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Proceedings Paper

Hollow-core waveguide for single-mode laser beam propagation in the spectral range of 3.7-7.3 μm
Author(s): P. Patimisco; L. Mihai; M. Giglio; A. Sampaolo; P. P. Calabrese; J. M. Kriesel; D. Sporea; G. Scamarcio; F. K. Tittel; V. Spagnolo
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Paper Abstract

We report the first demonstration of single-mode laser beam delivery in hollow-core waveguides (HCWs) operating in the 3.7-7.3 μm spectral range. We investigated the transmission properties of HCWs with 200 μm bore diameter and internal coatings properly designed to enhance the spectral response in the spectral range of 3-12 μm. We achieved single mode output throughout the 3.7-7.3 μm range. We measured a coupling efficiency < 90% and transmission losses as low as 1 dB, when using a 15 cm-long fiber at 3.7 μm under optimized coupling conditions between input beam and HCW.

Paper Details

Date Published: 13 February 2016
PDF: 8 pages
Proc. SPIE 9755, Quantum Sensing and Nano Electronics and Photonics XIII, 97552M (13 February 2016); doi: 10.1117/12.2209533
Show Author Affiliations
P. Patimisco, Univ. e Politecnico di Bari (Italy)
L. Mihai, National Institute for Laser, Plasma and Radiation Physics (Romania)
M. Giglio, Univ. e Politecnico di Bari (Italy)
A. Sampaolo, Univ. e Politecnico di Bari (Italy)
P. P. Calabrese, Univ. e Politecnico di Bari (Italy)
J. M. Kriesel, Opto-Knowledge Systems, Inc. (United States)
D. Sporea, National Institute for Laser, Plasma and Radiation Physics (Romania)
G. Scamarcio, Univ. e Politecnico di Bari (Italy)
F. K. Tittel, Rice Univ. (United States)
V. Spagnolo, Univ. e Politecnico di Bari (Italy)


Published in SPIE Proceedings Vol. 9755:
Quantum Sensing and Nano Electronics and Photonics XIII
Manijeh Razeghi, Editor(s)

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