Ultra-broadband coherent pulse stacking of Yb fiber amplified ultrashort pulses

Tong Zhou; Lauren Cooper; Qiang Du; Dan Wang; Mathew Whittlesey; John Ruppe; Siyun Chen; Deepak Sapkota; Mahek Logantha; Jean-Luc Vay; Derun Li; Carl Schroeder; Jeroen van Tilborg; Eric Esarey; Russell Wilcox; Almantas Galvanauskas; Cameron Geddes

doi:10.1117/12.3003174

13 March 2024 Ultra-broadband coherent pulse stacking of Yb fiber amplified ultrashort pulses

Tong Zhou, Lauren Cooper, Qiang Du, Dan Wang, Mathew Whittlesey, John Ruppe, Siyun Chen, Deepak Sapkota, Mahek Logantha, Jean-Luc Vay, Derun Li, Carl Schroeder, Jeroen van Tilborg, Eric Esarey, Russell Wilcox, Almantas Galvanauskas, Cameron Geddes

Author Affiliations +

Proceedings Volume PC12865, Fiber Lasers XXI: Technology and Systems; PC1286503 (2024) https://doi.org/10.1117/12.3003174
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We theoretically and experimentally show coherent pulse stacking (CPS) can accommodate tens-of-fs pulse durations and has negligible stacking fidelity degradation with increased pulse bandwidth. Simulations prove large number of tens-of-fs pulses can be stacked with high pre-pulse contrast. In an experiment, nine spectrally broadened and fiber amplified pulses are stacked using four cascaded cavities. CPS of pulses with different spectral bandwidths, up to 75 nm base-to-base (<50 fs transform-limited duration), are tested, showing negligible stacking degradation due to increased bandwidth. This work provides a path towards high energy, tens-of-fs pulses from ultrafast fiber lasers.

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Tong Zhou, Lauren Cooper, Qiang Du, Dan Wang, Mathew Whittlesey, John Ruppe, Siyun Chen, Deepak Sapkota, Mahek Logantha, Jean-Luc Vay, Derun Li, Carl Schroeder, Jeroen van Tilborg, Eric Esarey, Russell Wilcox, Almantas Galvanauskas, and Cameron Geddes "Ultra-broadband coherent pulse stacking of Yb fiber amplified ultrashort pulses", Proc. SPIE PC12865, Fiber Lasers XXI: Technology and Systems, PC1286503 (13 March 2024); https://doi.org/10.1117/12.3003174

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