Improvements in or relating to signal transmission in an...

H - Electricity – 04 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04B 10/17 (2006.01) H01S 3/30 (2006.01)

Patent

CA 2462578

A method of reducing Raman tilt in a transmission apparatus capable of transmitting a plurality of signals, occupying contiguous channels in a transmission band, through a length of optical transmission cable which exhibits the Raman effect of transferring energy from the shorter wavelength sinals at one end of the transmission band towards the longer wavelength signals at the other end of the transmission band, including the transmission of half the maximum number of signals at twice the normal channel frequency spacing at a higher-than-normal level and the transmission signals in selected ones, fewer than all, of the available channels at the normal channel spacing at a normal power level. As new channels are added at the lower frequency channel spacing, the powers of both neighbouring channels are reduced to the normal power level.

L'invention concerne un procédé de réduction de l'inclinaison Raman dans un appareil de transmission capable de transmettre une pluralité de signaux, occupant des canaux contigus dans une bande de transmission, à travers la longueur d'un câble de transmission optique, montrant l'effet Raman de transfert d'énergie des signaux à longueur d'onde plus courte à une extrémité de la bande de transmission vers les signaux à longueur d'onde plus longue à l'autre extrémité de la bande de transmission. Ce procédé consiste en la transmission de la moitié du nombre maximum de signaux à un espacement de fréquence de canal deux fois supérieur à l'espacement de fréquence normal à un niveau de puissance supérieur au niveau normal et la transmission de signaux dans certains des canaux disponibles au canal normal séparant à un niveau de puissance normal. Etant donné que des nouveaux canaux sont ajoutés au niveau de la séparation des canaux à faible fréquence, les puissances des deux canaux voisins sont réduites au niveau de puissance normal.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Improvements in or relating to signal transmission in an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improvements in or relating to signal transmission in an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improvements in or relating to signal transmission in an... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1845824

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.