Pinto, D., Kinjalk, K., Meguekam, A., Bahriz, M., & Baranov, A. (2023). Tapered quantum cascade lasers in the long-wavelength mid infrared region. In M. Razeghi, G. A. Khodaparast, & M. S. Vitiello (Eds.), Quantum Sensing and Nano Electronics and Photonics XIX. https://doi.org/10.1117/12.2649669
Quantum Sensing and Nano Electronics and Photonics XIX
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ISBN:
9781510659667
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Volume:
12430
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Date (published):
2023
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Event name:
Photonics West 2023
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Event date:
28-Jan-2023 - 2-Feb-2023
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Event place:
San Francisco, CA, United States of America (the)
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Number of Pages:
4
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Keywords:
long-wavelength infrared; Quantum Cascade Laser; small slow-axis divergence; Tapered lasers
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Abstract:
We present an investigation on the electrical and optical properties of tapered quantum cascade lasers emitting at 14-15 μm, based on the InAs/AlSb system. In tapered lasers the active zone volume is increased to obtain higher optical power outputs without degrading the beam quality. Devices with three different taper angles of 1°, 2° and 3° were examined in terms of electrical, optical, and spectral properties and were compared with conventional ridge waveguide lasers.
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Research facilities:
Analytical Instrumentation Center Pilotfabrik Röntgenzentrum TRIGA Mark II-Nuklearreaktor Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie Vienna Scientific Cluster Zentrum für Kernspinresonanzspektroskopie Zentrum für Mikro & Nanostrukturen
