Phase shift of amplitude-modulated optical signals in graphene oxide water dispersions due to thermal lens focal length oscillation
We analyze the phase shift induced in an amplitude-modulated laser beam propagating through a water dispersion of graphene oxide sheets in a fiber-to-fiber U-bench. This phase shift arises from the thermally induced nonlinear refraction in the sample. The system exhibits strong optical limiting perf...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/34709 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/34709 |
| Access Level: | acceso abierto |
| Palabra clave: | 535.57 535.374 Nonlinear optics fibers Thermal lensing Óptica (Física) 2209.19 Óptica Física |
| Sumario: | We analyze the phase shift induced in an amplitude-modulated laser beam propagating through a water dispersion of graphene oxide sheets in a fiber-to-fiber U-bench. This phase shift arises from the thermally induced nonlinear refraction in the sample. The system exhibits strong optical limiting performance for weak continuous-wave signals. A theoretical model including beam propagation and thermal lens focal length oscillation reproduces the experimental findings. |
|---|