SYSTEM FOR FORMING AND DIRECTING LASER RADIATION OF EMITTERS WITH OPTICAL FIBER OUTPUTS TO A TARGET Russian patent published in 2023 - IPC G01S17/88 

FIELD: optoelectronic instrumentation.

SUBSTANCE: development of laser systems in terms of the formation and guidance of laser radiation at remote targets. System for forming and directing laser radiation of emitters with fibre-optic outputs to a target contains emitters with an optical system for generating radiation, a device for coarse directing of the total radiation of emitters, an optical system for forming a given radiation pattern, a scanning device, a device for focusing laser radiation on a target, a receiving lens and receiver, probing radiation device, range finder, including transmitting and receiving units, electronic control and processing unit. For each emitter, a scanning device, a focusing device, a dichroic mirror, scaling and corrective lenses, and a receiver are introduced. For all emitters, a common long-focus collimator is introduced, the radiation formation system, the formation of a given radiation pattern, and the receiving lens of each emitter are made in the form of an off-axis circular zone of a long-focus collimator common to all emitters. The axes of emitters with fibre optic ends are located around the circumference and inclined to the axis of the long-focus collimator, in the focal plane of which are the centres of the ends of the fibre-optic output core, inclined to the axis of the long-focus collimator. The focusing device is made in the form of a mechanism for longitudinal movement of the end of the fibre-optic output core. The scanning device is made in the form of a scanning unit and a flat mirror mounted at an angle of the optical axis behind a long-focus collimator. A dichroic mirror reflecting the radiation of the emitter with a fibre-optic output and transmitting the probing radiation reflected from the target is installed at an angle to the optical axis behind the flat mirror of the scanning device. Scaling and corrective lenses are mounted behind a dichroic mirror in front of the receiver.

EFFECT: creation of a compact optical system for generating and pointing laser radiation at a target, effectively forming radiation of diffraction quality; increasing the accuracy of directing; increase in radiation density on the target; performance improvement; expansion of the functionality of the optical system of formation and guidance for its use for a wide range of tasks for directing laser radiation to various targets.

1 cl, 1 dwg