Crosstalk suppression in a multipath optical amplifier

Details Crosstalk suppression in a multipath optical amplifier Crosstalk suppression in a multipath optical amplifier

1997-09-09

2000-07-04

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Correction of deleterious effects

359139, 359160, 359174, 385 24, 385 37, H01J 516, H01S 3103, H04B 1016

Patent

active

060847042

ABSTRACT:
A multi-amplification path optical amplifier including a first amplification path for propagating and amplifying a first in-band optical communication signal, including a spectrally selective filter for substantially blocking the propagation and amplification of an out-of-band optical communication signal along the first amplification path, and a second amplification path for propagating and amplifying a second in-band optical communication signal, including a spectrally selective filter for substantially blocking the propagation and amplification of an out-of-band optical communication signal along the second amplification path, wherein the location of the spectrally selective filters in each respective amplification path is selected so that a target noise figure performance and a target output power performance can be obtained from the device. The spectrally selective insertion losses suppress crosstalk or optical leakage that gives rise to multipath interference, return loss, and self oscillation.

REFERENCES:
patent: 4720168 (1988-01-01), Hicks
patent: 5513029 (1996-04-01), Roberts
patent: 5652675 (1997-07-01), Shibuya
patent: 5742416 (1998-04-01), Mizrahi
patent: 5812306 (1998-09-01), Mizrahi
patent: 5815308 (1998-09-01), Kim et al.
Yadlowsky, M; options and photonics levels, vol. 16, pp. 307-324, abstract only herewith, Jul. 21, 1997.

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