All-optical intensity modulator by polarization dependent graphene-microfiber waveguide

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2017 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors

Date

2017-09-29

Department

Department of Electronics and Nanoengineering

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Mcode

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Language

en

Pages

9

Series

IEEE Photonics Journal, Volume 9, issue 5

Abstract

We demonstrated all-optical intensity modulator based on polarization-dependent graphene-covered microfiber (GMF) waveguide. By controlling the polarization mode of incident light, a greatly adjustable enhanced interaction between the propagating light and the graphene can be obtained via the evanescent field of the microfiber. By employing 980-nm pump light and 1550-nm signal light in continuous wave, the strong light–graphene interaction enables a maximum modulation depth of ∼20.86 dB, and by pumping 980 nm wave pulses, we obtained the temporal response characteristics of signal light with modulation rate of 5.13 kHz. This all-optical intensity modulator is compatible with optical fiber systems, and features with ease of fabrication, and steerable high modulation depth, which show potential in graphene's applications such as all-optical switching and all-optical communications.

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Keywords

fiber optics systems, Graphene, Optical fibers, Optical modulation, Optical polarization, Optical pumping, Photonic materials, Waveguide devices

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DOI

10.1109/JPHOT.2017.2757957

Citation

Wang, R, Li, D, Wu, H, Jiang, M, Sun, Z, Tian, Y, Bai, J & Ren, Z 2017, 'All-optical intensity modulator by polarization dependent graphene-microfiber waveguide', IEEE Photonics Journal, vol. 9, no. 5, 7105708. https://doi.org/10.1109/JPHOT.2017.2757957

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https://urn.fi/URN:NBN:fi:aalto-201711217580

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[article-cris] Sähkötekniikan korkeakoulu / ELEC