Erbium-doped fiber optical amplifier

Details Erbium-doped fiber optical amplifier Erbium-doped fiber optical amplifier

1991-03-06

1992-07-28

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

385 5, 372 6, H01S 306, H01S 330, G02B 600

Patent

active

051345170

ABSTRACT:
An erbium-doped fiber optical amplifier, characterized in that said fiber has a mode radius which is not greater than 2.7 .mu.m at a wavelength of 1.55 .mu.m, and in that it has at least one pump wavelength situated in the following regions of the spectrum: 0.98 .mu.m.+-.0.4 .mu.m and 1.48 .mu.m.+-.0.4 .mu.m; the region of the spectrum of at least one signal to be amplified being 1.5 .mu.m to 1.6 .mu.m.

REFERENCES:
patent: 3950707 (1976-04-01), Hill et al.
patent: 4952225 (1990-08-01), Le Sergent et al.
patent: 5005175 (1991-04-01), Desurvire et al.
J. L. Zyskind et al, "Optimization of Erbium . . . ", SPIE Conf, Boston (USA), Sep. 1989, SPIE vol. 1171 Fiber Laser Sources & Amplifiers (1989), pp. 137-136.
M. Shimizu, et al, Post-deadline Paper No. 17, "Compact and Highly Efficient . . . ", OFC Conf, San Francisco (USA), Jan. 1990, NTT Optoelectronics Labs., Japan.

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