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Proceedings Paper

Using fiber with negative dispersion and electro-absorption modulator to alleviate both dispersion- and nonlinearity-induced penalties
Author(s): Jian Song; Chongcheng Fan; Zhixing Yang
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Paper Abstract

The proper combination of source linewidth enhancement factor (alpha) through electro-absorption modulator (EAM) and fiber dispersion coefficient D in wavelength division multiplexed (WDM) optical transmission systems can greatly extend the dispersion-limited system regeneration length Lreg (up to 70% for a 16 X 10 Gb/s X 400 km system). Four-wave-mixing-induced power penalty will only slightly increase due to the none-zero fiber dispersion, although more Erbium-doped fiber amplifiers are needed to compensate for the fiber attenuation. This scheme can also effectively suppress the modulation instability and self-phase modulation, etc. In general, when dispersion management or dispersion compensation measures are adopted for WDM systems using EAM with positive (alpha) , slightly over-compensation the fiber dispersion for all channels can effectively extend Lreg or reduce the dispersion-induced eye opening penalty if fiber nonlinearities remain tolerable.

Paper Details

Date Published: 20 September 1996
PDF: 8 pages
Proc. SPIE 2893, Fiber Optic Components and Optical Communication, (20 September 1996); doi: 10.1117/12.252000
Show Author Affiliations
Jian Song, Chinese Univ. of Hong Kong (Hong Kong)
Chongcheng Fan, Tsinghua Univ. (China)
Zhixing Yang, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 2893:
Fiber Optic Components and Optical Communication
Kam Tai Chan; Shuisheng Jian; Franklin F. Tong, Editor(s)

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