Recent development of optically-pumped semiconductor laser (OPSL) technology provide a Ti:sapphire pump source
reducing cost and complexity while maintaining a high standard of performance and reliability. In this paper we report
on the performance of a compact (930 x 330 x 170 mm³), cavity-dumped ultrafast Ti:Sapphire laser oscillator pumped by
an OPSL and using negative dispersion mirrors. The system generates broadband pulses of more than 45nJ pulse energy
from single shot to 2 MHz repetition rate. At higher repetition rates the pulse energy decreases as it is typical for cavity
dumped laser systems, but with 10 nJ at 27 MHz (division ratio of 1:2) the pulse energy is at the level of the Mantis in
standard configuration (8 nJ). FWHM spectrum of the Mantis is specified >70nm and bandwidth over 100nm could be
achieved by fine adjustment of the dispersion with intracavity wedges. Compressed pulse duration down to 12.5fs was
measured. The system is based on the standard Coherent Mantis laser with a cavity dumper extension, making the
footprint only 350 mm longer. It can be user configured either as standard oscillator or as a cavity dumped oscillator.
Ultrashort pulse (USP) Ti:Sapphire oscillators are constantly improving in cost, performance, and reliability. These
improvements have been driven in part by improvements in the CW lasers used to pump the Ti:Sapphire gain medium.
Recent development of optically-pumped semiconductor (OPS) lasers heralds a USP pump source that reduces cost and
complexity while maintaining a high standard of performance and reliability. OPS lasers offer significant advantages
with respect to traditional diode-pumped solid state (DPSS) lasers in regards to wavelength flexibility, broad pump
tolerance, efficient spectral and spatial brightness conversion and high power scaling. In this paper, we report the
performance of different types of ultrashort pulse Ti:Sapphire oscillators pumped by OPS lasers: broad bandwidth
(approximately 100 nm) negative dispersion mirror based, broad bandwidth (approximately 100 nm) prism based, and
narrower bandwidth (approximately 10 nm) tunable prism based oscillator. We analyze the impact of multimode spatial
mode operation of the OPS pump laser on the mode quality, bandwidth and intensity noise of the USP oscillator output.
We compare the performance of USP oscillators pumped by multiple transverse mode OPS lasers with traditional single
transverse mode Nd:YVO<sub>4</sub> DPSS lasers. We demonstrate excellent regenerative amplifier seeding with the OPS
pumped Ti:Sapphire oscillator.