Authors

J. Chiles; M. Malinowski; A. Rao; S. Novak; K. Richardson;S. Fathpour

Comments

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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

GE-SB-S; WAVE-GUIDES; STRUCTURAL-PROPERTIES; FABRICATION; GLASSES; FILMS; Physics, Applied

Abstract

A chlorine plasma etching-based method for the fabrication of high-performance chalcogenide-based integrated photonics on silicon substrates is presented. By optimizing the etching conditions, chlorine plasma is employed to produce extremely low-roughness etched sidewalls on waveguides with minimal penalty to propagation loss. Using this fabrication method, microring resonators with record-high intrinsic Q-factors as high as 450 000 and a corresponding propagation loss as low as 0.42 dB/cm are demonstrated in submicron chalcogenide waveguides. Furthermore, the developed chlorine plasma etching process is utilized to demonstrate fiber-to-waveguide grating couplers in chalcogenide photonics with high power coupling efficiency of 37% for transverse-electric polarized modes.

Journal Title

Applied Physics Letters

Volume

106

Issue/Number

11

Publication Date

1-1-2015

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000351595500010

ISSN

0003-6951

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