TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling

Andreas Wieczorek; Brendan Roycroft; Frank H. Peters; Brian Corbett

doi:10.1007/s11082-011-9508-1

TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling

University College Cork

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

Abstract

A new passive TE/TM-mode polarization filter for an InP system based on an asymmetric twin waveguide and resonant coupling is investigated. Linear taper sections with different taper angles are introduced to couple between the two vertically separated waveguides. The underlying waveguide is designed to enable direct edge coupling from an optical fiber. At a wavelength of 1.55μm power extinction ratios of 20 dB for the TE- and more than 10dB for the TM-polarization are reported for devices shorter than 400 μm. An increased extinction ratio can be obtained by concatenating structures. Furthermore, we show this concept can be expanded to a polarization splitter.

Original language	English
Pages (from-to)	175-181
Number of pages	7
Journal	Optical and Quantum Electronics
Volume	44
Issue number	3-5
DOIs	https://doi.org/10.1007/s11082-011-9508-1
Publication status	Published - Jun 2012

Keywords

Asymmetric twin guide
Polarization filter
Resonant coupling

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10.1007/s11082-011-9508-1

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title = "TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling",

abstract = "A new passive TE/TM-mode polarization filter for an InP system based on an asymmetric twin waveguide and resonant coupling is investigated. Linear taper sections with different taper angles are introduced to couple between the two vertically separated waveguides. The underlying waveguide is designed to enable direct edge coupling from an optical fiber. At a wavelength of 1.55μm power extinction ratios of 20 dB for the TE- and more than 10dB for the TM-polarization are reported for devices shorter than 400 μm. An increased extinction ratio can be obtained by concatenating structures. Furthermore, we show this concept can be expanded to a polarization splitter.",

keywords = "Asymmetric twin guide, Polarization filter, Resonant coupling",

author = "Andreas Wieczorek and Brendan Roycroft and Peters, \{Frank H.\} and Brian Corbett",

year = "2012",

month = jun,

doi = "10.1007/s11082-011-9508-1",

language = "English",

volume = "44",

pages = "175--181",

journal = "Optical and Quantum Electronics",

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T1 - TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling

AU - Wieczorek, Andreas

AU - Roycroft, Brendan

AU - Peters, Frank H.

AU - Corbett, Brian

PY - 2012/6

Y1 - 2012/6

N2 - A new passive TE/TM-mode polarization filter for an InP system based on an asymmetric twin waveguide and resonant coupling is investigated. Linear taper sections with different taper angles are introduced to couple between the two vertically separated waveguides. The underlying waveguide is designed to enable direct edge coupling from an optical fiber. At a wavelength of 1.55μm power extinction ratios of 20 dB for the TE- and more than 10dB for the TM-polarization are reported for devices shorter than 400 μm. An increased extinction ratio can be obtained by concatenating structures. Furthermore, we show this concept can be expanded to a polarization splitter.

AB - A new passive TE/TM-mode polarization filter for an InP system based on an asymmetric twin waveguide and resonant coupling is investigated. Linear taper sections with different taper angles are introduced to couple between the two vertically separated waveguides. The underlying waveguide is designed to enable direct edge coupling from an optical fiber. At a wavelength of 1.55μm power extinction ratios of 20 dB for the TE- and more than 10dB for the TM-polarization are reported for devices shorter than 400 μm. An increased extinction ratio can be obtained by concatenating structures. Furthermore, we show this concept can be expanded to a polarization splitter.

KW - Asymmetric twin guide

KW - Polarization filter

KW - Resonant coupling

UR - https://www.scopus.com/pages/publications/84861893667

U2 - 10.1007/s11082-011-9508-1

DO - 10.1007/s11082-011-9508-1

M3 - Article

AN - SCOPUS:84861893667

SN - 0306-8919

VL - 44

SP - 175

EP - 181

JO - Optical and Quantum Electronics

JF - Optical and Quantum Electronics

IS - 3-5

ER -

TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling

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Keywords

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