Details

Autor(en) / Beteiligte

• Lozano-Crisóstomo, Néstor
• García-Melgarejo, Julio C.
• May-Arrioja, Daniel A.
• Javier Sánchez-Mondragón, J.

Titel

Spectral narrowing due to linear coupling in two-core fibers

Ist Teil von

• Journal of the Optical Society of America. B, Optical physics, 2016-08, Vol.33 (8), p.1607-1615

Erscheinungsjahr

2016

Quelle

Optica Publishing Group Journals

Beschreibungen/Notizen

• We develop for the first time, to the best of our knowledge, a comprehensive theory to describe the nonlinear propagation of picosecond pulses through symmetric two-core fibers (TCFs). Considering the elementary TCF switching process, we derive an exact analytical expression for the nonlinear phase shift of a picosecond pulse of arbitrary shape and chirp. Applying our results to an unchirped Gaussian input pulse, we demonstrate spectral narrowing in the propagation of the pulse through a TCF. Our results show that the linear coupling induces that spectral narrowing. The amount of narrowing of the pulse spectra depends on the peak power of the input pulse.