Simulations of pressure-driven gas flow in a nodeless antiresonant hollow-core fiber for laser absorption spectroscopy applications

Piotr Bojęś; Piotr Jaworski; Karol Krzempek; Ziemowit Malecha; Paweł Kozioł; Grzegorz Dudzik; Fei Yu; Meisong Liao; Dakun Wu; Krzysztof Abramski

doi:10.1117/12.2602660

10 October 2021 Simulations of pressure-driven gas flow in a nodeless antiresonant hollow-core fiber for laser absorption spectroscopy applications

Piotr Bojęś, Piotr Jaworski, Karol Krzempek, Ziemowit Malecha, Paweł Kozioł, Grzegorz Dudzik, Fei Yu, Meisong Liao, Dakun Wu, Krzysztof Abramski

Author Affiliations +

Proceedings Volume 11901, Advanced Sensor Systems and Applications XI; 1190119 (2021) https://doi.org/10.1117/12.2602660
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

We present the results of modelling of pressure-driven gas flow in a 14.7 meters long nodeless Antiresonant Hollow Core Fiber (ARHCF) for predicting the gas exchange time in the ARHCF-based laser absorption spectroscopy measurement systems. The implemented physical model is based on the Navier-Stokes equations for laminar flow. The tunable diode laser absorption spectroscopy has been used for determining experimentally the ARHCF gas filling time. The obtained results confirmed the requirement for more complex geometric models to properly predict the core filling time of nodeless ARHCFs than a simple, single-channel approach, which can be used effectively for gap-less ARHCFs.

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Piotr Bojęś, Piotr Jaworski, Karol Krzempek, Ziemowit Malecha, Paweł Kozioł, Grzegorz Dudzik, Fei Yu, Meisong Liao, Dakun Wu, and Krzysztof Abramski "Simulations of pressure-driven gas flow in a nodeless antiresonant hollow-core fiber for laser absorption spectroscopy applications", Proc. SPIE 11901, Advanced Sensor Systems and Applications XI, 1190119 (10 October 2021); https://doi.org/10.1117/12.2602660

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