Fiber Nonlinearities and Their Impact on Transmission Systems
Fiber Nonlinearities and Their Impact on Transmission Systems
Fiber Nonlinearities and Their Impact on Transmission Systems
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Self-Phase Modulati<strong>on</strong> (SPM)<br />
• SPM occurs when an intensity-modulated<br />
signal travels through a fiber<br />
• The signal is broadened in frequency<br />
domain by<br />
∆B<br />
= γL<br />
e<br />
dP<br />
dt<br />
• SPM can be used to compensate for<br />
positive chromatic dispersi<strong>on</strong> (pulse<br />
narrowing)<br />
Tuesday, March 22, 2005<br />
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