Diode-pumped Yb:GSO femtosecond laser

Abstract

Compact femtosecond laser operation of Yb:Gd(2)SiO(5) (Yb:GSO) crystal was demonstrated under high-brightness diode-end-pumping. A semiconductor saturable absorption mirror was used to start passive mode-locking. Stable mode-locking could be realized near the emission bands around 1031, 1048, and 1088 nm, respectively. The mode-locked Yb:GSO laser could be tuned from one stable mode-locking band to another with adjustable pulse durations in the range 1~100 ps by slightly aligning laser cavity to allow laser oscillations at different central wavelengths. A pair of SF10 prisms was inserted into the laser cavity to compensate for the group velocity dispersion. The mode-locked pulses centered at 1031 nm were compressed to 343 fs under a typical operation situation with a maximum output power of 396 mW.

New passively Q-switched LD-pumped self-Raman laser with single-step cascade SE → SRS wavelength conversion on the base of monoclinic Nd3+:Y2SiO5crystal

“…They can be significantly enhanced through the optimization of pumping wavelength and all components of laser cavities, as well as by using crystals much better quality and carefully selected their orientation and Nd 3+ -lasant concentration. Relatively high Raman gain coefficient (g [45,59]. In spite of the efforts of many research teams the problem of precise spectroscopic properties of Ln 3+ ions in C 6 2h -monoclinic orthosilicates still remain to be solved.…”

Growth and Characterization of Ytterbium Doped Silicate Crystals for Ultra-Fast Laser Applications

“…High efficient laser output of 198fs/2.61W, 260fs/2.6W and 343fs/400mW were obtained in Yb:YSO, Yb:LSO and Yb:GSO respectively by Chinese and French researchers (Thibault et al, 2006;Li et al, 2007). Based on laser setup in Fig.…”

Tape casting of a YAG/Yb:YAG/YAG transparent ceramic for a broadband tunable laser

“…One year later, a group led by Ueda increased the output power of a Nd:YAG ceramic laser to 1.46 kW, corresponding to a slope efficiency of 42% [7] . However, the gain bandwidth of the Nd 3+ ion is merely 1 nm, limiting the output pulse width to picosecond magnitude in mode-locked operation for the purpose of generating ultrafast lasers [8][9][10] .…”