Frequency stepwise fiber laser for practical gas spectroscopy

Tao Chen; Xin Chen; Wei Kong; Genghua Huang; Rong Shu

doi:10.1117/12.2642966

28 December 2022 Frequency stepwise fiber laser for practical gas spectroscopy

Tao Chen, Xin Chen, Wei Kong, Genghua Huang, Rong Shu

Proceedings Volume 12310, Advanced Lasers, High-Power Lasers, and Applications XIII; 123100U (2022) https://doi.org/10.1117/12.2642966
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

We introduce the concept of frequency stepwise fiber laser and its potential application in gas spectroscopy with simple time-domain retrieval. Three different setups of the in-loop frequency shifter are demonstrated with different options of frequency step sizes. Spectroscopy in O₂ and CO₂ is carried out in gas cell to verify the spectral retrieval capability. The retrieved curves are in good agreement with the calculated results from HITRAN database. The output wavelength band of such a frequency stepwise fiber laser can be further extended with different in-loop gain fiber and/or nonlinear frequency conversion, providing promising solutions to practical spectroscopy of many important gases.

Conference Presentation

Citation Download Citation

Tao Chen, Xin Chen, Wei Kong, Genghua Huang, and Rong Shu "Frequency stepwise fiber laser for practical gas spectroscopy", Proc. SPIE 12310, Advanced Lasers, High-Power Lasers, and Applications XIII, 123100U (28 December 2022); https://doi.org/10.1117/12.2642966

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