A MODIFIED FABRY-PEROT INTERFEROMETER AS A DISCRIMINATION FILTER AND A MODULATOR FOR LONGITUDINAL MODES
Abstract
Kleinman and Kisliuk proposed a symmetric modified Fabry-Perot interferometer in which, by providing an extra reflecting surface outside and parallel to the maser plates, certain longitudinal Fabry-Perot orders become more lossy than others. By that is meant modes with lower losses oscillate preferentially. In this paper an unsymmetric modified interferometer is investigated. The space between the active medium and the extra reflecting surface is assumed to be filled by an arbitrary, lossless dielectric medium. When the ratio of this dielectric constant to that of the active medium is modulated, the analysis shows that longitudinal modes are modulated in their amplitude and frequency. In particular, the modulation of this ratio about the value 1 appears to be very interesting, since the modes with the lowest losses, e.g., for ratios larger than 1, possess the largest losses for ratios smaller than 1, and vice versa.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1962
- Accession Number
- AD0296948
Entities
People
- Helmut K.v. Lotsch
Organizations
- California Institute of Technology