Air path beam combining optics for a ring laser

Details Air path beam combining optics for a ring laser Air path beam combining optics for a ring laser

1989-12-22

1994-12-27

Buczinski, Stephen C.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, G01B 902, H01S 3083

Patent

active

053770102

ABSTRACT:
An output beam combining apparatus for recombining diverging output beams from a ring laser. One preferred embodiment of the present invention includes a first planar mirror mounted to an exterior surface of a ring laser output mirror and having a reflective coating oriented generally perpendicular to the output mirror along with a second planar mirror disposed adjacent to the first mirror and having a reflective coating oriented perpendicular to the reflective plane of the first mirror. In use a first output beam from the ring laser is reflected back to the rear surface of the ring laser output mirror along a path parallel to but displaced from its initial path. This return beam is then reflected off of the rear surface of the output mirror along a path that is collinear with a second output beam from the ring laser so as to form a combined beam that is directed to a suitable detector.

REFERENCES:
patent: 3480878 (1969-11-01), Macek
patent: 3867034 (1975-02-01), Aronowitz
patent: 4449824 (1984-05-01), Matthews
patent: 4886364 (1989-12-01), Ljung

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