Double pass optical amplifier with unidirectional...

Details Double pass optical amplifier with unidirectional... Double pass optical amplifier with unidirectional...

2006-01-31

2006-01-31

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Dispersion compensation

Reexamination Certificate

active

06992817

ABSTRACT:
1—“A DOUBLE PASS OPTICAL AMPLIFIER WITH UNIDIRECTIONAL COMPENSATION OF CHROMATIC DISPERSION AND OBSTRUCTION OF BACKSCATTERING”, composed by an EDFA, whose input/output stage is integrated by a circulator (6), and the amplification stage is composed by a pump laser (1) and an Erbium-doped fiber connected to a multiplexer (3), said amplifier, in which the optical signal undergoes an initial amplification while passing through the Erbium-doped fiber on the way through the fiber and a second amplification on the way back of the same fiber, presents, after the amplification stage, at least one dispersion compensating fiber (11), whose input and output are connected to the free extremity of the Erbium-doped fiber (2), through at least one device (12) arranged in the circuit in order to prevent the backscattering generated in the dispersion compensating fiber (11) from returning to the Erbium-doped fiber (2) and to allow the signal to travel through the dispersion compensating fiber (11) only once and in one direction, and then return to the amplifier circuit.

REFERENCES:
patent: 5404413 (1995-04-01), Delavaux et al.
patent: 6332054 (2001-12-01), Ito
patent: 6678087 (2004-01-01), Masuda et al.
patent: 6785043 (2004-08-01), Hwang et al.
patent: 2002/0008901 (2002-01-01), Kinoshita
patent: 2002/0109909 (2002-08-01), Kinoshita
patent: 411046167 (1999-02-01), None
S. Nishi et al; “Highly Efficient Configuration of Erbium—Doped Fiber Amplifier”, ECOC' 90 Amsterdam, vol. 1, pp. 99-102, 1990.
C.R. Giles; “Suppression of Polarisation Holeburning-induced Gain Anisotropy in Reflective EDFAs”, Electronics Letters, vol. 30, No. 12, pp. 976-977, 1994.

Affiliated with

Also associated with

Rating

Double pass optical amplifier with unidirectional... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double pass optical amplifier with unidirectional..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double pass optical amplifier with unidirectional... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3540163