Method and device for generating high quality laser beam from la

Details Method and device for generating high quality laser beam from la Method and device for generating high quality laser beam from la

1991-10-31

1993-04-27

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Scanning

372101, 372 64, 372 36, 372 26, H01S 310

Patent

active

052068692

ABSTRACT:
A method and device for generating a collimated laser beam which is circular in cross-section, non-astigmatic, diffraction-limited and has a gaussian energy distribution are disclosed. The device comprises a single mode optical waveguide having an input end and an output end, a laser diode optically coupled to the input end of the optical waveguide for producing at the output end thereof a laser beam which is circular in cross-section, non-astigmatic and diffraction-limited and has a gaussian energy distribution, and a collimating lens for collimating the laser beam. The collimating lens is disposed in spaced relationship to the output end of the optical waveguide such that the output end is positioned at the focal point of the collimating lens.

REFERENCES:
patent: 4719474 (1988-01-01), Hansen et al.
patent: 5084883 (1992-01-01), Khalid et al.

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