Coherent light generators – Particular beam control device – Tuning
Patent
1994-03-31
1995-03-21
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Tuning
372 19, 372 99, 372 96, 372 25, 372 97, 372102, H01S 310
Patent
active
054003504
ABSTRACT:
The present invention is directed to providing compact systems and methods for producing and amplifying chirped pulses to provide high energy ultrashort pulses. Further, the present invention is directed to providing a compact system which is reliable and cost effective to fabricate. In accordance with exemplary embodiments, relatively compact tunable lasers can be used to directly generate long chirped optical pulses. For example, compact monolithic semiconductor lasers which have relatively small dimensions (e.g., dimensions smaller than large frame solid state lasers) and which permit their emission wavelength to be tuned (i.e., changed) relatively fast during the generation of an optical pulse can be used. These pulse sources eliminate any need for bulk components in the cavity of, for example, a mode-locked femtosecond laser. The relatively long chirped optical pulses can subsequently be amplified in plural amplification stages to increase their energy content. In accordance with exemplary embodiments, amplification in plural stages can be achieved by suppressing spontaneous emission between the stages. Afterwards, the amplified pluses can be recompressed.
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Imra America Inc.
Jr. Leon Scott
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