A Proposed "Twisted-Mode" Technique for Obtaining Single-Axial-Mode Oscillation in a Ruby Laser
Abstract
A proposed technique for obtaining oscillation in a single axial mode in a ruby laser is described and analyzed. The technique involves the use of a quarter-wave plate inside each laser mirror, together with a 0 degree ruby rod. The principal axes of the quarter-wave plates are rotated by 45 degrees with respect to each other. The axial modes in this system have the form of twisted ribbons, with axially uniform transverse E field density. It is believed that this will lead to axially uniform ruby saturation, and hence oscillation in a single axial mode. The general case of arbitrary wave plates at arbitrary angles has also been analysed, and the resulting mode forms and mode spectra are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0452584
Entities
People
- A. Siegman
Organizations
- Stanford University