Multiple-fold laser
US4779286A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jun 25, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/036
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser optical cavity extends between two end reflectors (11, 12) and is defined by at least three sections. A number of folding reflectors (14) are provided for directing radiation emerging from one section into the next. An active medium is contained in the sections and excitation means are provided to produce laser action. A rigid support member (10) supports the end reflectors (11, 12) and the folding reflectors (14) around a generally cylindrical surface such that a continuous optical path extends between the end reflectors (11, 12) by way of each folding reflector (14) in turn. At least three of the laser sections extend across a substantial part of the area with the cylinder (10) and each section crosses at least one other section at or near to the axis of said cylinder as viewed along that axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.