Abstract

An antireflection-coated broad-area laser diode with an emitter size of 400μm ×1μm and a chip length of 1500μm is operated in a simple external cavity. For wavelength stabilization and to narrow the bandwidth a diffraction grating in a Littrow configuration is used. At an injection current of 9A up to 6.8W of optical output power and a resulting slope efficiency of 0.8W/A could be achieved. Further, the bandwidth could be narrowed to 100pm (FWHM), and a tuning range of 40nm around 976nm was obtained.

© 2008 Optical Society of America

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