB for both TE and TM polarized light.",

keywords = "Optical waveguides, Photonic crystals (PCs), Polarizing beam splitters (PBSs)",

author = "Tao Liu and Zakharian, {Armis R.} and Mahmoud Fallahi and Moloney, {Jerome V.} and Masud Mansuripur",

note = "Funding Information: Manuscript received July 13, 2004; revised February 15, 2005. This work was supported by AFOSR Contract F49620-02-1-0380 awarded by the Joint Technology Office, by AFOSR Contract FA9550-04-1-0213, and in part by the National Science Foundation STC Program under Agreement DMR-0120967.",

year = "2005",

month = jul,

doi = "10.1109/LPT.2005.848278",

language = "English (US)",

volume = "17",

pages = "1435--1437",

journal = "IEEE Photonics Technology Letters",

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AU - Liu, Tao

AU - Zakharian, Armis R.

AU - Fallahi, Mahmoud

AU - Moloney, Jerome V.

AU - Mansuripur, Masud

N1 - Funding Information: Manuscript received July 13, 2004; revised February 15, 2005. This work was supported by AFOSR Contract F49620-02-1-0380 awarded by the Joint Technology Office, by AFOSR Contract FA9550-04-1-0213, and in part by the National Science Foundation STC Program under Agreement DMR-0120967.

PY - 2005/7

Y1 - 2005/7

N2 - A compact polarizing beam splitter based on a photonic crystal (PC) directional coupler with a triangular lattice of air holes is designed and simulated. In the employed PC structure, transverse-electric (TE) light is confined with the photonic bandgap effect, while transverse-magnetic (TM) light is guided through an index-like effect. Due to the different guiding mechanisms, TM and TE light have strikingly different beat lengths, which is utilized to separate the two polarizations in a directional coupler no longer than 24.2 μm. The two-dimensional finite-difference time-domain method of computation is used to evaluate the device performance. The extinction ratios are found to be around 20 dB for both TE and TM polarized light.

AB - A compact polarizing beam splitter based on a photonic crystal (PC) directional coupler with a triangular lattice of air holes is designed and simulated. In the employed PC structure, transverse-electric (TE) light is confined with the photonic bandgap effect, while transverse-magnetic (TM) light is guided through an index-like effect. Due to the different guiding mechanisms, TM and TE light have strikingly different beat lengths, which is utilized to separate the two polarizations in a directional coupler no longer than 24.2 μm. The two-dimensional finite-difference time-domain method of computation is used to evaluate the device performance. The extinction ratios are found to be around 20 dB for both TE and TM polarized light.

KW - Optical waveguides

KW - Photonic crystals (PCs)

KW - Polarizing beam splitters (PBSs)

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Design of a compact photonic-crystal-based polarizing beam splitter

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Keywords

ASJC Scopus subject areas

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