Fluorescent fiber diagnostics

Details Fluorescent fiber diagnostics Fluorescent fiber diagnostics

1993-06-03

1994-10-04

Gregory, Bernarr E.

Coherent light generators

Optical fiber laser

372 70, 25022714, 250577, G01J 158

Patent

active

H00013641

ABSTRACT:
A fluorescent fiber (13) having a doped core (16) is pumped (11) by light (18) of a relatively short wavelength to produce fluorescence at a longer wavelength that is detected by detector (24). The level of fluorescence is monitored (26) and evaluated to provide information as to the excitation of the fiber (13) or the environment thereof. In particular, the level of intensity of the detected fluorescence may be used to measure the intensity of a light beam (18) passing axially through an optical fiber system (12) (FIG. 1 ), or the intensity of a light beam (46) passing radially through a fluorescent fiber (13) (FIG. 2 ), or the level of a fluid (32) in a tank (31) (FIG. 3 ), or a scintillation event (37) in a fluorescent fiber (13) pumped to produce amplification of the scintillation event (FIG. 4 ).

REFERENCES:
patent: 4942306 (1990-07-01), Colbourne
patent: 5051595 (1991-09-01), Kern et al.
patent: 5064271 (1991-11-01), Kern et al.
patent: 5225925 (1993-07-01), Grubb et al.
York brochure for "Neodymium-doped Single-mode Optical Fiber," Feb., 1987, 2 pages.
BICRON brochure for a BCF-10 blue-emitting, plastic scintillating fiber, Oct., 1990, 2 pages.

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