Selectively gas-filled anti-resonant hollow-core fibers for broadband high-purity LP11 mode guidance

An anti-resonant hollow-core fiber capable of propagating the LP11 mode with high purity and over a wide wavelength range is proposed and demonstrated. The suppression of the fundamental mode relies on the resonant coupling with specific gas selectively filled into the cladding tubes. After a length...

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Bibliographic Details
Published in:Optics letters 2023-04, Vol.48 (7), p.1622-1625
Main Authors: Jia, Anqing, Hong, Yifeng, Liu, Qi, Sun, Yizhi, Gao, Shoufei, Sheng, Yulin, Wang, Yingying, Ding, Wei
Format: Article
Language:English
Subjects:
Broadband
Propagation modes
Purity
Tubes
Wave propagation
Online Access:Get full text
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Summary:An anti-resonant hollow-core fiber capable of propagating the LP11 mode with high purity and over a wide wavelength range is proposed and demonstrated. The suppression of the fundamental mode relies on the resonant coupling with specific gas selectively filled into the cladding tubes. After a length of 2.7 m, the fabricated fiber shows a mode extinction ratio of over 40 dB at 1550 nm and above 30 dB in a wavelength range of 150 nm. The loss of the LP11 mode is measured to be 2.46 dB/m at 1550 nm. We discuss the potential application of such fibers in high-fidelity high-dimensional quantum state transmission.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.484663