Oscillators – Molecular or particle resonant type
Patent
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.
Jr. Leon Scott
Salys Casimer K.
Sikes William L.
Singer Donald J.
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