55-fs pulses from a spectrally combined fiber laser system via coherent spectral synthesis of two pulse shapers

Siyun Chen; Qiang Du; Dan Wang; Antonio Gilardi; Lauren Cooper; Mahek Logantha; Jeroen van Tilborg; Carl Schroeder; Eric Esarey; Derun Li; Cameron Geddes; Russell Wilcox; Tong Zhou

doi:10.1117/12.2649471

9 March 2023 55-fs pulses from a spectrally combined fiber laser system via coherent spectral synthesis of two pulse shapers

Siyun Chen, Qiang Du, Dan Wang, Antonio Gilardi, Lauren Cooper, Mahek Logantha, Jeroen van Tilborg, Carl Schroeder, Eric Esarey, Derun Li, Cameron Geddes, Russell Wilcox, Tong Zhou

Author Affiliations +

Proceedings Volume 12400, Fiber Lasers XX: Technology and Systems; 124000D (2023) https://doi.org/10.1117/12.2649471
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We demonstrated 55-fs pulses from spectrally combining two chirped-pulse fiber channels operating at partially-overlapped spectral bands, with a pulse shaper incorporated in each channel. The spectral intensity and phase shaping in two fiber channels are coherently-spectrally synthesized by phase-synchronizing the two channels at the overlapped spectrum. To the best of our knowledge, 55 fs is the shortest pulse duration from a spectrally combined fiber system at one-micron Yb wavelength, and this work is the first demonstration of coherent spectral synthesis of two pulse shapers. This work provides a promising path toward high-energy, tens-of-fs fiber chirped-pulse amplifier systems.

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Siyun Chen, Qiang Du, Dan Wang, Antonio Gilardi, Lauren Cooper, Mahek Logantha, Jeroen van Tilborg, Carl Schroeder, Eric Esarey, Derun Li, Cameron Geddes, Russell Wilcox, and Tong Zhou "55-fs pulses from a spectrally combined fiber laser system via coherent spectral synthesis of two pulse shapers", Proc. SPIE 12400, Fiber Lasers XX: Technology and Systems, 124000D (9 March 2023); https://doi.org/10.1117/12.2649471

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