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Novel transmission- and reflection-type ultrafast saturable absorbers were developed based on single-walled carbon nanotubes (SWCNTs). Their nonlinear optical characteristics, crucial for mode-locking, such as modulation depth, saturation fluence and recovery time were studied. Additionally, we demonstrated passive mode-locking of different bulk solid-state lasers operating above 1 mum using these...
Different types of carbon nanotube saturable absorbers were fabricated and characterized. Their application for solid-state laser mode-locking enabled the generation of sub-100-fs pulses near 1.25 mum with powers up to 280 mW at 79 MHz.
Mode-locking of the disordered cubic sesquioxide crystal Yb:LuScO3 using a reflection-type single-walled carbon nanotube saturable absorber is demonstrated under diode pumping and compared with passive mode-locking by a commercial SESAM.
Single-walled carbon nanotube saturable absorbers were designed for passive mode-locking near 1 mum. Using Yb:KYW and Yb:KLuW, nearly transform-limited sub-150 fs pulses were generated at 1037 nm and 1048 nm, respectively.
Ultrafast single-walled carbon nanotube saturable absorbers were fabricated and optimized for mode-locking solid-state lasers near 1 mum. Their typical modulation depth and recovery time were measured to be Gt 0.3% and ~ 750 fs, respectively.
The continuous-wave (cw) and passive mode-locked operation of a Ti:sapphire-pumped Yb doped KY(WO4)2 laser is reported in this paper. Laser performance in cw operation is studied in a Z-shaped four mirror cavity while in the mode-locked operation, a semiconductor saturable absorber and two SF10 prisms are additionally inserted in the cavity. Results show generation of optical pulses as short as 99...
A mode locked Yb-laser with host material of Lu/sub 2/O/sub 3/ is demonstrated for the first time. Using a saturable absorber mirror ps-pulses and with dispersion compensation pulses as short as 220 fs were obtained at 1033.5 nm.
Mode-locking of the Yb:Sc/sub 2/O/sub 3/ laser with a saturable absorber mirror is demonstrated. The pump efficiency reached 47% in the picosecond regime and with dispersion compensation pulses as short as 230 fs were obtained at 1044.5 nm.
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