Optical performance monitoring techniques based on pilot tones for WDM network applications

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We report on the pilot-tone-based optical performance monitoring techniques for use in the wavelength-division multiplexing (WDM) network. We first described the operating principle of the pilot-tone-based monitoring technique and estimated its scalability by analyzing potential problems. We then reviewed the techniques proposed for monitoring various optical parameters of WDM signals-such as optical power, wavelength, optical path, and cross talk-using pilot tones. We also presented examples of various network elements using the pilot-tone-based monitoring technique. In addition, we reviewed the pilot-tone-based monitoring techniques used in adaptive compensators for chromatic dispersion and polarization-mode dispersion, and we discussed their limitations and possible solutions. For example, we demonstrated a simple technique for monitoring the chromatic dispersion and polarization-mode dispersion simultaneously, without their affecting each other, by scrambling the state of polarization of the optical signal. © 2003 Optical Society of America.
Publisher
Optical Society of America
Issue Date
2004
Language
English
Citation

JOURNAL OF OPTICAL NETWORKING, v.3, no.7, pp.510 - 533

ISSN
1536-5379
URI
http://hdl.handle.net/10203/85419
Appears in Collection
EE-Journal Papers(저널논문)
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