SOLITON TRAPPED IN 2X2 DIRECTIONAL FIBER COUPLER
ABSTRACT: The study of soliton
trapped in 2X2 directional fiber coupler is reported. By introducing an optical
signal with high intensity into two cores of directional fiber coupler will
create the soliton pulse in that coupling region. Soliton can carry the data in
an extended distance without distortion with high-speed, so that it is
promising an ideal communication system in
a long distance. In its propagation, the loss was still appears. It is
caused by the trapping of soliton pulses at the coupling region so that the
collision take placed.The collision of two coupled solitons was determined from
the Non-linear Schroodinger
Equation (NLSE) based
on the Coupling
Mode Theory (CMT).
The distance of collision can be reduced by decreasing the
separation of the two soliton pulses. Another way can be done by choosing a
value of medium misalignment saturation
H. for the value of H=0.1, it can be seen
clearly that length of pulse propagating more broaden. The relationship between
the amplitude and width of a soliton is also investigated. It is found that
increasing the width, the amplitude also increases. However,
the knowledge of
collision between two
trapped solitonsis important
and promises a good application forthe optical switching.
Keywords: Non-linear Schrodinger
Equation; Coupled Mode
Theory; Directional Fiber Coupler;Soliton Pulses
Author: Dedi Irawan, Saktioto,
H.M. Hairi, Jalil Ali
Journal Code: jpfisikagg130008
