Large laser diode arrays for high-duty-cycle operation

Large arrays stacked 3 cm high, consisting of 38 laser bars 1 cm wide, have been operated at 100 W of average power and 4.5% duty cycle (2400 W peak power) with excellent spectral characteristics. Operation consisted of a burst of 10 150 mu s pulses on a 1 ms period, with burst repetition rates of up to 30 Hz. Conventional operation with 200 and 1000 mu s pulse widths is also reported.<>     

11 W quasi-CW monolithic laser diode arrays

An optical power of 11 W from one facet has been obtained from a 1 cm integrated GaAlAs laser array for 150 ?s is pulse widths (quasi-CW operation). The array consists of 20 tenstripe lasers spaced along the bar, employing about 20% of the facet length for active laser emission.     

Advances in diode laser pumps

Diode laser pumps for solid-state lasers are reviewed with special emphasis on current and future capabilities. Included are discussions of pumps for CW (continuous-wave) and quasi-CW operation, and end- and side-pumping configurations     

Ultra-high-power quasi-CW monolithic laser diode arrays with high power conversion efficiency

An optical power output of 134 W from one facet and power conversion efficiencies as high as 49% have been obtained from monolithic AlGaAs laser arrays with 1 cm emitting widths for 150^s pulse widths (quasi-CW operation). The arrays have etched grooves to prevent transverse lasing and amplified spontaneous emission.     

Performance characteristics of high-brightness, CW, diode laser arrays

Recently developed, high-brightness diode laser arrays have been tested at 50°C at output powers of 0.5 W CW and 1.0W CW from 100?m- and 200?m-wide active regions, respectively. The extrapolated lifetimes at room temperature exceed 40000 h. The maximum CW power output prior to catastrophic degradation of the facets is 2.0 W for the 100?m device and greater than 3 W for the 200?m-aperture device.     

High power diode laser arrays

Recent progress in the development of high-power diode laser arrays for solid-state laser pumping is detailed. Advances in available wavelength, efficiency, temperature of operation, duty cycle of operation, and peak and average power levels or densities are described. A packaging architecture capable of addressing the broadest range of pump applications and designs in an economic manner is defined, and a range of such package designs is presented     

High-power and high-efficiency phased array lasers grown by a two-step metalorganic chemical vapour deposition

Phased array lasers which emit 1.3 W CW output were fabricated using a two-step metalorganic chemical vapour deposition process were developed. The differential efliciency at 100 mW is 78% and the total efficiency at the catastrophic limit is 39%.