Disclosed is an external cavity diode laser system that includes a dispersion unit; a gain element producing coherent light incident upon the dispersion unit; and the dispersion unit dispersing the incident coherent light into dispersed light, the dispersed light comprising a reflected diffraction beam...http://www.google.fr/patents/US6606340?utm_source=gb-gplus-shareBrevet US6606340 - Continuously grating-tuned external cavity laser with automatic suppression of source spontaneous emission and amplified spontaneous emission
Continuously grating-tuned external cavity laser with automatic suppression ...