NDLI: Graphene Covered on Microfiber Exhibiting Polarization and Polarization-dependent Saturable Absorption

Content Provider	IEEE Xplore Digital Library
Author	Xiaoying He Xiangchao Zhang Hao Zhang Min Xu
Copyright Year	1995
Abstract	Graphene has attracted a lot of research interest, especially as a saturable absorber (SA). However, improvement on thermal damage threshold is critical for the SA. Here, graphene covered on the microfiber is developed for this purpose by use of the light-graphene interaction via the evanescent field of the guided mode in the microfiber. Such interaction is numerically studied by using the theory of the electromagnetic field. Theoretical and experimental results indicate that graphene covered on the upper surface of the microfiber can be used as a polarization-dependent SA as well as an optical polarizer. When the radius size of the microfiber is down to 0.8 μm, its polarization extinction ratio is up to ~27 dB. When the radius of microfiber is up to ~3 μm, a polarization-dependent SA can be obtained with high thermal damage threshold of ~975.82 MWcm^-2 for p -polarization and ~1233.2 MWcm^-2 for s-polarization, and its polarization-dependent modulation depth varies from ~10.25% to ~12.85%.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	55
Ending Page	61
Page Count	7
File Size	5231761
File Format	PDF
ISSN	1077260X
Volume Number	20
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Graphene Optical surface waves Absorption Optical polarization Refractive index Optical fibers optical polarization microfiber optical saturable absorber
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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