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In-band pumping at 0.88 mum was used to realize Nd-vanadate thin-disk lasers with maximum continuous-wave output power of 14.9 W at 1.06 mum, and to generate 9.1 W output power of green light at 0.53 mum. Results on deep-blue generation are discussed.
We have experimentally studied the pulse-to-pulse instability in Nd:Sc3(BO3)4 random laser. The increase of the instability at the threshold and its reduction at further increase of pumping is in line with the theoretical predictions.
A simple fused silica light-guide assembly transmits 6 W concentrated solar power to a 2D-CPC cavity. The calculated laser power of 75.8 W is obtained for a 4 mm diameter Nd:YAG rod, reaching the conversion efficiency of 11W/m2.
By using a grism in a pulse shaping apparatus, we show that it is possible to pre-compensate for large amounts of dispersion (Gt5000 fs2), thus reserving the dynamic range of the pulse shaper for active control.
Multiple-focal-plane spatial phase retrieval for a chirped-pulse-amplification laser is demonstrated for the first time. Advantages of this method are simplicity of setup, ability to measure angular dispersion, and potential integration into precision, on-shot focal-spot diagnostics.
The complete characterization of the 19th harmonic of Ti:sapphire laser was demonstrated using the photoelectron spectral shearing interferometry for the first time. The frequency chirp of a harmonic pulse was sensitively detected by this method.
We demonstrated a diode-pumped, electro-optically internal-Q-switched laser system fabricated using a Nd:MgO:PPLN. We obtained laser pulses of pulse energy > 2.45 muJ and pulse width ~28 ns from this internal-Q-switched laser system with 2% output coupling.
The emission of high-Q c-Er2O3 resonators displays little inhomogeneous broadening, robust vacuum-Rabi splitting, and strong upconversion. Considering these effects and a rate-equation model, we analyze the prospects for optically pumped on-chip lasing using c-Er2O3.
We present an optimized and automated implementation of the compact Long-Crystal-SPIDER design. The integrated phase-corrections allow for precise pulse reconstruction up to bandwidths of 17 THz and linear chirp detection at bandwidths exceeding 40 THz.
CW laser operation of Tm3+ in Czochralski-grown disordered NaY(WO4)2 crystals is demonstrated. The tunability extends from 1847 to 2069 nm. The maximum slope efficiency and output power amount to ap43% and ap400 mW, respectively.
As a pump laser of a Ti:sapphire femtosecond laser, the authors developed high power, high repetition rate and highly stable Yb:YAG thin disk green laser. We achieved 200 kHz, 73 W operation.
An efficient OP-GaAs OPO pumped by a high repetition rate (20-50 kHz) Q-switched Ho:YAG laser is presented. The slope efficiency is 53% at 20 kHz. Influence of pump polarization on OPO performance is tested.
We demonstrated the generation of 34-muJ, 14-fs optical pulses with an ultrabroad bandwidth (540-1000 nm) by the use of one angularly-dispersed non-collinear optical parametric amplifier.
Efficient infrared 35-THz-wide parametric amplification with energies above 3 mJ is obtained in a 3-stage OPCPA using a combination of a 1030-nm 200-fs Yb- and a 1064-nm 60-ps Nd amplifier seeded with a common Yb oscillator.
Thermal lens shaping for astigmatism compensation is extended to a 65 MHz, diode-pumped Yb:KGW oscillator mode-locked with the aid of a saturable Bragg reflector to yield 250fs (347fs) pulses at an output power of 3.5 W (5W).
We describe the operation of a femtosecond Cr4+:YAG laser that has been mode locked using a novel GaInNAsSb SESAM. 230 fs pulses were generated at an average output power of 280 mW.
We demonstrated passive timing stabilization of mode-locked Ti:sapphire and Yb-fiber oscillators. The timing jitter of two femtosecond laser pulses was 3.2 fs from 10-kHz to 1-Hz integration.
We describe a diode-pumped Cr3+:LiCAF laser which produces 590 mW of continuous-wave output power using two pump diodes. Passive mode locking with a semiconductor saturable absorber mirror produces 97-fs, 2.8-nJ pulses near 800 nm wavelength.
We report a watt-level, single-longitudinal-mode, tunable dual-wavelength, CW Nd:YVO4 laser. The measured spectral widths and average power were 450 MHz, 1.2 W at 1064 nm and 400 MHz, 0.9 W at 1342 nm.
We have developed a cw 5-W 756-nm injection-locked Ti:sapphire laser and generated 1.1-W 378-nm radiation by its frequency-doubling in an external enhancement cavity, which is useful for the selective optical pumping of thalium isotopes.
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