Monitoring distributed gain in an optical transmission system

Details Monitoring distributed gain in an optical transmission system Monitoring distributed gain in an optical transmission system

2005-01-04

2005-01-04

Pascal, Leslie (Department: 2633)

Optical communications

Optical repeater system

Monitoring

C398S031000, C398S032000, C398S037000, C398S038000, C398S028000, C398S029000, C398S173000, C398S174000, C398S175000, C398S176000, C359S333000, C359S334000, C359S349000

Reexamination Certificate

active

06839523

ABSTRACT:
In a method and system for evaluating distributed gain in an optical transmission system, a data signal and a residual pump laser signal propagating in opposite directions within a waveguide are monitored. Modulation of the residual pump laser signal is correlated with low frequency components of the data signal. This correlation is used to determine cross-talk between the data signal pump laser signals, as a function of location within the waveguide. The distributed gain is then evaluated from the cross-talk, using a known relationship, or proportionality, between gain and cross-talk.

REFERENCES:
patent: 5513029 (1996-04-01), Roberts
patent: 5963312 (1999-10-01), Roberts
patent: 6064501 (2000-05-01), Roberts et al.
patent: 6072614 (2000-06-01), Roberts
patent: 6111676 (2000-08-01), Lemus et al.
patent: 6181464 (2001-01-01), Kidorf et al.
patent: 6327250 (2001-12-01), Chen et al.
patent: 6417958 (2002-07-01), Du et al.
patent: 6574037 (2003-06-01), Islam et al.
patent: 6633712 (2003-10-01), Dennis et al.
V.J. Mazurczyk et al. IEEE Photonics Technology Letters, vol. 12. No. 11, Nov. 2000. “Accumulation of Gain Tilt in WDM Amplified Systems Due to Raman Crosstalk.”*
Ming-Seng Kao. Journal of Lightware Technology. vol. 7, No. 9 Sep. 1989. “Signal Light Amplification by Stimulated Raman Scattering in an N-Channel WDM Optical Fiber Communication System.”

Affiliated with

Also associated with

Rating

Monitoring distributed gain in an optical transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monitoring distributed gain in an optical transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring distributed gain in an optical transmission system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3372955