Journal
PHOTONICS RESEARCH
Volume 7, Issue 1, Pages 8-13Publisher
OPTICAL SOC AMER
DOI: 10.1364/PRJ.7.000008
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Funding
- International Science and Technology Cooperation Project [2014-10780]
- National Natural Science Foundation of China (NSFC) [11874299]
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Graphene microfibers are burgeoning modulators with great potential in all-optical communication. One of the critical issues that remains to be understood is the dynamic mechanism of light-graphene interaction. Here, we propose a power dependent modulation by using 980 nm pump light and 1064 nm signal light via graphene microfiber, and the results show a strong transmission reduction and frequency blue shift with the increase of pump power. The experimental observation is attributed to a stimulated Brillouin scattering process induced by the pump light. Power and frequency variations are a result of energy transition of the scattered phonon in the fiber. This work reveals the nonlinear effect process in the light-graphene interaction and provides a new method for power and frequency control with graphene all-optical modulation. (C) 2018 Chinese Laser Press
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