PCF-based polarization splitters with simplified structures

Lin Zhang; Changxi Yang; Changyuan Yu; Ting Luo; Alan E. Willner

doi:10.1109/JLT.2005.857779

PCF-based polarization splitters with simplified structures

Lin Zhang, Changxi Yang, Changyuan Yu, Ting Luo, Alan E. Willner

Research output: Journal article publication › Journal article › Academic research › peer-review

26 Citations (Scopus)

Abstract

We propose novel polarization splitters based on photonic crystal fibers (PCFs), in which the cores of the splitters are nearly nonbirefringent. Different from conventional fiber-based polarization splitters, the birefringence in the new splitters results mainly from narrow silica regions physically connecting the two cores. This means that polarization splitting can be achieved without employing highly birefringent cores, which provides a possibility to greatly simplify the structures of the PCF-based polarization splitters and make them more practical. A 5-mm-long splitter with an extinction ratio of 20 dB has been obtained. We also discuss how the silica regions influence coupling characteristics of the dual-core PCFs and present a design guidance for the polarization splitters based on polarization-dependent coupling.

Original language	English
Pages (from-to)	3558-3565
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	23
Issue number	11
DOIs	https://doi.org/10.1109/JLT.2005.857779
Publication status	Published - 1 Nov 2005
Externally published	Yes

Keywords

Birefringence
Couplers
Holey fiber
Optical fibers
Photonic crystal fiber (PCF)
Polarization splitter
Polarization-dependent coupling

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

More information

10.1109/JLT.2005.857779

Cite this

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title = "PCF-based polarization splitters with simplified structures",

abstract = "We propose novel polarization splitters based on photonic crystal fibers (PCFs), in which the cores of the splitters are nearly nonbirefringent. Different from conventional fiber-based polarization splitters, the birefringence in the new splitters results mainly from narrow silica regions physically connecting the two cores. This means that polarization splitting can be achieved without employing highly birefringent cores, which provides a possibility to greatly simplify the structures of the PCF-based polarization splitters and make them more practical. A 5-mm-long splitter with an extinction ratio of 20 dB has been obtained. We also discuss how the silica regions influence coupling characteristics of the dual-core PCFs and present a design guidance for the polarization splitters based on polarization-dependent coupling.",

keywords = "Birefringence, Couplers, Holey fiber, Optical fibers, Photonic crystal fiber (PCF), Polarization splitter, Polarization-dependent coupling",

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T1 - PCF-based polarization splitters with simplified structures

AU - Zhang, Lin

AU - Yang, Changxi

AU - Yu, Changyuan

AU - Luo, Ting

AU - Willner, Alan E.

PY - 2005/11/1

Y1 - 2005/11/1

N2 - We propose novel polarization splitters based on photonic crystal fibers (PCFs), in which the cores of the splitters are nearly nonbirefringent. Different from conventional fiber-based polarization splitters, the birefringence in the new splitters results mainly from narrow silica regions physically connecting the two cores. This means that polarization splitting can be achieved without employing highly birefringent cores, which provides a possibility to greatly simplify the structures of the PCF-based polarization splitters and make them more practical. A 5-mm-long splitter with an extinction ratio of 20 dB has been obtained. We also discuss how the silica regions influence coupling characteristics of the dual-core PCFs and present a design guidance for the polarization splitters based on polarization-dependent coupling.

AB - We propose novel polarization splitters based on photonic crystal fibers (PCFs), in which the cores of the splitters are nearly nonbirefringent. Different from conventional fiber-based polarization splitters, the birefringence in the new splitters results mainly from narrow silica regions physically connecting the two cores. This means that polarization splitting can be achieved without employing highly birefringent cores, which provides a possibility to greatly simplify the structures of the PCF-based polarization splitters and make them more practical. A 5-mm-long splitter with an extinction ratio of 20 dB has been obtained. We also discuss how the silica regions influence coupling characteristics of the dual-core PCFs and present a design guidance for the polarization splitters based on polarization-dependent coupling.

KW - Birefringence

KW - Couplers

KW - Holey fiber

KW - Optical fibers

KW - Photonic crystal fiber (PCF)

KW - Polarization splitter

KW - Polarization-dependent coupling

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U2 - 10.1109/JLT.2005.857779

DO - 10.1109/JLT.2005.857779

M3 - Journal article

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SP - 3558

EP - 3565

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 11

ER -

PCF-based polarization splitters with simplified structures

Abstract

Keywords

ASJC Scopus subject areas

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