Parabolic pulse generation with active or passive dispersion decreasing optical fibers

Nonlinear pulse propagation in dispersion decreasing fibers

By numerically solving the nonlinear Schrodinger equation, we analyze pulse propagation through dispersion decreasing optical fibers (DDFs) in which the core radius varies along the length of the fiber; this in turn leads to a variation of dispersion as well as mode effective area along the length of the fiber. We calculate an optimum core radius profile required to create a local balance betwe...

High-repetition-rate ultrashort pulse generation in nonlinear fibers with exponentially decreasing dispersion

A simple method for the generation of ultrashort pulse train with high-repetition-rate is proposed and demonstrated numerically. OCIS codes: (320.5520) Pulse compression; (320.5540) Pulse shaping

Theory of parabolic pulse propagation in nonlinear dispersion decreasing optical fiber amplifiers

Parabolic pulse generation in a dispersion-decreasing solid-core photonic bandgap Bragg fiber

We analyze the interplay of nonlinearity and dispersion in a dispersion-decreasing photonic bandgap Bragg fiber as a new platform for generating parabolic pulses. A suitably designed linearly tapered, low-index-contrast, solid-core Bragg fiber – amenable to fabrication by conventional modified chemical vapor deposition technology – is shown to yield stable parabolic pulses. The fiber design was...

Pulse confinement in optical fibers with random dispersion.

Short-range correlated uniform noise in the dispersion coefficient, inherent in many types of optical fibers, broadens and eventually destroys all initially ultra-short pulses. However, under the constraint that the integral of the random component of the dispersion coefficient is set to zero (pinned), periodically or quasi-periodically along the fiber, the dynamics of the pulse propagation cha...