US 11,656,528 B1
Nonlinear incoherent combining of pulsed lasers
John Myron Ruppe, Broomfield, CO (US); and Bruce Gregory Tiemann, Longmont, CO (US)
Assigned to LOCKHEED MARTIN CORPORATION, Bethesda, MD (US)
Filed by LOCKHEED MARTIN CORPORATION, Bethesda, MD (US)
Filed on Aug. 4, 2021, as Appl. No. 17/394,092.
Claims priority of provisional application 63/061,087, filed on Aug. 4, 2020.
Int. Cl. G02F 1/35 (2006.01); G02B 27/12 (2006.01); G02B 19/00 (2006.01)
CPC G02F 1/3511 (2013.01) [G02B 19/0009 (2013.01); G02B 19/0047 (2013.01); G02B 27/123 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An optical system comprising:
multiple laser sources operable to produce collimated input beams;
a telescope system arranged to receive the collimated input beams, wherein the telescope system is configured to modify each of the collimated input beams to produce diverging beams that have a beam width that is smaller than the beam width of the collimated input beams, the telescope system comprising:
a first converging lens for receiving the collimated input beams; and
a second converging lens to output the diverging beams, wherein the first converging lens and the second converging lens are separated by a distance equal to a sum of their corresponding focal lengths; and
a nonlinear lens having an intensity-dependent refractive index and arranged to receive the diverging beams and refract each of the diverging beams to produce spatially overlapping collimated output beams.