Doped optical fiber laser amplifier

Details Doped optical fiber laser amplifier Doped optical fiber laser amplifier

1989-11-13

1990-09-25

Scott, Jr., Leon

Coherent light generators

Optical fiber laser

350 9615, 350 9634, 372 39, 372 41, H01S 330

Patent

active

049598376

ABSTRACT:
An erbium-doped fiber laser amplifier (1), characterized by the fact that said fiber (3) is doped to a concentration lying in the range 5 ppm to 50 ppm, that the length of said fiber lies in the range 250 m to 30 m depending on the selected concentration of doping, and that the radial position of the doped zone substantially coincides with the energy maximum of the set of propagation modes in said fiber at the pumping wavelength.

REFERENCES:
patent: 4637025 (1987-01-01), Snitzer
patent: 4782494 (1988-11-01), Pollack et al.
patent: 4910737 (1990-03-01), Payne et al.
Optics Letters, vol. 12, No. 11, Nov. 1987, pp. 888-890; E. Desurvire et al.: "High-Gain Erbium-Doped Traveling-Wave Fiber Amplifier".
Technical Digest of the 13th European Conference on Optical Communication, vol. 3, pp. 89-94, 1987; D. Payne et al.: "Rare-Earth Doped Fibre Lasers and Amplifers".
Technical Digest of the 14th European Conference on Optical Communication, Part 1, Sep. 1988, pp. 62-65; B. Ainslie et al.: "Fabrication and Optimisation of the Erbium Distribution in Silica Based Doped Fibres".
Journal of Physics E. Scientific Instruments, vol. 19, No. 2, Feb. 1986, p. 89, Bristol, GB: "New Lasers Invented".

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