Analysis of coherent and incoherent interactions of amplitude shifted solitons in optical fibres

• Nonlinear interaction between pulses can severely reduce the bit-rate of an optical communication system. One way of reducing this interaction is amplitude shifting of consequtive pulses. In the present work a detailed analytical and numerical investigation is made of the coherent and incoherent interactions between two soliton pulses of unequal amplitudes. For the case of coherent interaction the obtained expressions for the pulse parameters in terms of initial phase and amplitude differences give a clear and explicit prediction of the reduction of the interaction strength for unequal soliton amplitudes. A comparison with numerical simulation results shows good agreement. For the case of incoherent soliton interaction it is found that the dependence of the interaction strength on the amplitude difference is weak. 

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

Computer simulation

Inverse problems

Nonlinear equations

Nonlinear optics

Numerical analysis

Optical communication

Optical fibers

Oscillations

Perturbation techniques

Variational techniques

Amplitude shifting

Coherent soliton interaction

Incoherent soliton interaction

Inverse scattering transform

Soliton pulses

Solitons

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)