Accession Number : ADD015585

Title :   Catheter, Catheter System and Method using Fluoride Fiber Laser and Silica Fiber.

Descriptive Note : Patent Application, Filed 21 Sep 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

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

Report Date : 21 Sep 1992

Pagination or Media Count : 17

Abstract : A catheter, catheter system and method using a fiber laser and silica fiber coupled to the fiber laser. The catheter preferably includes an erbium-doped fluoride fiber laser which utilizes the 4I11/2 to 4I13/2 transition to generate a laser output at a wavelength of about 2780 nanometers which is at or near the maximum radiation absorption wavelength of organic tissue. An optical fiber, preferably a silica fiber, is coupled to the fluoride fiber laser to guide a pump beam thereto. In the catheter system, the pump beam is preferably generated by a laser diode emitting laser light at a wavelength of about 800 nanometers.

Descriptors :   *CATHETERS, *FIBERS, *FLUORIDES, *LASERS, *PATENT APPLICATIONS, ABSORPTION, DIODES, ERBIUM, LIGHT, OUTPUT, PUMPS, RADIATION, RADIATION ABSORPTION, TRANSITIONS, DOPING, OPTICS

Subject Categories : Electrical and Electronic Equipment
      Lasers and Masers
      Medical Facilities, Equipment and Supplies
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE