Abstract

We present data on ridge-waveguide diode lasers having a vertical far-field divergence of only 11.5° (FWHM) owing to an appropriate waveguide design. The lasers emitted an optical power of more than 1W into the spatial fundamental mode from a ridge width of 5μm. The emission wavelength was stabilized to a narrow range around 808nm by placing a volume Bragg grating in front of the outcoupling facet.

© 2009 Optical Society of America

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