Accession Number : ADD016370

Title :   Rare Earth Ion Doped CW Cascade Fiber Laser.

Descriptive Note : Patent, Filed 30 Oct 92, patented 17 May 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Esterowitz, Leon ; Allen, Roger E

Report Date : 17 May 1994

Pagination or Media Count : 8

Abstract : A continuous wave(CW) activator ion doped fiber laser is presented which lases at a normally self-terminating laser transition at a slope efficiency greater than that achieved by a self-terminating fiber laser. Two laser transitions, one corresponding to a self-terminating laser transition and the other to a transition out of the lower level of the self-terminating transition, are simultaneously stimulated in the activator ion doped fiber. Through simultaneous lasing of the two wavelengths corresponding to these transitions, the lower level of the self-terminating transition is sufficiently depopulated so that CW operation is achieved.

Descriptors :   *PATENTS, *LASER BEAMS, *CONTINUOUS WAVE LASERS, CONTINUOUS WAVES, EFFICIENCY, FIBERS, IONS, LASERS, LASER PUMPING, SLOPE, RARE EARTH ALLOYS, DOPING

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE