Abstract
Good quality beams are a critical requirement in many applications for high-power semiconductor lasers, such as optical computing, medicine and optical pumps for lasers/amplifiers or nonlinear crystals in frequency conversion. For these applications, a range of output characteristics that include high CW/average power and good spectral/spatial quality, is often required. Novel DBR and DFB semiconductor lasers incorporating “curved-groove” diffraction gratings afford improved control over the divergence and spectrum of the emitted light.
© 2002 Optical Society of America
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