Amplifier having pump fiber filter

Details Amplifier having pump fiber filter Amplifier having pump fiber filter

1993-10-14

1994-11-08

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359337, 372 6, G02B 626, H01S 330

Patent

active

053632346

ABSTRACT:
Disclosed is a fiber amplifier including a gain fiber and a source of pump power having a wavelength .lambda..sub.p coupled to one end thereof. A signal of wavelength .lambda..sub.s is introduced into a first end of the gain fiber, and an amplified signal of wavelength .lambda..sub.s is coupled from the second end thereof. The signal can traverse an undesired secondary path as well as a preferred primary path to the amplifier output. To prevent light of wavelength .lambda..sub.s from traversing the secondary path and thus increasing the amplifier noise figure, the amplifier includes attenuating fiber means for attenuating that portion of the signal of wavelength .lambda..sub.s that propagates in the secondary path.

REFERENCES:
patent: 3416089 (1968-12-01), Koester et al.
patent: 5008887 (1991-04-01), Kafka et al.
patent: 5067789 (1991-11-01), Hall et al.
patent: 5083874 (1992-01-01), Arder et al.
patent: 5115338 (1992-05-01), DiGiovanni et al.
patent: 5131069 (1992-07-01), Hall et al.
patent: 5216728 (1993-06-01), Charlton et al.
patent: 5218665 (1993-06-01), Grosso et al.
patent: 5233463 (1993-08-01), Grosso et al.
Hisao et al. "Influence of Reflected Light on Erbium-Doped Fiber Amplifiers for Optical AM Video Signal Transmission Systems", Journal of Lightwave Technology, vol. 10, No. 8, Aug. 1992, pp. 1132-1136.
Shigematsu et al.; "Optical Fiber Amplifiers for Optical AM-VSB Transmission"; vol. J75B-1, #'s pp. 314-322, 1992; Translation attached.
Massicott et al.; Electronics Letters, vol. 26, #14; Jul. 5, 1990; pp. 1038-1039.

Affiliated with

Also associated with

Rating

Amplifier having pump fiber filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amplifier having pump fiber filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier having pump fiber filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1787152