SUPERCHANNEL POWER FREE PRE-EMPHASIS BASED ON TRANSMISSION CRITERIA

摘要

PROBLEM TO BE SOLVED: To provide methods and systems for superchannel power free pre-emphasis based on transmission criteria.SOLUTION: Methods and systems for superchannel power pre-emphasis based on transmission criteria may determine a guardband used when transmitting multiple superchannels over an optical transport network. The guardband values may depend on various transmission criteria, such as a reach distance for the superchannels and the number of reconfigurable add-drop multiplexer (ROADM) nodes over a given optical transmission path. The amount of power pre-emphasis for each superchannel may then be determined based on the actual guardband values used. Certain values used for superchannel power pre-emphasis based on transmission criteria may be pre-calculated and stored in advance.SELECTED DRAWING: Figure 9