Abstract
This manuscript describes some of the new advances in active mid-infrared photonic integrated circuits enabled by new quantum cascade laser technologies. This includes monolithic beam steering which was achieved via the integration of a widely tunable QCL and a tapered grating outcoupler. A record 17.9 degrees of steering with a low divergence beam (0.5 degrees) was achieved. In addition, the use of surface emitting architectures is proposed as a means to reduce the manufacturing cost of next-generation QCLs. A reflective outcoupler is demonstrated which can allow for stable surface emission from a quantum cascade laser and has potential for cost-effective wafer-scale manufacturing. This outcoupler is integrated with an amplified, electrically tunable laser architecture to demonstrate high power surface emission at a wavelength near 4.9 μm. Single mode peak power up to 6.7 W is demonstrated with >6 W available over a 90 cm-1 (215 nm) spectral range. All of this is achieved while maintaining a high quality output beam, similar to a standard edge emitter.
Original language | English (US) |
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Title of host publication | Quantum Sensing and Nano Electronics and Photonics XVI |
Editors | Manijeh Razeghi, Jay S. Lewis, Eric Tournie, Giti A. Khodaparast |
Publisher | SPIE |
ISBN (Electronic) | 9781510624948 |
DOIs | |
State | Published - 2019 |
Event | Quantum Sensing and Nano Electronics and Photonics XVI 2019 - San Francisco, United States Duration: Feb 3 2019 → Feb 7 2019 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 10926 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Quantum Sensing and Nano Electronics and Photonics XVI 2019 |
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Country/Territory | United States |
City | San Francisco |
Period | 2/3/19 → 2/7/19 |
Funding
This work is partially supported by Naval Air Systems Command (grant N68936-17-C-0063) and the Office of Naval Research (grant N00014-17-1-2836). Any opinions, findings and conclusions or recommendations expressed in this document are those of the author(s) and do not necessarily reflect the views of Naval Air Systems Command or the Office of Naval Research. The authors would like to acknowledge the encouragement and support of all the involved program managers, especially Dr. K. K. Law.
Keywords
- Electronic beam steering
- Photonic integrated circuit
- Quantum cascade laser
- Surface-emitting laser
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering