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Proceedings Paper

Novel mid-IR quantum cascade laser waveguide coupling techniques
Author(s): David Shyu; Fow-Sen Choa; Xing Chen; Sudhir Trivedi
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Paper Abstract

Signal modulations and coherent signal detections are important for both communications and remote sensing applications. Photonic integration reduces size, weight, cost, and improves the performance of these systems as demonstrated by integrated DFB-laser modulators, receivers and transceivers at near-IR wavelength regions. However, due to the difficulties of waveguide coupling, photonic integration in the mid-IR wavelength range is under-developed. We developed a technique that can monitor mid-IR coupling based on the negative photoconductivity in quantum cascaded (QC) materials that can simplify and optimize laser waveguide coupling in the mid-IR wavelength range.

Paper Details

Date Published: 16 February 2011
PDF: 7 pages
Proc. SPIE 7953, Novel In-Plane Semiconductor Lasers X, 79531T (16 February 2011); doi: 10.1117/12.875832
Show Author Affiliations
David Shyu, Univ. of Maryland, Baltimore County (United States)
Fow-Sen Choa, Univ. of Maryland, Baltimore County (United States)
Xing Chen, Univ. of Maryland, Baltimore County (United States)
Sudhir Trivedi, Brimrose Corp. (United States)

Published in SPIE Proceedings Vol. 7953:
Novel In-Plane Semiconductor Lasers X
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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