Ultrashort Pulse Propagation in Nonlinear Dispersive Fibers
The use of silica fibers for transmission of optical pulses has become widespread, as is evident from the recent advances in optical fiber communications (Basch, 1986; Miller and Kaminow, 1988). For pulses not too short (pulse width > 1 ns) and not too intense (peak power < 10 mW), the fiber plays a passive role (except for energy loss) and acts as a transporter of optical pulses from one place to another without significantly affecting their shape or spectrum. However, as pulses become shorter and more intense, two physical mechanisms, chromatic dispersion and index nonlinearity, both intrinsic to the silica material, start to affect the pulse shape and spectrum during propagation.
KeywordsFiber Length Pulse Shape Pump Pulse Optical Pulse Group Velocity Dispersion
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