Title :
Extinction ratio effect for high-speed optical fiber transmissions
Author :
Li, Zhuang ; He, Yongqi ; Jørgensen, Bo Foged ; Pedersen, Rune J.
Author_Institution :
Beijing Univ. of Light Ind., China
Abstract :
In conventional optical transmissions, the extinction ratio is expected to be as high as possible in order to get better receiver sensitivity. But for high-speed long distance optical transmissions, the system performance is mainly dependent on the self-phase modulation (SPM) when the input optical power is sufficiently high. It is possible that a large improvement of the receiver sensitivity can be obtained by using an input signal with finite extinction ratio when the SPM takes effect. In this paper, the interaction of the fiber dispersion, SPM, prechirp and extinction ratio is investigated and the optimisation of system performance is implemented for a 10 Gbit/s long distance unrepeatered unregenerate optical transmissions
Keywords :
chirp modulation; optical fibre communication; optical fibre dispersion; optical fibre theory; optical modulation; optical receivers; self-phase modulation; 10 Gbit/s; SPM; chirp parameter; extinction ratio; fiber dispersion; high-speed optical fiber transmissions; input optical power; input signal; long distance optical transmissions; receiver sensitivity; self-phase modulation; single mode fibre; system performance optimisation; unrepeatered unregenerated optical transmissions; Extinction ratio; Fiber nonlinear optics; High speed optical techniques; Nonlinear optics; Optical fibers; Optical modulation; Optical receivers; Optical sensors; Scanning probe microscopy; System performance;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.740994
