Colorless and directionless multi-degree reconfigurable optical add/drop multiplexers

The reconfigurable optical add/drop multiplexer (ROADM) has become one of the most important elements in the DWDM network. The next generation multi-degree ROADM requires two main features: colorless and directionless. Colorless means that add/drop ports are not wavelength specific, and directionles...

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Bibliographic Details
Published inThe 19th Annual Wireless and Optical Communications Conference (WOCC 2010) pp. 1 - 5
Main Authors Ji, Philip N, Aono, Yoshiaki
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2010
Subjects
Add-drop multiplexers
colorless
directionless
non-blocking
Optical add-drop multiplexers
Reconfigurable optical add/drop multiplexer
wavelength cross-connect
wavelength-selective switch
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Summary:The reconfigurable optical add/drop multiplexer (ROADM) has become one of the most important elements in the DWDM network. The next generation multi-degree ROADM requires two main features: colorless and directionless. Colorless means that add/drop ports are not wavelength specific, and directionless feature enables any transponder to be connected to any degree. In this paper we review and analyze different multi-degree ROADM node architectures that offer full colorless and directionless features. Their key characteristics and properties, including optical loss, size, cost, modularity and upgradability, are compared and discussed.
ISBN:142447597X
9781424475971
ISSN:2379-1268
2379-1276
DOI:10.1109/WOCC.2010.5510664