Ultrafast laser with multiply-folded resonant cavity
US5912915A · kind A · utility
45Cited by
5References
8Claims
0Family size
Assignee
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Key dates
| Filing date | May 19, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | May 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/08
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.