Optical fiber amplifier circuit comprising a control circuit for

Details Optical fiber amplifier circuit comprising a control circuit for Optical fiber amplifier circuit comprising a control circuit for

1992-08-28

1994-03-29

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359134, 359345, 372 70, G02B 628, H01S 330

Patent

active

052990559

ABSTRACT:
In an optical fiber amplifier circuit comprising first through m-th excitation light sources generating first through m-th excitation lights, first through m-th driving circuits drive the first through the m-th excitation light sources, respectively. Each of first through m-th transducers are coupled to each of the first through the m-th excitation light sources and transduces a part of each of the first through the m-th excitation lights to first through m-th electrical signals. In response to the first through the m-th electrical signals, a control circuit supplies first through m-th control signals to the first through the m-th driving circuits to control the first through the m-th excitation light sources so that the first through the m-th excitation light sources generate the first through the m-th excitation lights having first through m-th output power ratios 1/A.sub.1 to 1/A.sub.m.

REFERENCES:
patent: 4554510 (1985-11-01), Shaw et al.
patent: 4963832 (1990-10-01), Desurvire et al.
patent: 5003268 (1991-03-01), Tsuchiya
patent: 5054876 (1991-10-01), Grasso et al.
patent: 5128601 (1992-07-01), Lanser et al.
Pedersen et al. Optics Communications, vol. 81, #1.2, Feb. 1, 1991, pp. 23 & 25.
"Optical fiber amplifier module", Journal of the Institute of Electronics, Information and Communication Engineers, pp. 221-224, vol. 74, No. 3, Mar. 1990.

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