Laser beam control system with bidirectional beam director

摘要

A bidirectional beam director includes a pair of optically coupled diffraction gratings, each being independently rotatable so that a laser beam passing through the pair of gratings can be steered by rotation of at least one of the gratings. The bidirectional beam can be coupled to many types of optical systems, including optical phased arrays, multi-beam laser transmitters and receivers, telescopes, and high energy laser beam control systems.

主权项

1. A laser beam control system comprising:
an output aperture through which an outgoing laser beam is directed toward a target and through which a laser beam return is received, the laser beam return including scatter from the outgoing laser beam; and a bidirectional beam director optically coupled to the output aperture and configured to steer the outgoing laser beam toward the target, the bidirectional beam director comprising a first diffraction grating, a second diffraction grating optically coupled to the first diffraction grating, and a third diffraction grating optically coupled to the second diffraction grating, each diffraction grating being independently rotatable, wherein rotation of any one or more of the diffraction gratings alters a transmit direction of the outgoing laser beam and a receive direction of the laser beam return.