Coherent light generators – Particular beam control device – Control of pulse characteristics
Patent
1991-10-29
1993-08-10
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Control of pulse characteristics
372 69, 372 20, H01S 310
Patent
active
052356060
ABSTRACT:
A system for producing ultra-high peak power pulses employs a plurality of solid state amplifying materials, such as Nd:glass, alexandrite, and Ti:sapphire, to achieve stretching of a pulse prior to amplification by a factor of approximately between 100 and 10,000. The time-stretched pulse is amplified by many orders of magnitude, illustratively 10.sup.9. After time-stretching and amplification, the pulse is then recompressed to its original duration. Pumping of the multiple solid-state elements is performed simultaneously using an alexandrite laser which is tunable between approximately 700 and 800 nm. The pumping energy has a pulse duration which is less than the fluorescence lifetime of the excited solid-state media.
REFERENCES:
patent: 4655547 (1987-04-01), Heritage et al.
patent: 4910746 (1990-05-01), Nicholson
patent: 4928316 (1990-05-01), Heritage et al.
Coe John S.
Harter Donald J.
Mourou Gerard A.
Squier Jeffrey
Allied-Signal Inc.
Jr. Leon Scott
University of Michigan
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