Phase shift of amplitude-modulated optical signals in graphene oxide water dispersions due to thermal lens focal length oscillation
نویسندگان
چکیده
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. c © 2015 Optical Society of America
منابع مشابه
Thermally induced all-optical inverter and dynamic hysteresis loops in graphene oxide dispersions.
We experimentally study the temporal dynamics of amplitude-modulated laser beams propagating through a water dispersion of graphene oxide sheets in a fiber-to-fiber U-bench. Nonlinear refraction induced in the sample by thermal effects leads to both phase reversing of the transmitted signals and dynamic hysteresis in the input-output power curves. A theoretical model including beam propagation ...
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