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arXiv · 1402.5814

Platform for enhanced light-graphene interaction length and miniaturizing fiber stereo-devices

Fei Xu·Jun-long Kou·Jin-hui Chen·Ye Chen·Yan-qing Lu
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Abstract

Sufficient light-matter interactions are important for waveguide-coupled graphene optoelectronic devices. Using a microfiber-based lab-on-a-rod technique, we present a platform for ultra-long light-graphene interaction and design graphene-integrated helical microfiber (MF) devices. Using this approach, we experimentally demonstrate an in-line stereo polarizer by wrapping an MF on a rod pretreated with a graphene sheet. The device operates as a broadband (450 nm wavelength) polarizer capable of achieving an extinction ratio (ER) as high as ~8 dB/coil in the telecommunication band. Furthermore, we extend this approach to successfully demonstrate a high-Q graphene-based single-polarization resonator, which operates with an ER of ~11 dB with excellent suppression of polarization noise. The fiber-coil resonator shows great potential for sensing applications and gyro-integration. By specializing the rod surface and coil geometry, we believe the preliminary results reported herein could contribute to advancing the research for lab-on-a-rod graphene-MF-integrated devices.

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Fei Xu, Jun-long Kou, Jin-hui Chen, Ye Chen, Yan-qing Lu. 2014-02-24. Platform for enhanced light-graphene interaction length and miniaturizing fiber stereo-devices. https://doi.org/10.1364/optica.1.000307

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