Compact beam splitter for acousto-optic correlator

Details Compact beam splitter for acousto-optic correlator Compact beam splitter for acousto-optic correlator

1983-08-22

1986-03-11

Punter, William H.

350173, G02F 111, G02B 2714

Patent

active

045751919

ABSTRACT:
A compact beam splitter apparatus for use with a surface wave acousto-optic time integrating correlator, including a beam splitter for splitting a laser light beam into two beams and a Koesters prism disposed in the paths of the two beams for folding a portion of each beam so that the two folded beam portions converge to a common beam position at a predetermined acute angle between the two beam portions. A single Koesters prism may be used as the beam splitter and the beam folding device, with two mirrors being used to reflect the two beams back to the Koesters prism.

REFERENCES:
patent: 3419898 (1968-12-01), Baldwin et al.
patent: 3462603 (1969-08-01), Gordon
patent: 3536922 (1970-10-01), Ito
patent: 3987299 (1976-10-01), Mulder
patent: 4161349 (1979-07-01), Norman
patent: 4326778 (1982-04-01), Berg et al.
patent: 4421388 (1983-12-01), Berg et al.
Kirchner, E. K. "Acousto-Optic Devices for Use in Radio Frequency Target ulators" Proc. Soc. Phot-Opt. Instrum. Eng. (USA), 1979, SPIE vol. 202, pp. 175-179.

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