Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-05-17
1997-07-08
Phan, James
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359196, 359209, 359200, 372 22, 372 98, G02B 2608, H01S 310, H01S 308
Patent
active
056467648
ABSTRACT:
The present invention is a beam scanner for use about a nonlinear optical crystal for frequency conversion. The scanner oscillates the high power laser beam passing through the crystal to reduce heat damage and does not change the direction or the position of the beam upon exiting the scanner. A pair of thick optical plates are affixed to a driven axle being parallel to the laser beam direction. The first plate is mounted at a given angle to the axle and the second plate is mounted at the same but negative angle to the axle so that they are mirror images about the crystal. As the axle rotates, the laser beam moves through the crystal in a cylindrical pattern and due to the manner of mounting the plates, the exiting laser beam is not displaced from the original beam direction or position. The beam scanner may be inserted into an existing optical resonator, for example, without modifications thereto.
REFERENCES:
patent: 4118109 (1978-10-01), Crawford et al.
patent: 4860302 (1989-08-01), Janes
patent: 5012485 (1991-04-01), Ohmori
patent: 5034627 (1991-07-01), Ayral et al.
patent: 5084883 (1992-01-01), Khalid et al.
patent: 5095491 (1992-03-01), Kozlovsky et al.
patent: 5168385 (1992-12-01), Kobayashi et al.
patent: 5280491 (1994-01-01), Lai
patent: 5319490 (1994-06-01), Ansley
patent: 5321718 (1994-06-01), Waarts et al.
patent: 5339188 (1994-08-01), Fritzel
patent: 5341236 (1994-08-01), Stappaerts
patent: 5373381 (1994-12-01), Alfano et al.
patent: 5526167 (1996-06-01), Peng
D. Hon, "High Average Power, Efficient Second Harmonic Generation", in Laser Handbook, vol. 3, Ed. by M.L. Stitch (North Holland, Amsterdam, 1979) pp. 421-484.
T. Jeys, "840-Hz Nd: YAG Laser Source of Sodium Resonance Radiation", Final Report to the USAF Phillips Laboratory, Contract F19628-90-C-0002 (1992).
Koch et al., Articles, Opt. Lett., 16, 1436-1438 (1991).
Cheung Eric C.
Koch Karl W.
Moore Gerald T.
Collier Stanton E.
Phan James
Schuberg Darren E.
The United States of America as represented by the Secretary of
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