Title :
A study on 1:N protected WDM systems and the architecture of an ADM for its implementation
Author :
Park, Youngil ; Park, Heesang ; Chae, Chang Joon
Author_Institution :
Access Network Res. Lab., Korea Telecom, Taejon, South Korea
Abstract :
The benefit and the restoration procedure of 1:N protected wavelength-division-multiplexed (WDM) system, which can reduce the cost of the system, is proposed. To implement it, a unique wavelength is assigned as a protection channel and it should be able to be dropped at any add-drop multiplexer (ADM) node in case of the original channel failure. A novel structure of an ADM, which is suitable for 1:N protected WDM system, is proposed, also. The performance of the proposed scheme is presented.
Keywords :
multiplexing equipment; optical communication equipment; optical fibre networks; synchronous digital hierarchy; telecommunication network reliability; wavelength division multiplexing; 1:N protected WDM systems; ADM architecture; ADM node; SDH systems; add-drop multiplexer; channel failure; performance; restoration procedure; system cost reduction; wavelength division multiplexed system; Add-drop multiplexers; Costs; Hardware; Optical receivers; Optical switches; Out of order; Power generation; Power system protection; Synchronous digital hierarchy; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
