Upconversion pumped thulium fiber amplifier and laser operating

Details Upconversion pumped thulium fiber amplifier and laser operating Upconversion pumped thulium fiber amplifier and laser operating

1995-01-20

1996-07-23

Scott, Jr., Leon

Coherent light generators

Optical fiber laser

372 41, 372 68, 372 75, H01S 330

Patent

active

055397581

ABSTRACT:
The present invention is a fluorozirconate laser host doped with a suffict amount of Tm.sup.3+ ions to permit significant emission at a wavelength between about 790 nm and about 830 nm when pumped at a wavelength or wavelengths to excite Tm.sup.3+ ions from the .sup.3 H.sub.6 ground state to the .sup.3 F.sub.4 excited state, and then from the .sup.3 F.sub.4 excited state to the .sup.3 H.sub.4 excited state.

REFERENCES:
patent: 4967416 (1990-10-01), Esterowitz et al.
patent: 5067134 (1991-11-01), Oomen
patent: 5426656 (1995-06-01), Tohmon et al.

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