Integrated shadow mask for sampled Bragg gratings in chalcogenide (As 2S3) planar waveguides

Duk Yong Choi; Steve Madden; Andrei Rode; Rongping Wang; Barry Luther-Davies; Neil J. Baker; Benjamin J. Eggleton

doi:10.1364/OE.15.007708

Integrated shadow mask for sampled Bragg gratings in chalcogenide (As ₂S₃) planar waveguides

Duk Yong Choi^*, Steve Madden, Andrei Rode, Rongping Wang, Barry Luther-Davies, Neil J. Baker, Benjamin J. Eggleton

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

We have developed a new approach for producing high performance sampled Bragg gratings in planar waveguides as a platform for WDM on-chip signal processing in a compact integrated device. Using this method we have successfully integrated a shadow mask directly onto a chalcogenide (As ₂S₃) waveguide using standard semiconductor processing, eliminating misalignment errors between the mask and waveguide that otherwise occur. Through this integrated mask we demonstrate a very low duty cycle sampled Bragg grating with very narrow rejection peaks and spanning a very broad bandwidth.

Original language	English
Pages (from-to)	7708-7712
Number of pages	5
Journal	Optics Express
Volume	15
Issue number	12
DOIs	https://doi.org/10.1364/OE.15.007708
Publication status	Published - 11 Jun 2007

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AU - Choi, Duk Yong

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AU - Rode, Andrei

AU - Wang, Rongping

AU - Luther-Davies, Barry

AU - Baker, Neil J.

AU - Eggleton, Benjamin J.

PY - 2007/6/11

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AB - We have developed a new approach for producing high performance sampled Bragg gratings in planar waveguides as a platform for WDM on-chip signal processing in a compact integrated device. Using this method we have successfully integrated a shadow mask directly onto a chalcogenide (As 2S3) waveguide using standard semiconductor processing, eliminating misalignment errors between the mask and waveguide that otherwise occur. Through this integrated mask we demonstrate a very low duty cycle sampled Bragg grating with very narrow rejection peaks and spanning a very broad bandwidth.

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Integrated shadow mask for sampled Bragg gratings in chalcogenide (As ₂S₃) planar waveguides

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