Optical amplifier using optical circulator and fiber amplifier

Details Optical amplifier using optical circulator and fiber amplifier Optical amplifier using optical circulator and fiber amplifier

1996-12-16

1998-10-13

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359347, 372 6, H01S 3094, H01S 3091, G02B 2728

Patent

active

058221131

ABSTRACT:
An optical amplifier achieves multistage amplification with a four port optical circulator with fiber amplifiers and Faraday rotators and mirrors connected to at least two of the ports. The fiber amplifiers permit the signal to pass through the fiber amplifiers twice.

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patent: 5481391 (1996-01-01), Giles
patent: 5652675 (1997-07-01), Shibuya
Sato et al, IEEE Photonics Tech. Letters, vol. 6, #2, Feb. 1994, pp. 202-204.
Takashi et al, Conf. Opt. Fiber Comm., vol. 4, pp. 233-234, Feb. 20, 1994; abst. only herewith.
Sato et al, Jour. Lightwave Tech., vol. 10, #1, Jan. 1992, pp. 78-83.
"Highly Efficient Configuration Of Erbium-Doped Fiber Amplifier", ECOC Nishi, Aida, Nakagawa, vol. 1, 1990, pp. 99-102.

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