Self-amplitude-modulation of optical pulses in nonlinear dispersive fibers
- 1 October 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 36 (8), 3862-3867
- https://doi.org/10.1103/physreva.36.3862
Abstract
We consider propagation of optical pulses in the anomalous dispersive region of single-mode fibers after including the effects of Kerr-type nonlinearity. It is found that the pulse develops an internal structure with deep amplitude modulation. We show that this self-amplitude-modulation of pulses is related to the modulation instability of continuous-wave optical beams in nonlinear dispersive fibers. The initiation of this phenomenon does not require an external probe or spontaneous emission. Numerical results show that self-phase-modulation broadens the power spectrum enough to encompass the frequency at which self-amplitude-modulation provides the maximum gain. The amplification of these sidebands manifests as a breaking of the optical pulse into several subpulses. For negligible loss, the pulse breakup may also be viewed as the internal structure of a high-order soliton. However, modulation instability appears to provide a simpler interpretation and explains the features of numerical simulation and experiments.Keywords
This publication has 30 references indexed in Scilit:
- Nonlinear pulse distortion in single-mode optical fibers at the zero-dispersion wavelengthPhysical Review A, 1986
- Analytic and numerical study of pulse broadening in nonlinear dispersive optical fibersJournal of the Optical Society of America B, 1986
- Soliton propagation in long fibers with periodically compensated lossIEEE Journal of Quantum Electronics, 1986
- All-fiber pulse compression at 132 μmOptics Letters, 1985
- Solitons in optical communicationsIEEE Journal of Quantum Electronics, 1983
- Variational approach to nonlinear pulse propagation in optical fibersPhysical Review A, 1983
- Observation of pulse restoration at the soliton period in optical fibersOptics Letters, 1983
- Signal transmission by optical solitons in monomode fiberProceedings of the IEEE, 1981
- Experimental Observation of Picosecond Pulse Narrowing and Solitons in Optical FibersPhysical Review Letters, 1980
- Transmission of stationary nonlinear optical pulses in dispersive dielectric fibers. I. Anomalous dispersionApplied Physics Letters, 1973