Abstract
Numerical simulations and laboratory experiments are conducted for the development of a compact femtosecond diode-pumped Yb:KYW oscillator. For optimizing the oscillator as a seeding source for a regenerative amplifier, we simulated the output power as a function of the transmission of the output coupler, the incident pump power, and the amplification axis of the gain medium by using laser cavity analysis and design (LASCAD) software. Numerical and experimental results show good agreement for both N p - and N m -polarization for N g - and N p -cut crystals. The experimental results show that the N m -polarization oscillator’s average power exceeds 1.2 W at the central wavelength of 1035 nm with a pulse duration 111 fs, which is suitable for the combined gain spectrum of a dual-crystal amplifier.
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