H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01) H04B 10/16 (2006.01) H04B 10/17 (2006.01) H04J 14/02 (2006.01)
Patent
CA 2298272
Substantially error-free communications is achieved in an optical communication system that includes optical amplifiers by detecting bits transmitted in the amplified optical signal using a detection threshold that is derived as a function of a maximum power level associated with a first bit value, e.g., bit "0", and a minimum power level associated with a second bit value, e.g., bit "1". Importantly, this detection scheme can be used to accurately detect bit patterns in the amplified signal even in the presence of nonlinear distortions caused by gain variations, such as inter-modal distortion and saturation induced crosstalk. In a wavelength division multiplexed (WDM) system comprising semiconductor optical amplifiers, for example, the detection threshold can be set at a level corresponding to P TOTAL/2N, where P TOTAL represents the total power in the WDM signal and N represents the number of optical channels in the WDM signal. According to another aspect of the invention, the effect of gain fluctuations becomes smaller as the number of channels increase. In particular, a smoothing effect is realized for the total effective saturation power as gain variations decrease as a function of an increase in the number of channels. As such, the performance of a semiconductor optical amplifier according to the principles of the invention approaches the linear performance of fiber amplifiers as the number of channels increases.
Chraplyvy Andrew Roman
Jopson Robert Meachem
Srivastava Atul Kumar
Sulhoff James William
Sun Yan
Kirby Eades Gale Baker
Lucent Technologies Inc.
LandOfFree
Lightwave communication systems using semiconductor optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lightwave communication systems using semiconductor optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lightwave communication systems using semiconductor optical... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1913673