Abstract: A coherent energy transfer system is disclosed which utilizes a doublet pulse laser transmitter in combination with a phase conjugate mirror (PCM) assembly. In one embodiment of the present invention, the first pulse of the doublet pulse signal illuminates the target, whereas the return pulse reflected from the target constitutes a weak signal to be processed using phase conjugate methods. The second pulse of the doublet phase signal activates the PCM assembly and constitutes the energy source used to produce an amplified, phase conjugated beam.

Abstract: The invention relates to an optical manifold permitting a single pumping source to be utilized to selectively pump a plurality of laser sources. Switching of the emission from the pumping source to the laser source is accomplished by a plurality of FTIR switches. A second group of FTIR switches is utilized to switch the output beams of the laser sources to a common output path.

Abstract: The beampath of input radiation in alignment with the longitudinal axis of symmetry of a rectangular parallelepiped laser slab is divided and criss-crossed by a Brewster angle input prism member into two criss-crossing beam path portions fed into the slab input end face for criss-crossing multiple-reflection propagation along the slab to its output end face to be reunited into the single longitudinal-axis-aligned beam by a Brewster angle output prism member adjacent to such output face.

Abstract: A guidance system is provided for flight vehicles which establishes a reference direction in space by means of two pulsed laser beams. The desired direction is remotely determined and an optical tracker on the flight vehicle is then gated ON by a first pulsed laser beam wih a fixed time delay following receipt of a pulse on board the vehicle. A second pulsed laser beam is fired in a direction to intersect the desired flight path at a set distance from the vehicle, and at a time such that a pulse of the second beam crosses the desired path, and returns to the missile during the time while the tracker on the vehicle is gated ON, so that the tracker receives energy from the backscatter from the atmospheric segment illuminated by the pulse, and causes the vehicle to travel in the desired direction.