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We report on a narrow-band (<;0.7nm) optical parametric oscillator operating at degeneracy. By using a volume Bragg grating a signal power of 1.7W with a slope efficiency of 31.8% and good beam quality was achieved.
We report the first operation of a Ti:sapphire laser pumped by fiber laser. Using a high-power, cw, frequency-doubled Yb-fiber source at 532nm, continuous-wave operation over 806–970nm with output power >1.1W in TEM00 spatial beam is demonstrated.
We report stable, continuous-wave, mid-infrared optical-parametric-oscillator based on MgO:PPLN, pumped by Yb-fiber-laser, generating total power of 17.5W at 61% extraction efficiency, in TEM00(M2 Idier <1.24,M2 Signal<1.24) spatial mode with peak-peak idler power stability of 5% over 14 hours.
We demonstrated 105 W pico-second output from a cascaded Nd:YVO4 amplifier laser system consisting of a Nd:YVO4 bounce amplifier with a photorefractive phase-conjugate mirror and a second diode-side-pumped Nd:YVO4 bounce power amplifier.
A diffraction-limited narrow-linewidth diode laser system based on a tapered amplifier in external cavity is demonstrated. 1.38 W output power is obtained. The laser system is tunable from 659 to 675 nm.
Laser systems deployed in Inertial Fusion Energy power plants will usher in space qualified laser engineering and materials on a massive scale. Understanding subsystem efficiencies and component Mean Time Between Failure (MTBF) are critical for success.
Highly efficient GaSb-based semiconductor-disk-lasers in the 1.9-2.8 μm range have been fabricated. They reach output powers >3W in CW-operation at room temperature . By using intracavity filters, single-frequency emission with a linewidth below 2.3 MHz was achieved.
Power scaling of end-pumped Nd:GdVO4 laser was realized by directly pumping and grown-together crystal. A maximum CW output power of 46.0W with M2 <; 1.1 was obtained. Effective A-O Q-switch operations were also reported.
We demonstrate that THz radiation beams generated by an array of the randomly-distributed InN nanopyramids can be used to enhance the THz output power by two orders of magnitude due to strong constructive interference.
By stacking two GaP plates, we have improved the THz peak power from 433 W to 1.36 kW based on difference-frequency generation, corresponding to an enhancement by two orders of magnitude over the previous result.
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