TY - GEN
T1 - New design strategies for multifunctional and inexpensive quantum cascade lasers
AU - Slivken, Steven
AU - Razeghi, Manijeh
N1 - Funding Information:
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.
Publisher Copyright:
© 2019 SPIE.
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
KW - Electronic beam steering
KW - Photonic integrated circuit
KW - Quantum cascade laser
KW - Surface-emitting laser
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U2 - 10.1117/12.2514627
DO - 10.1117/12.2514627
M3 - Conference contribution
AN - SCOPUS:85068156137
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Quantum Sensing and Nano Electronics and Photonics XVI
A2 - Razeghi, Manijeh
A2 - Lewis, Jay S.
A2 - Tournie, Eric
A2 - Khodaparast, Giti A.
PB - SPIE
T2 - Quantum Sensing and Nano Electronics and Photonics XVI 2019
Y2 - 3 February 2019 through 7 February 2019
ER -