Numerical investigation of divided-pulse amplification assisted by hollow core anti-resonant fiber

Optics Express, Journal Year: 2024, Volume and Issue: 32(24), P. 43459 - 43459

Published: Oct. 30, 2024

An all-fiber structure laser based on divided-pulse amplification technology and a hollow core anti-resonant fiber (HC-ARF) is proposed. We numerically investigate the process of in vectorial nonlinear Schrödinger equations. By changing splicing angle HC-ARF, conventional soliton with 703 fs can be divided into two sub-pulses orthogonal polarization states. After compression, are recombined one pulse an identical HC-ARF. The combining efficiency limitations that originate from cross-phase modulation, self-phase dispersion, analyzed. Moreover, number increase to eight greatly suppress accumulation phase shifts, by using three segments HC-ARF angles 45°. simulation result indicates peak power average improved after amplifying sub-pulses. work provide what we believe new method for achieving high-peak high-average femtosecond lasers.

Language: Английский

Enhancement of self-compression in large-mode-area fibers using third-order dispersion

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 183, P. 112281 - 112281

Published: Dec. 9, 2024

Language: Английский

Multipass cell for mJ-level, sub-two cycle nonlinear pulse compression with >100W average power at 1.9 µm

Published: Jan. 1, 2024

In this work, we present a nonlinear post-compression with an average power exceeding 100 W based on gas-filled multipass cell providing sub-two-cycle pulses. It is enabled by thulium-doped fiber chirped-pulsed amplification system.

Language: Английский