Novel designs for integrating YIG/air photonic crystal slab polarizers with waveguide Faraday rotators

Samir K. Mondal; Bethanie J Stadler

doi:10.1109/LPT.2004.838156

Novel designs for integrating YIG/air photonic crystal slab polarizers with waveguide Faraday rotators

Samir K. Mondal, Bethanie J Stadler

Electrical and Computer Engineering

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

27 Scopus citations

Abstract

Photonic crystal slab waveguides (PCSWs), based on the novel magnetooptic material, yttrium iron garnet (YIG), have been designed in order to enable fully integrated/optical isolators. The PCSWs possess fundamental bandgaps for even (transverse-electric (TE)-like) modes around the wavelength of 1.33 μm. Propagation losses for both the TE-like and transverse-magnetic (TM)-like polarizations with various orientations have been investigated numerically using partial-wave analysis and a three-dimensional finite-difference time-domain method. The resulting PCSW designs can be used to isolate TE-like modes from TM-like modes and vice versa with isolation ratios of - 60 and - 40 dB, respectively. One of the main benefits of these designs is that they provide interface-free polarizers for the garnet waveguides. The designs can easily be extended to 1.55 μm for further versatility.

Original language	English (US)
Pages (from-to)	127-129
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	17
Issue number	1
DOIs	https://doi.org/10.1109/LPT.2004.838156
State	Published - Jan 2005

Keywords

Integrated optical isolator
Magnetooptic material
Photonic bandgap
Photonic crystal (PC)

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10.1109/LPT.2004.838156

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abstract = "Photonic crystal slab waveguides (PCSWs), based on the novel magnetooptic material, yttrium iron garnet (YIG), have been designed in order to enable fully integrated/optical isolators. The PCSWs possess fundamental bandgaps for even (transverse-electric (TE)-like) modes around the wavelength of 1.33 μm. Propagation losses for both the TE-like and transverse-magnetic (TM)-like polarizations with various orientations have been investigated numerically using partial-wave analysis and a three-dimensional finite-difference time-domain method. The resulting PCSW designs can be used to isolate TE-like modes from TM-like modes and vice versa with isolation ratios of - 60 and - 40 dB, respectively. One of the main benefits of these designs is that they provide interface-free polarizers for the garnet waveguides. The designs can easily be extended to 1.55 μm for further versatility.",

keywords = "Integrated optical isolator, Magnetooptic material, Photonic bandgap, Photonic crystal (PC)",

author = "Mondal, {Samir K.} and Stadler, {Bethanie J}",

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AU - Mondal, Samir K.

AU - Stadler, Bethanie J

PY - 2005/1

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N2 - Photonic crystal slab waveguides (PCSWs), based on the novel magnetooptic material, yttrium iron garnet (YIG), have been designed in order to enable fully integrated/optical isolators. The PCSWs possess fundamental bandgaps for even (transverse-electric (TE)-like) modes around the wavelength of 1.33 μm. Propagation losses for both the TE-like and transverse-magnetic (TM)-like polarizations with various orientations have been investigated numerically using partial-wave analysis and a three-dimensional finite-difference time-domain method. The resulting PCSW designs can be used to isolate TE-like modes from TM-like modes and vice versa with isolation ratios of - 60 and - 40 dB, respectively. One of the main benefits of these designs is that they provide interface-free polarizers for the garnet waveguides. The designs can easily be extended to 1.55 μm for further versatility.

AB - Photonic crystal slab waveguides (PCSWs), based on the novel magnetooptic material, yttrium iron garnet (YIG), have been designed in order to enable fully integrated/optical isolators. The PCSWs possess fundamental bandgaps for even (transverse-electric (TE)-like) modes around the wavelength of 1.33 μm. Propagation losses for both the TE-like and transverse-magnetic (TM)-like polarizations with various orientations have been investigated numerically using partial-wave analysis and a three-dimensional finite-difference time-domain method. The resulting PCSW designs can be used to isolate TE-like modes from TM-like modes and vice versa with isolation ratios of - 60 and - 40 dB, respectively. One of the main benefits of these designs is that they provide interface-free polarizers for the garnet waveguides. The designs can easily be extended to 1.55 μm for further versatility.

KW - Integrated optical isolator

KW - Magnetooptic material

KW - Photonic bandgap

KW - Photonic crystal (PC)

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Novel designs for integrating YIG/air photonic crystal slab polarizers with waveguide Faraday rotators

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