Cost-effective optical chirped duobinary transmitter using an electroabsorption modulated laser

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We propose and demonstrate a cost-effective way to implement a 10-Gb/s chirped duobinary (CDB) transmitter using an electroabsorption modulated laser (EML) followed by a LiNbO3 Mach-Zehnder modulator both driven with binary signals. Successful transmission is achieved over 285 km of dispersion-uncompensated standard single-mode fiber without significantly increasing the complexity and cost of the transmitter, compared to conventional duobinary transmitters. The demonstrated CDB signals exhibit a superior performance to conventional duobinary signals, in terms of back-to-back receiver sensitivity and transmission distance. We achieve consistent transmission performance with three EMLs obtained from two different vendors, each having different chirp and transmission characteristics. Therefore, we believe the use of EMLs greatly reduces the implementation issues of 10-Gb/s CDB transmission systems.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2005-04
Language
English
Article Type
Article
Keywords

TRANSMISSION; DISPERSION

Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.17, no.4, pp.905 - 907

ISSN
1041-1135
DOI
10.1109/LPT.2005.843979
URI
http://hdl.handle.net/10203/201825
Appears in Collection
EE-Journal Papers(저널논문)
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