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Proceedings Paper

Mid-IR quantum cascade laser mode coupling in hollow-core, fiber-optic waveguides with single-mode beam delivery
Author(s): P. Patimisco; A. Sampaolo; J. M. Kriesel; G. Scamarcio; V. Spagnolo
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Paper Abstract

We report a theoretical and experimental study of laser coupling in hollow-core, fiber-optic waveguides with small-bore diameters of d=200 μm. For the experiments we utilized three mid-infrared quantum cascade lasers with different emission wavelength, which were coupled into the waveguides using lenses with focal lengths in the range 25-76 mm. Measurements of the output beam profiles and propagation losses were obtained as a function of the coupling conditions. With appropriate coupling parameters, single mode beam delivery can be obtained for all laser wavelengths, ranging from λ ~ 5.4 to 10.5 μm.

Paper Details

Date Published: 8 February 2015
PDF: 9 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 937016 (8 February 2015); doi: 10.1117/12.2078960
Show Author Affiliations
P. Patimisco, Rice Univ. (United States)
Politecnico di Bari, CNR, Univ. degli Studi di Bari (Italy)
A. Sampaolo, Rice Univ. (United States)
Politecnico di Bari, CNR, Univ. degli Studi di Bari (Italy)
J. M. Kriesel, Opto-Knowledge Systems, Inc. (United States)
G. Scamarcio, Politecnico di Bari, CNR, Univ. degli Studi di Bari (Italy)
V. Spagnolo, Politecnico di Bari, CNR, Univ. degli Studi di Bari (Italy)


Published in SPIE Proceedings Vol. 9370:
Quantum Sensing and Nanophotonic Devices XII
Manijeh Razeghi; Eric Tournié; Gail J. Brown, Editor(s)

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