A wavelength selective mirror provides single wavelength operation of a gas laser. In a specific embodiment an output coupler optical interference coating allows oscillation of the 488.0 nanometer line of the Argon ion laser blue/green spectrum while suppressing all other lines in that spectrum, particularly...http://www.google.es/patents/US4615034?utm_source=gb-gplus-sharePatente US4615034 - Ultra-narrow bandwidth optical thin film interference coatings for single wavelength lasers
Ultra-narrow bandwidth optical thin film interference coatings for single ...
