Polarization rotators in add-drop filter systems with double-ring resonators

Guoqiang Chen; Lixue Chen; Weiqiang Ding; Fangkui Sun; Rui Feng

doi:10.1109/LPT.2014.2310251

Polarization rotators in add-drop filter systems with double-ring resonators

Guoqiang Chen
, Lixue Chen
, Weiqiang Ding
, Fangkui Sun
, Rui Feng

School of Physics

Harbin Institute of Technology

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

6 Scopus citations

Abstract

A design of highly integrated polarization rotators (PRs) with double-ring resonators in add-drop filter systems is demonstrated theoretically. Based on mode-evolution theory and 3D finite-difference time-domain simulation, two vertically stacked microrings with dislocation are designed and optimized, which efficiently decreases the size of PR to a double-ring structure with a radius of <3.5 μm for the wavelength of 1.55 μm in a silicon-on-isolator system. Numerical simulations obtain an extinction ratio (ER) of -22 dB and an insertion loss of 0.07 dB with practical material parameters. This PR combines the advantages of the periodic spectrum of ring resonators and add-drop filtering functionality. The method and result presented here can be valuable for applications in polarization-diversity circuits.

Original language	English
Article number	6758344
Pages (from-to)	976-979
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	26
Issue number	10
DOIs	https://doi.org/10.1109/LPT.2014.2310251
State	Published - 15 May 2014

Keywords

Integrated optics
microcavity
polarization rotators
resonators

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10.1109/LPT.2014.2310251

Cite this

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title = "Polarization rotators in add-drop filter systems with double-ring resonators",

abstract = "A design of highly integrated polarization rotators (PRs) with double-ring resonators in add-drop filter systems is demonstrated theoretically. Based on mode-evolution theory and 3D finite-difference time-domain simulation, two vertically stacked microrings with dislocation are designed and optimized, which efficiently decreases the size of PR to a double-ring structure with a radius of <3.5 μm for the wavelength of 1.55 μm in a silicon-on-isolator system. Numerical simulations obtain an extinction ratio (ER) of -22 dB and an insertion loss of 0.07 dB with practical material parameters. This PR combines the advantages of the periodic spectrum of ring resonators and add-drop filtering functionality. The method and result presented here can be valuable for applications in polarization-diversity circuits.",

keywords = "Integrated optics, microcavity, polarization rotators, resonators",

author = "Guoqiang Chen and Lixue Chen and Weiqiang Ding and Fangkui Sun and Rui Feng",

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T1 - Polarization rotators in add-drop filter systems with double-ring resonators

AU - Chen, Guoqiang

AU - Chen, Lixue

AU - Ding, Weiqiang

AU - Sun, Fangkui

AU - Feng, Rui

PY - 2014/5/15

Y1 - 2014/5/15

N2 - A design of highly integrated polarization rotators (PRs) with double-ring resonators in add-drop filter systems is demonstrated theoretically. Based on mode-evolution theory and 3D finite-difference time-domain simulation, two vertically stacked microrings with dislocation are designed and optimized, which efficiently decreases the size of PR to a double-ring structure with a radius of <3.5 μm for the wavelength of 1.55 μm in a silicon-on-isolator system. Numerical simulations obtain an extinction ratio (ER) of -22 dB and an insertion loss of 0.07 dB with practical material parameters. This PR combines the advantages of the periodic spectrum of ring resonators and add-drop filtering functionality. The method and result presented here can be valuable for applications in polarization-diversity circuits.

AB - A design of highly integrated polarization rotators (PRs) with double-ring resonators in add-drop filter systems is demonstrated theoretically. Based on mode-evolution theory and 3D finite-difference time-domain simulation, two vertically stacked microrings with dislocation are designed and optimized, which efficiently decreases the size of PR to a double-ring structure with a radius of <3.5 μm for the wavelength of 1.55 μm in a silicon-on-isolator system. Numerical simulations obtain an extinction ratio (ER) of -22 dB and an insertion loss of 0.07 dB with practical material parameters. This PR combines the advantages of the periodic spectrum of ring resonators and add-drop filtering functionality. The method and result presented here can be valuable for applications in polarization-diversity circuits.

KW - Integrated optics

KW - microcavity

KW - polarization rotators

KW - resonators

UR - https://www.scopus.com/pages/publications/84900429681

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DO - 10.1109/LPT.2014.2310251

M3 - 文章

AN - SCOPUS:84900429681

SN - 1041-1135

VL - 26

SP - 976

EP - 979

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 10

M1 - 6758344

ER -

Polarization rotators in add-drop filter systems with double-ring resonators

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