20375 - 5320 NRL / MR / 5670 - - 10 - 9272 Characterization of a Low - phase - noise , High - power ( 370 mW ) , External - cavity Semiconductor Laser

DC 20375 - 5320 NRL / MR / 6790 - - 08 - 9156 Optical Quality of High - Power Laser Beams in Lenses

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20375 - 5320 NRL / MR / 7640 - - 05 - 8926 SHIM - Fire Breadboard Instrument Design , Integration , and First Measurements

Theoretical comparison analysis of long and short external cavity semiconductor laser

In this paper, considering optical feedback as an optical injection, and taking in to account round-trip time role in the external cavity, a standard small signal analysis is applied on laser rate equations. By considering the relaxation oscillation (f2) and external cavity frequencies (f) ratio for semiconductor laser, field amplitude response gain, optical phase and carrier number for long ex...

High-sensitivity intracavity laser absorption spectroscopy with vertical-external-cavity surface-emitting semiconductor lasers.

We report the demonstration of high-sensitivity intracavity laser absorption spectroscopy with multiple-quantum-well vertical-external-cavity surface-emitting semiconductor lasers (VECSEL's). A detection limit of 3 x 10(-10) cm (-1) has been achieved. The spectrotemporal dynamics of a VECSEL in the 1030-nm wavelength region has been studied. The laser was operating cw at room temperature, with ...

High power 404 nm source based on second harmonic generation in PPKTP of a tapered external feedback diode laser.

We present results on a 404 nm laser system based on second harmonic generation in a new compact external cavity configuration. We obtain a stable 318 mW cw diffraction limited output from the system with a mode-matched pump power of 630 mW. We observe up to 620 mW SHG, when the cavity is operating in scanning mode. The pump source is an external cavity grating feedback tapered diode laser oper...