Optimized coupler design for slot waveguide ring resonators

Michael John M.J. Strain; Marc M. Sorel

doi:10.1109/LPT.2013.2290693

Optimized coupler design for slot waveguide ring resonators

Michael John M.J. Strain, Marc M. Sorel

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

1 Citation (Scopus)

Abstract

The highly sensitive nature of slot waveguide micro-resonator power couplers is discussed with respect to the resonator geometry and evanescent coupler design. A modified, tri-bar, evanescent field coupler is demonstrated that shows reduced sensitivity to ring radius as compared with conventional couplers, while maintaining a compact beat-length of only a few micrometers. With the measurement of bending losses of curved slot waveguides, critically coupled ring resonators were designed and fabricated, exhibiting a resonance extinction exceeding 22 dB.

Original language	English
Pages (from-to)	224-226
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	26
Issue number	3
DOIs	https://doi.org/10.1109/LPT.2013.2290693
Publication status	Published - 1 Feb 2014

Keywords

integrated optics
optical design
optical device fabrication
optical resonators

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10.1109/LPT.2013.2290693

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abstract = "The highly sensitive nature of slot waveguide micro-resonator power couplers is discussed with respect to the resonator geometry and evanescent coupler design. A modified, tri-bar, evanescent field coupler is demonstrated that shows reduced sensitivity to ring radius as compared with conventional couplers, while maintaining a compact beat-length of only a few micrometers. With the measurement of bending losses of curved slot waveguides, critically coupled ring resonators were designed and fabricated, exhibiting a resonance extinction exceeding 22 dB.",

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AB - The highly sensitive nature of slot waveguide micro-resonator power couplers is discussed with respect to the resonator geometry and evanescent coupler design. A modified, tri-bar, evanescent field coupler is demonstrated that shows reduced sensitivity to ring radius as compared with conventional couplers, while maintaining a compact beat-length of only a few micrometers. With the measurement of bending losses of curved slot waveguides, critically coupled ring resonators were designed and fabricated, exhibiting a resonance extinction exceeding 22 dB.

KW - integrated optics

KW - optical design

KW - optical device fabrication

KW - optical resonators

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Optimized coupler design for slot waveguide ring resonators

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