Cutoff solitons in axially uniform systems

Elefterios Lidorikis, Marin Soljačić, Mihai Ibanescu, Yoel Fink, J. D. Joannopoulos
2004 Optics Letters  
The optical response of axially uniform nonlinear photonic bandgap fibers is studied theoretically. We observe gap-soliton-like generation and associated bistability, similar to what is typically found in periodically modulated nonlinear structures. This response stems from the nature of the guided-mode dispersion relations, which involve a frequency cutoff at zero wave vector. In such systems, solutions with zero group velocities and minimal coupling to radiation modes come in naturally. We
more » ... in naturally. We term such solitons "cutoff solitons"; they provide an interesting alternative to gap solitons in periodically index-modulated fibers for in-fiber all-optical signal processing.
doi:10.1364/ol.29.000851 pmid:15119399 fatcat:gaf7ofsmd5bclemgmsoriaihuy