Fixed-point attractor for chirp in nonlinear waveguide arrays
Abstract
The propagation of ultrashort optical pulses in an AlGaAs waveguide array is studied using frequency-resolved optical gating measurements. In the nonlinear regime, the measurements show that the pulses at the output of the array evolve toward a set chirp value that is independent of the input chirp. Simulations reproduce the experimental results. The observations can be described as a fixed-point attractor on a chirp-intensity map.
- Publication:
-
Physical Review A
- Pub Date:
- March 2012
- DOI:
- 10.1103/PhysRevA.85.031806
- Bibcode:
- 2012PhRvA..85c1806H
- Keywords:
-
- 42.65.Wi;
- 42.65.Hw;
- 42.65.Re;
- Nonlinear waveguides;
- Phase conjugation;
- photorefractive and Kerr effects;
- Ultrafast processes;
- optical pulse generation and pulse compression