Broadband fiber-optic thulium-doped amplifier for wavelengths beyond the L-band

Jan Pokorný; Jan Aubrecht; Pavel Peterka

doi:10.1117/12.2622428

19 May 2022 Broadband fiber-optic thulium-doped amplifier for wavelengths beyond the L-band

Jan Pokorný, Jan Aubrecht, Pavel Peterka

Author Affiliations +

Proceedings Volume 12140, Micro-Structured and Specialty Optical Fibres VII; 1214009 (2022) https://doi.org/10.1117/12.2622428
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

e present preliminary characterization of an optical fiber amplifier for wavelengths beyond the L-band based on a core pumped thulium-doped fiber developed and fabricated in-house. We explore adaptation of an existing broadband fiber optic thulium-doped source of amplified spontaneous emission, which generates radiation in a spectral region around 2 micrometer wavelengths, for the purpose of signal amplification. The amplifier is pumped by an erbium-doped fiber laser at 1566 nm in a backward configuration with respect to the pump power. We characterize the amplifier using a narrowband input signal at 1950 nm and 1996 nm. We optimize the amplifier setup by varying the length of the active fiber and pump power. Results show that amplification of <30 dB at 1950 nm with maximum output power ~300 mW is achievable with existing setups.

Conference Presentation

Citation Download Citation

Jan Pokorný, Jan Aubrecht, and Pavel Peterka "Broadband fiber-optic thulium-doped amplifier for wavelengths beyond the L-band", Proc. SPIE 12140, Micro-Structured and Specialty Optical Fibres VII, 1214009 (19 May 2022); https://doi.org/10.1117/12.2622428

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