High-Power Diode Laser Technology and Characteristics

Spectral characteristics optimization of high power semiconductor laser diodes by adjusting the reflectivity of the cavity surface coating film

“…Nevertheless, due to the inherent constraints of the waveguide construction in semiconductor lasers, the resulting output beam is typically modeled as an elliptical Gaussian beam, which makes it hard to use directly for pumping solid-state lasers. This approximation accounts for both picture dispersion and the non-uniformity of the light intensity distribution 4,5 . Therefore, the laser beam must be collimated and curved to increase the beam quality to satisfy the needs of practical applications 6,7,8 .…”

16 W output power by high-efficient spectral beam combining of DBR-tapered diode lasers

“…In this regard diode lasers represent a suitable alternative. Besides their advantages mentioned above, diode lasers also offer a wider range of wavelengths due to their material compositions [18]. This might provide additional advantages for certain applications and even enable new applications not accessible using laser emissions based on atomic transitions.…”