Ultrafast laser with multiply-folded resonant cavity

Details Ultrafast laser with multiply-folded resonant cavity Ultrafast laser with multiply-folded resonant cavity

1997-05-19

1999-06-15

Lee, John D.

Coherent light generators

Particular resonant cavity

Folded cavity

372 99, H01S 3081

Patent

active

059129158

ABSTRACT:
An ultrafast laser providing short output pulses having a pulse length in the femtosecond range includes a resonant cavity including a plurality folding mirrors for folding the resonant cavity to shorten its overall length. The fold-mirrors each include a plurality of layers deposited by ion-beam sputtering onto a substrate having a surface roughness of less than about 0.5 nanometers RMS. One or more of the folding mirrors may have a negative-group-velocity-dispersion mirror for allowing the laser to operate in a pulsed mode with pulses having a length of less than 500 femtoseconds.

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