Coherent light generators – Particular resonant cavity
Patent
1986-11-10
1989-04-18
Sikes, William J.
Coherent light generators
Particular resonant cavity
350174, 35016219, 350311, 350317, 372 50, 372 94, 372 97, 372 98, 372 99, 372 29, 372 20, 372 32, H01S 308
Patent
active
048233579
ABSTRACT:
A laser transmitter is disclosed in which the laser combines the outputs of numerous laser diodes using dichroic combination to produce a high power, diffraction limited beam which may be transmitted at minimum beam divergence using the full aperture of the transmitter telescope. The individual diode beams are combined and superimposed in the laser, and are transmitted superimposed in the near and far field of the transmitter telescope. The dichroic combining process is as follows. A collimate beam of a first wavelength is directed at a narrowband or long wave pass filter which is tilted slightly (about 10 degrees). This beam passes through the filter. A beam of a second wavelength is directed toward the exit side of the filter (which acts as a mirror) at such an angle that the second beam is reflected colinear with the first beam and superimposed on it. This process of superimposing the laser beams continues as each laser beam from the laser diodes is added to form a combined laser beam. Before transmission, a sample is extracted from the combined laser beam, and filtered at the discrete wavelengths of the laser diodes to determine if each of the laser diodes needs to be adjusted. When necessary, the laser diodes are thermally adjusted so that their laser beams are at their specific discrete wavelength.
REFERENCES:
patent: 2945958 (1960-07-01), Morris
patent: 3107296 (1963-10-01), Hine
patent: 3232164 (1966-02-01), Kern et al.
patent: 3310753 (1967-03-01), Burkhalter
patent: 3501223 (1970-03-01), Rack
patent: 3541468 (1970-11-01), Hammond, Jr. et al.
patent: 3577093 (1972-05-01), Simpson
patent: 3633123 (1972-01-01), Marcatili
patent: 3743383 (1973-07-01), Giallorenzi
patent: 3763441 (1973-10-01), Roess
patent: 3808428 (1974-04-01), Barry et al.
patent: 3835414 (1974-09-01), Ahearn
patent: 3920983 (1975-11-01), Schlafer et al.
patent: 3924937 (1975-12-01), Munroe et al.
patent: 3953727 (1976-04-01), d'Auria et al.
patent: 3986130 (1976-10-01), Soures et al.
patent: 4073572 (1978-02-01), Avicola
patent: 4103254 (1978-07-01), Chikami
patent: 4163954 (1979-08-01), Hayes
patent: 4174150 (1979-11-01), Congleton
patent: 4309671 (1982-01-01), Malyon
patent: 4311360 (1982-01-01), Hodson et al.
patent: 4344671 (1982-08-01), Lang
patent: 4406003 (1983-09-01), Eberly et al.
D. M. Robinson and C. W. Rowland, "Optically Coupling Tunable Diode Lasers", NASA Tech. Briefs, vol. 4, No. 1, Spring 1979, p. 49.
Auton William G.
Epps Georgia Y.
Sikes William J.
Singer Donald J.
The United States of America as represented by the Secretary of
LandOfFree
Diffraction limited dichroic combiner diode laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diffraction limited dichroic combiner diode laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffraction limited dichroic combiner diode laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2400846