Self-aligned polarized laser
US4050035A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1976 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Feb 13, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser of the type which generates linearly polarized light and including optical means for self-alignment. Among such polarized lasers are, for example, solid state lasers and particularly ruby lasers, as well as various gas lasers employing Brewster windows. The problem is solved by utilizing a corner reflector in the laser cavity which generates two parallel laser beams. In order to achieve effective laser operation the polarization determining aspect of the laser, that is the crystal axis or Brewster windows, must be so oriented with respect to the corner reflector that the laser beam in passing through the laser is so reflected by the corner reflector that the light will return through the laserable material with the same directon of polarization as that of the original laser beam generated by the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.