Optical waveguides – With optical coupler – Input/output coupler
Patent
1993-11-19
1995-02-28
Bovernick, Rodney B.
Optical waveguides
With optical coupler
Input/output coupler
385 24, 385 93, 385118, G02B 632
Patent
active
053944925
ABSTRACT:
A high power optical system includes an array of a plurality of semiconductor laser diodes each having a light emitting surface. A plurality of optical fibers each has one end adjacent the light emitting surface of a separate one of the semiconductor laser diodes. A cylindrical lens extends transversely across the one end of each of the optical fibers to direct the light beam from the semiconductor laser diode into the optical fiber. The other ends of the optical fibers are bundled together so as to effectively emit a single beam of a power equal to the combined beams from each of the optical fibers. A delivery optical fiber has an end adjacent the bundled ends of the optical fibers. A lens system, which is between the bundled ends of the optical fibers and the delivery optical fiber, directs the large beam of light emitted from the bundled ends of the optical fibers into the delivery optical fiber. Each of the optical fibers has a numerical aperture less than the numerical aperture of the delivery optical fiber, and preferably a numerical aperture of between about 0.12 and 0.14.
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An Article by NASA'S Jet Propulsion Laboratory, Pasadena, Calif., entitled "Ball Lenses Collimate and Focus Diode-Laser Array Beams", NASA Tech Briefs, Apr. 1993, pp. 26 and 27.
Applied Optronics Corporation
Bovernick Rodney B.
Heartney Phan Thi
Ostroff Irwin
Pfeifle Erwin W.
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