Multiwavelength self-pumped solid state laser
US4321559A · kind A · utility
21Cited by
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6Claims
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Key dates
| Filing date | Apr 3, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Apr 3, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A new class of solid-state laser which employs self-pumping from internal laser transitions to achieve inversion in other transitions. A LiYF.sub.4 laser having an activator of trivalent holmium is pumped by a standard flashlamp or by a doubled Nd laser to populate the .sup.5 S.sub.2 manifold. Inversion is achieved between .sup.5 S.sub.2 and .sup.5 I.sub.5 at 1.4 .mu.m. Employing appropriate mirrors, inversion is then produced between .sup.5 I.sub.5 and .sup.5 I.sub.7 at 1.7 .mu.m. Finally inversion is obtained between .sup.5 I.sub.7 and .sup.5 I.sub.8 at 2.06 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.