Accession Number : ADD000432
Title : Apparatus for Laser Frequency Selection.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Currie,George D
Report Date : 11 Feb 1975
Pagination or Media Count : 5
Abstract : The patent describes a way of using the sharply selective transmitting properties of an aligned etalon. This is accomplished by providing two quarter wave plates and where needed, a linear polarizer in the laser cavity. In lasers, such as Brewster window terminated gas discharge tubes, which provide a polarized beam, the separate polarizer is not needed. A piezoelectric transducer is provided to change the interferometer length to make the laser frequency selective.
Descriptors : *Patents, *Tunable lasers, *Tuning devices, Laser beams, Mirrors, Laser cavities, Piezoelectric transducers, Interferometers
Subject Categories : Lasers and Masers
Distribution Statement : APPROVED FOR PUBLIC RELEASE