Demonstration of complete gain-narrowing compensation for 100fs duration pulses with ~30nm bandwidth in Yb-doped fiber amplifier system with up to 150dB of total multi-stage gain

Siyun Chen; Mathew Whittlesey; Yifan Cui; Russell Wilcox; Almantas Galvanauskas

doi:10.1117/12.2583328

5 March 2021 Demonstration of complete gain-narrowing compensation for 100fs duration pulses with ~30nm bandwidth in Yb-doped fiber amplifier system with up to 150dB of total multi-stage gain

Siyun Chen, Mathew Whittlesey, Yifan Cui, Russell Wilcox, Almantas Galvanauskas

Author Affiliations +

Proceedings Volume 11665, Fiber Lasers XVIII: Technology and Systems; 1166514 (2021) https://doi.org/10.1117/12.2583328
Event: SPIE LASE, 2021, Online Only

Abstract

We report demonstration of a new spectrally-controllable device, based on a sequence of linear polarizers and birefringent plates, which allows to accurately and adjustably tailor its spectral filtering properties for achieving complete gain-narrowing compensation over ~30nm of signal bandwidth in an Yb-doped fiber system with the total gain reaching 150dB. The experimental demonstration was performed in a regenerative Yb-fiber amplifier system with controllable number of passes, allowing to characterize both signal spectral-narrowing, and as well as spectral compensation at varying levels of achieved total gain. This result opens a pathway towards 100fs duration multi-mJ pulses from fiber CPSA systems.

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Siyun Chen, Mathew Whittlesey, Yifan Cui, Russell Wilcox, and Almantas Galvanauskas "Demonstration of complete gain-narrowing compensation for 100fs duration pulses with ~30nm bandwidth in Yb-doped fiber amplifier system with up to 150dB of total multi-stage gain", Proc. SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 1166514 (5 March 2021); https://doi.org/10.1117/12.2583328

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