Transmission of directly modulated 2.5-Gb/s signals over 250-km of nondispersion-shifted fiber by using a spectral filtering method

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We demonstrate 250-km nondispersion-shifted fiber transmission of directly modulated 2.5-Gb/s signals. The chirping-induced power penalty is reduced by using a spectral filter whose transmission peak is tuned to ''mark'' wavelength of the modulated laser output. A well-known intensity modulation with a sufficiently high extinction ratio is used to suppress the intersymbol interference induced by nonuniform frequency modulation response of semiconductor Iasers. The observed results are explained theoretically by using eye closure penalty.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
1996-12
Language
English
Article Type
Article
Keywords

DFB LASERS; ASK; FSK

Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.8, no.12, pp.1725 - 1727

ISSN
1041-1135
URI
http://hdl.handle.net/10203/776
Appears in Collection
EE-Journal Papers(저널논문)
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