CW-Pulsed laser

Details CW-Pulsed laser CW-Pulsed laser

1979-08-30

1981-09-01

Sikes, William L.

Oscillators

Molecular or particle resonant type

331 945P, H01S 314

Patent

active

042874823

ABSTRACT:
An apparatus for generating a spatially coherent laser beam having both CW and pulsed modes. The modes are generated in differing volumetric regions of a single gain medium excited by a continuous energy pump. The CW portion of the output beam passes from the gain medium through a partially transmissive output coupling. The pulsed modes in the output beam are created in the respective region of the gain medium when transition materials from a selected group are stimulated to undergo an abrupt change between their reflective and transmissive states. Either cavity dumped or Q-switched configurations can be created by selective and patterned location of the transition materials at the ends of the gain medium. Symmetric organization of the volumetric regions within the gain medium allows temporal superposition of the two modes while maintaining spatial distinctiveness within the laser beam generated.

REFERENCES:
patent: 3484722 (1969-12-01), Baker, Jr. et al.
patent: 3497286 (1970-02-01), Morton et al.
patent: 3555455 (1971-01-01), Paine
patent: 3656836 (1972-04-01), de Cremoux et al.

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