Accession Number : ADD018386

Title :   Compact Continuous Wave Tunable Infrared Lasers and Method.

Descriptive Note : Patent Application, Filed 19 Sep 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Burns, William K ; Goldberg, Lew ; McElhanon, Wayne

PDF Url : ADD018386

Report Date : 19 Sep 1996

Pagination or Media Count : 31

Abstract : A bulk, quasi-periodic phase-matched difference-frequency (DFG) process in field-poled LiNbO3 bulk crystal permits continuous tunability of the output radiation in the 3.0-4.1 um wavelength range through grating rotation. DFG in QPM-LiNbO3 crystal, carried out using a Nd:YAG laser and a high power semiconductor laser at the quasi-phased matching (QPM) degeneracy point, results in an ultra wide 0.5 um acceptance bandwidth, permitting crystal rotation-free wavelength tuning of 4.0-4.5 um, with 0.2 mW output power at 4.5 um.

Descriptors :   *TUNABLE LASERS, *INFRARED LASERS, *INTERMEDIATE INFRARED RADIATION, *CONTINUOUS WAVE LASERS, LASER PUMPING, YAG LASERS, PATENT APPLICATIONS, SEMICONDUCTOR LASERS, LASER BEAMS, PIEZOELECTRIC CRYSTALS, BANDWIDTH, OPTICAL CIRCUITS, LITHIUM NIOBATES, BULK SEMICONDUCTORS, DIFFERENCE FREQUENCY, ETCHED CRYSTALS

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE