Reduced threshold laser device

Abstract

A laser device including: a first amplifying medium capable of emitting a first output laser beam at the output wavelength λs; and a second amplifying medium capable of emitting a second laser beam of intermediate wavelength λi and capable of being pumped at a pump wavelength λp such that λi is included between λp and λs; wherein a single laser cavity containing said first and second amplifying media, this cavity being closed by two mirrors with maximum reflection at the wavelength λi, and in that there are two distinct laser wavelengths λi and λs which take place in said cavity.

Dependencies are inferred from the claim text.