Patent ID: 7099361

Claim:
A high power laser source for generating a stable exit beam at a given wavelength, said laser source comprising a laser diode and guide means for conducting a laser beam, said laser diode including a reflecting front facet and said guide means including at least one reflector, wherein said reflector has a reflectivity R FBG , centered at the desired wavelength of said exit beam, said front facet has a reflectivity R F towards said guide means, said reflectivities R FBG and R F being selected to achieve a predetermined relative feedback r FB =k*R FBG /R F >5, k being a factor determined by the coupling efficiency within said guide means, said guide means' length and said at least one reflector's reflectivity R FBG are selected to warrant multimode operation with at least 10 longitudinal Fabry-Perot internal modes, and said laser source is uncooled, i.e., has no active cooling element.