1987-04-10
1990-07-03
Arnold, Bruce Y.
350247, G02B 702
Patent
active
049385640
ABSTRACT:
A crystal modulator (20) is on an axis (19) which is positioned in translation and pivotal rotation with respect to another axis (17) of a laser. The crystal modulator (20) is supported in an inner housing (18) on axis (19). The inner housing is supported within an outer housing (16) which is affixed to the laser. Mating surfaces (32, 38) on the inner and outer housings are spherically contoured so that the inner housing may be pivoted about the center (24) of the extended sphere of the mating surfaces and thereby pivot axis (19) into coincidence with axis (17). An end (22) of the crystal modulator is positioned at this spherical center. Of two sets of four setscrews (26, 28) threaded into the outer housing, one set is disposed to contact the inner housing directly. The other set of screws is disposed to contact a ring (36) whose inner surface comprises one of the spherical surfaces. By adjustment of the screws, the axis of the inner housing may be linearly moved in a radial direction toward the laser optical axis until at least both axes intersect at the centerpoint (34) of the spherical surfaces. The set of setscrews (28) are adjusted to pivot the axis of the inner housing about the centerpoint of the spherical surfaces until the axes coincide.
REFERENCES:
patent: 3783404 (1974-01-01), Matsuoka
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patent: 4134129 (1979-01-01), Filipovich
patent: 4331384 (1982-05-01), Eisler
patent: 4614403 (1986-09-01), Kersten
Vasilenko et al, "Device for Adjusting a Resonator and Returning the Frequency of a Laser," Instruments and Experimental Techniques, vol. 27, No. 5, Sep.-Oct., 1984, pp. 1267-1268.
Grundon et al, "Adjustable Optics Mounting Assembly for Vacuum Use," IBM Technical Disclosure Bulletin, vol. 23, No. 11, Apr. 1981, pp. 4941-4942.
WO86/00982, Lussorio, P., "Apparatus for Adjusting the Direction of a Light Beam Emitted by A Laser Tube", 2-13-86.
Via, G. G., "Laser Beam Steering System", IBM Tech. Disc. Bull., 11-1980, p. 2374.
Arnold Bruce Y.
Denson-Low W. J.
Hughes Aircraft Company
Lerner Martin
Streeter W. J.
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