TUNABLE LASER Russian patent published in 1998 - IPC

FIELD: laser engineering. SUBSTANCE: newly introduced in tunable laser are multipass amplifier incorporating active element and two mirrors, control module for USW-signal source, and spectral parameter meter. Sound conductor of acoustooptic deflector is made in the form of prism with certain angle between input face and converter mounting surface. Acoustic array of deflector is excited so that its inherent angular dispersion, dispersion of sound conductor and self-collimating array are added to telescope dispersion; deflector is installed relative to telescope so that angle of light beam incidence on acoustic array is corrected due to angular dispersion of telescope and sound conductor of acoustooptic deflector. EFFECT: improved efficiency of acoustooptic interaction for particular radiation wavelength. 1 dwg