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Journal Article Optical beat noise reduction in subcarrier multiplexed optical link using dual current modulation of master and slave lasers
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Authors
Yong-Yuk Won, Hyun-Do Jung, Sang-Kook Han, Eui-Suk Jung, Byung-Whi Kim
Issue Date
2005-01
Citation
IEEE Photonics Technology Letters, v.17, no.1, pp.193-195
ISSN
1041-1135
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LPT.2004.837745
Abstract
A novel method to reduce optical beat noise, (OBN) which is critical in subcarrier multiplexed-based optical access link is suggested. The chirped optical signal was generated by using dual current modulation through master and slave lasers. The sidelobes of the slave laser decreased up to - 90 dBm close to the noise floor. The OBN was reduced by 20 dB because of the spectral broadening of the slave laser resulted from the increased chirp. © 2005 IEEE.