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Ultralow loss hollow-core conjoined-tube negative-curvature fiber
Author(s): Shou-Fei Gao; Ying-Ying Wang; Wei Ding; Yi-Feng Hong; Pu Wang
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Paper Abstract

Hollow-core fiber (HCF) has found plenty of interdisciplinary applications in areas ranging from ultra-intense pulse delivery, single-cycle pulse generation, low latency optical communication, UV light sources, mid-IR gas lasers to biochemical sensing, quantum optics and mid-IR to Terahertz waveguides. These applications calls for better performance HCF, especially in loss, bandwidth and mode quality. Here we present a new hollow-core fiber with conjoined-tubes in the cladding and a negative-curvature core shape. It exhibits a minimum transmission loss of 2 dB/km at 1512 nm and a <16 dB/km bandwidth covering the O, E, S, C, L telecom bands. The debut of this conjoined-tube hollow-core fiber, with combined merits of ultralow loss, broad bandwidth, low bending loss, high mode quality and simple structure heralds a new opportunity to fully unleash the potential of hollow-core fiber in laser and telecommunication related applications.

Paper Details

Date Published: 7 March 2019
PDF: 6 pages
Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108970Y (7 March 2019); doi: 10.1117/12.2513730
Show Author Affiliations
Shou-Fei Gao, Beijing Univ. of Technology (China)
Ying-Ying Wang, Beijing Univ. of Technology (China)
Wei Ding, Institute of Physics (China)
Yi-Feng Hong, Beijing Univ. of Technology (China)
Pu Wang, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 10897:
Fiber Lasers XVI: Technology and Systems
Adrian L. Carter; Liang Dong, Editor(s)

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