Journal article
Interferometric crosstalk reduction by phase scrambling
Interferometric crosstalk, arising from the detection of undesired signals at the same nominal wavelength, may introduce large power penalties and bit-error rate (BER) floor significantly restricting the scalability of optical networks. In this paper, interferometric crosstalk reduction in optical wavelength-division multiplexing (WDM) networks by phase scrambling is theoretically and experimentally investigated.
Enhancement of 7- and 5-dB tolerance toward crosstalk is measured in a 2.5-Gb/s transmission link of 100 km and 200 km of SSMF, respectively. This result proves the feasibility of optical networking in the local area network/metropolitan area network (LAN/MAN) domain while tolerating the relatively high crosstalk levels of present integrated optical switching and cross-connect technology.
Experiment is in good agreement with theory. Recommendations on the use of phase scrambling to reduce crosstalk in WDM systems are given.
Language: | English |
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Publisher: | IEEE |
Year: | 2000 |
Pages: | 637,638,639,640,641,642,643,644,645,646 |
ISSN: | 15582213 and 07338724 |
Types: | Journal article |
DOI: | 10.1109/50.842077 |
100 km 2.5 Gbit/s 200 km Bit error rate Gb/s transmission link Integrated optics LAN MAN Optical crosstalk Optical fiber networks Optical interferometry Scalability Signal detection WDM networks Wavelength division multiplexing Wavelength measurement bit-error rate floor integrated optical switching interferometric crosstalk reduction large power penalties light interferometry local area network/ metropolitan area network metropolitan area networks nominal wavelength optical crosstalk optical fibre LAN optical network scalability optical networking optical wavelength-division multiplexing networks phase scrambling photonic switching systems relatively high crosstalk levels undesired signal detection wavelength division multiplexing