Título
Large signal-to-noise-ratio enhancement of ultrashort pulsed optical signals using a power-symmetric nonlinear optical loop mirror with output polarisation selection
Autor
BALDEMAR IBARRA ESCAMILLA
EVGENY KUZIN
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
A numerical study of a fibre-based scheme for the regeneration of ultrashort-pulsed optical signals is presented. The setup is made of a power-symmetric Nonlinear Optical Loop Mirror (NOLM) followed by a polariser. The NOLM operates through nonlinear polarisation rotation, and includes twisted, anomalousdispersion fibre and a quarter-wave retarder. When the orientations of the linear input polarisation and of the output polariser are properly adjusted, the output energy characteristic flattens at high power, a property that can be used to eliminate large amplitude fluctuations on the logical ones of an optical signal. When the input pulse parameters closely match those of fundamental solitons or of stable elliptically polarised solitary waves, a wide and flat plateau is obtained, allowing the reduction of ∼30% amplitude fluctuations to less than 1%. Very large amplitude fluctuations beyond 50% can also be reduced down to a few %. Although the output pulses are slightly chirped, they are free of pedestal, thanks to the zero low-power transmission of the NOLM, which also allows the simultaneous regeneration of logical zeros. We believe that this setup will be useful for the regeneration of highly degraded signals in future ultrafast transmission networks.
Editor
Optical Fiber Technology
Fecha de publicación
2009
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Pottiez, O., et al., (2009). Large signal-to-noise-ratio enhancement of ultrashort pulsed optical signals using a power-symmetric nonlinear optical loop mirror with output polarisation selection, Optical Fiber Technology. Vol.15(2) 172–180
Repositorio Orígen
Repositorio Institucional del INAOE
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