Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths

Yi Zou; Harish Subbaraman; Swapnajit Chakravarty; Xiaochuan Xu; Amir Hosseini; Wei Cheng Lai; Parker Wray; Ray T. Chen

doi:10.1364/OL.39.003070

Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths

Yi Zou^*
, Harish Subbaraman
, Swapnajit Chakravarty
, Xiaochuan Xu
, Amir Hosseini
, Wei Cheng Lai
, Parker Wray
, Ray T. Chen

^*Corresponding author for this work

University of Texas at Austin
Omega Optics Inc.

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

66 Scopus citations

Abstract

We demonstrate subwavelength bidirectional grating (SWG) coupled slot waveguide fabricated in silicon-onsapphire for transverse electric polarized wave operation at 3.4 μm wavelength. Coupling efficiency of 29% for SWG coupler is experimentally achieved. Propagation loss of 11 dB?cm has been experimentally obtained for slot waveguides. Two-step taper mode converters with an insertion loss of 0.13 dB are used to gradually convert the strip waveguide mode into slot waveguide mode.

Original language	English
Pages (from-to)	3070-3073
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	10
DOIs	https://doi.org/10.1364/OL.39.003070
State	Published - 15 May 2014
Externally published	Yes

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title = "Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths",

abstract = "We demonstrate subwavelength bidirectional grating (SWG) coupled slot waveguide fabricated in silicon-onsapphire for transverse electric polarized wave operation at 3.4 μm wavelength. Coupling efficiency of 29\% for SWG coupler is experimentally achieved. Propagation loss of 11 dB?cm has been experimentally obtained for slot waveguides. Two-step taper mode converters with an insertion loss of 0.13 dB are used to gradually convert the strip waveguide mode into slot waveguide mode.",

author = "Yi Zou and Harish Subbaraman and Swapnajit Chakravarty and Xiaochuan Xu and Amir Hosseini and Lai, \{Wei Cheng\} and Parker Wray and Chen, \{Ray T.\}",

year = "2014",

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doi = "10.1364/OL.39.003070",

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T1 - Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths

AU - Zou, Yi

AU - Subbaraman, Harish

AU - Chakravarty, Swapnajit

AU - Xu, Xiaochuan

AU - Hosseini, Amir

AU - Lai, Wei Cheng

AU - Wray, Parker

AU - Chen, Ray T.

PY - 2014/5/15

Y1 - 2014/5/15

N2 - We demonstrate subwavelength bidirectional grating (SWG) coupled slot waveguide fabricated in silicon-onsapphire for transverse electric polarized wave operation at 3.4 μm wavelength. Coupling efficiency of 29% for SWG coupler is experimentally achieved. Propagation loss of 11 dB?cm has been experimentally obtained for slot waveguides. Two-step taper mode converters with an insertion loss of 0.13 dB are used to gradually convert the strip waveguide mode into slot waveguide mode.

AB - We demonstrate subwavelength bidirectional grating (SWG) coupled slot waveguide fabricated in silicon-onsapphire for transverse electric polarized wave operation at 3.4 μm wavelength. Coupling efficiency of 29% for SWG coupler is experimentally achieved. Propagation loss of 11 dB?cm has been experimentally obtained for slot waveguides. Two-step taper mode converters with an insertion loss of 0.13 dB are used to gradually convert the strip waveguide mode into slot waveguide mode.

UR - https://www.scopus.com/pages/publications/84901052862

U2 - 10.1364/OL.39.003070

DO - 10.1364/OL.39.003070

M3 - 文章

AN - SCOPUS:84901052862

SN - 0146-9592

VL - 39

SP - 3070

EP - 3073

JO - Optics Letters

JF - Optics Letters

IS - 10

ER -

Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths

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