Abstract
We intent to investigate the dynamics and steering characteristics
of an optical pulse propagation through photonic crystal fiber coupler (PCFC)
using the projection operator method (POM) at 850 nm. For the proposed study,
we begin with the analysis of silica PCFC design. From the proposed design,
we examine the propagation of Gaussian pulse through PCFC, by means of coupled
nonlinear Schrödinger equations. By employing POM, we derive the equations
of motion describing the dynamics of the pulse parameters, called collective
variables (CVs), namely the amplitude, pulse width, phase and chirp. The corresponding
results obtained through POM are compared and verified numerically by split
step Fourier method (SSFM). Furthermore, we propose a novel chloroform filled
PCF structure that operates as a single mode at 850 nm, featuring an enhanced
dispersion and nonlinearity for efficient switching, thus enabling to accomplish
switching at a low input pulse power and low loss over shorter distances.
Efficient optical pulse switching through both the designs are demonstrated
through the simulation of the transmission curve. From the transmission curve,
we infer that efficient switching can be achieved at relatively low input
power in the proposed chloroform filled PCF.
© 2012 IEEE
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