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Open AccessArticle

Interband Cascade Photonic Integrated Circuits on Native III-V Chip

1
Naval Research Laboratory, Code 5613, Washington, DC 20375, USA
2
Jacobs Corporation, Hanover, MD 21076, USA
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(2), 599; https://doi.org/10.3390/s21020599
Received: 4 December 2020 / Revised: 13 January 2021 / Accepted: 14 January 2021 / Published: 16 January 2021
(This article belongs to the Special Issue Mid-Infrared Sensors and Applications)
We describe how a midwave infrared photonic integrated circuit (PIC) that combines lasers, detectors, passive waveguides, and other optical elements may be constructed on the native GaSb substrate of an interband cascade laser (ICL) structure. The active and passive building blocks may be used, for example, to fabricate an on-chip chemical detection system with a passive sensing waveguide that evanescently couples to an ambient sample gas. A variety of highly compact architectures are described, some of which incorporate both the sensing waveguide and detector into a laser cavity defined by two high-reflectivity cleaved facets. We also describe an edge-emitting laser configuration that optimizes stability by minimizing parasitic feedback from external optical elements, and which can potentially operate with lower drive power than any mid-IR laser now available. While ICL-based PICs processed on GaSb serve to illustrate the various configurations, many of the proposed concepts apply equally to quantum-cascade-laser (QCL)-based PICs processed on InP, and PICs that integrate III-V lasers and detectors on silicon. With mature processing, it should become possible to mass-produce hundreds of individual PICs on the same chip which, when singulated, will realize chemical sensing by an extremely compact and inexpensive package. View Full-Text
Keywords: interband cascade laser; photonic integrated circuit; chemical sensing; midwave infrared interband cascade laser; photonic integrated circuit; chemical sensing; midwave infrared
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MDPI and ACS Style

Meyer, J.R.; Kim, C.S.; Kim, M.; Canedy, C.L.; Merritt, C.D.; Bewley, W.W.; Vurgaftman, I. Interband Cascade Photonic Integrated Circuits on Native III-V Chip. Sensors 2021, 21, 599. https://doi.org/10.3390/s21020599

AMA Style

Meyer JR, Kim CS, Kim M, Canedy CL, Merritt CD, Bewley WW, Vurgaftman I. Interband Cascade Photonic Integrated Circuits on Native III-V Chip. Sensors. 2021; 21(2):599. https://doi.org/10.3390/s21020599

Chicago/Turabian Style

Meyer, Jerry R.; Kim, Chul S.; Kim, Mijin; Canedy, Chadwick L.; Merritt, Charles D.; Bewley, William W.; Vurgaftman, Igor. 2021. "Interband Cascade Photonic Integrated Circuits on Native III-V Chip" Sensors 21, no. 2: 599. https://doi.org/10.3390/s21020599

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