Abstract
The performance of a nonlinear optical loop mirror (NOLM) device
constructed with a dispersion decreasing fiber (DDF) operating in the
soliton and quasi-soliton regime is investigated numerically. Results
showed that the soliton regime present best behavior when compared with
the quasi-soliton regime. In the quasi-soliton regime, the transmitted
pulse present strong shaping effects (compression). However in the
soliton regime, the transmitted pulses present fewer fluctuations in the
time duration with pump power. Our simulations considering four
different profiles, linear, hyperbolic, exponential and Gaussian
conclude that, in average, the hyperbolic profile gives the lowest pump
power for the first, second and third transmission peaks of transmission
comparing with the other profiles. The Gaussian profile presents the
worse behavior. It was also observed that with a proper choice of the
dispersion profile we could have a transmitted pulse with no distortion
in the soliton regime. For the quasi-soliton regime, strong compression
was observed.
Users
Please
log in to take part in the discussion (add own reviews or comments).