RADIATION SOURCE BUILT AROUND LASER DIODES Russian patent published in 2001 - IPC

FIELD: quantum electronics. SUBSTANCE: proposed high-brightness single- frequency multimode radiation source built around laser diodes exposed to single-frequency laser beams has assembly of laser diodes oriented relative to each other and to optical system. Full width of single output beam spectrum of laser diode assembly is not to exceed 15 nm. At least one setting element for producing at least one single-frequency setting radiation is introduced in radiation source and optically coupled with active layer of each laser diode. Difference in wavelengths Δλ corresponding to gravity center of single- frequency setting radiation spectrum is not to exceed 15 nm. Proposed source may be modified. Number of laser diodes is chosen between 0.5N and 1.5N, where N is integer number found from expression N = [a·sin(Θ_a/2)]/[b·sin(Θ_b/2)], where a and b are dimensions of radiating strips of laser diodes on long and short sides, respectively; Θ_a and Θ_b are divergence angles in planes parallel to long and short sides of radiating strips of laser diodes, respectively. EFFECT: improved physical and performance characteristics of laser radiation source. 17 cl, 11 dwg