CC BY
19LS-I-7
Yb:LuAP Laser Crystal for Mode-Locked Lasers and Chirped
Pulse Regenerative Amplifiers
V.E. Kisel1, A.S. Rudenkov1, A.S. Yasukevich1, K.L. Hovhannesyan2, A.G. Petrosyan2, and N.V. Kuleshov1
1 - Center for Optical Materials and Technologies, Belarusian National Technical University, Minsk, Belarus 2 - Institute for Physical Research, National Academy of Sciences, Ashtarak-2, Armenia
E-mail: VEKisel@bntu.by
We report on recent results deal with spectroscopic properties and laser performance of novel laser media based on Yb-doped aluminum and lutetium perovskite crystals. Unique spectroscopic properties of trivalent ytterbium ions of these host media make these crystals good candidates for active elements of picosecond and femtosecond solid-state laser systems. The features of soliton and non-soliton mode-locking were studied using SESAMs as a saturable absorber. Maximum average output power of 7W with pulse duration of 130fs and 28.1% optical efficiency were obtained in soliton mode-locking regime. 90-fs pulses were generated with reduced to 2.9 W output power. Average output power up to 12W with 2ps pulse duration and 38% optical efficiency was obtained in non-soliton mode-locking regime with extremely low quantum defect between pump (980nm) and laser (999nm) wavelengths under longitudinal diode pumping. Chirped pulse regenerative amplifier based on Yb:LuAP crystal was investigated. Pulse duration as short as 165fs with average output power of 4.5W at 200 kHz pulse repetition frequency was demonstrated.
