Novel mid-IR quantum cascade laser waveguide coupling techniques

David Shyu; Fow-Sen Choa; Xing Chen; Sudhir Trivedi

doi:10.1117/12.875832

16 February 2011 Novel mid-IR quantum cascade laser waveguide coupling techniques

David Shyu, Fow-Sen Choa, Xing Chen, Sudhir Trivedi

Proceedings Volume 7953, Novel In-Plane Semiconductor Lasers X; 79531T (2011) https://doi.org/10.1117/12.875832
Event: SPIE OPTO, 2011, San Francisco, California, United States

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.

Citation Download Citation

David Shyu, Fow-Sen Choa, Xing Chen, and Sudhir Trivedi "Novel mid-IR quantum cascade laser waveguide coupling techniques", Proc. SPIE 7953, Novel In-Plane Semiconductor Lasers X, 79531T (16 February 2011); https://doi.org/10.1117/12.875832

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