InP-based polarization rotator-splitter for mid-infrared photonic integration circuits

Chi-Jui Chung; Jason Midkiff; Kyoung Min Yoo; Ali Rostamian; Joel Guo; Ray T. Chen; Swapnajit Chakravarty

doi:10.1063/1.5055863

AIP Advances (Jan 2019)

InP-based polarization rotator-splitter for mid-infrared photonic integration circuits

Chi-Jui Chung,
Jason Midkiff,
Kyoung Min Yoo,
Ali Rostamian,
Joel Guo,
Ray T. Chen,
Swapnajit Chakravarty

Affiliations

Chi-Jui Chung: Microelectronic Research Center, Department of Electronical and Computer Engineering, The University of Texas, Austin, Texas 78758, USA
Jason Midkiff: Omega Optics, Inc., 8500 Shoal Creek Blvd., Austin, Texas 78757, USA
Kyoung Min Yoo: Microelectronic Research Center, Department of Electronical and Computer Engineering, The University of Texas, Austin, Texas 78758, USA
Ali Rostamian: Microelectronic Research Center, Department of Electronical and Computer Engineering, The University of Texas, Austin, Texas 78758, USA
Joel Guo: Microelectronic Research Center, Department of Electronical and Computer Engineering, The University of Texas, Austin, Texas 78758, USA
Ray T. Chen: Microelectronic Research Center, Department of Electronical and Computer Engineering, The University of Texas, Austin, Texas 78758, USA
Swapnajit Chakravarty: Omega Optics, Inc., 8500 Shoal Creek Blvd., Austin, Texas 78757, USA

DOI: https://doi.org/10.1063/1.5055863
Journal volume & issue: Vol. 9, no. 1
pp. 015303 – 015303-6

Abstract

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We design and experimentally demonstrate the propagation loss of waveguides and the operation of a single-step etched polarization rotator-splitter (PRS) in low index contrast InGaAs-InP material system at 6.15 μm. Propagation losses 4.19 dB/cm for TM mode and 3.25 dB/cm for TE mode are measured. The designed PRS can achieve near 100% conversion efficiency. This study enables the possibility of monolithic integration of quantum cascade devices with TM-polarized characteristics and TE-guiding two-dimensional slotted photonic crystal waveguide gas sensors for on-chip monolithic absorption spectroscopy.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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