Raman shifting in gas filled hollow core fiber amplifiers

Shawn Hampton; Ryan A. Lane

doi:10.1117/12.2691113

12 March 2024 Raman shifting in gas filled hollow core fiber amplifiers

Shawn Hampton, Ryan A. Lane

Proceedings Volume 12865, Fiber Lasers XXI: Technology and Systems; 128650Q (2024) https://doi.org/10.1117/12.2691113
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We report the highest average Stokes power using a single frequency methane filled Hollow Core Fiber (HCF) Raman amplifier to the best of our knowledge. HCFs guide light within their core and have high thresholds for detrimental nonlinearities. Gas filled HCF amplifiers use the long interaction lengths of the HCF to lase in hard-to-access wavelength bands with narrow linewidths. Results were obtained using a methane or deuterium filled HCF to convert 1.06 μm, nanosecond-scale, 0.52 mJ pulses to ≈1.55 μm. Optical-to-optical efficiency decreased at high pressures which analysis indicates is due to secondary Raman shifts. Measurements and simulations relating to the power scaling effort of the methane or deuterium filled HCF Raman amplifiers are presented.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shawn Hampton and Ryan A. Lane "Raman shifting in gas filled hollow core fiber amplifiers", Proc. SPIE 12865, Fiber Lasers XXI: Technology and Systems, 128650Q (12 March 2024); https://doi.org/10.1117/12.2691113

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KEYWORDS

Raman spectroscopy

Methane

Fiber amplifiers

Raman scattering

Signal attenuation

Vibration

Data modeling

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