Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit

Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit

Optical saturable absorption through a monolayer graphene vertically inserted between fibers and overlaid on an ion-exchanged waveguide was measured for picosecond switching application. In our proposed switch, complete switching is performed by controlling the signal light amplitude with the config...

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Bibliographic Details
Main Authors: M. Takahashi, W. Ueda, N. Goto, S. Yanagiya
Format: Article
Language:English
Published: IEEE 2013-01-01
Series:IEEE Photonics Journal
Subjects:
Optical switch
saturable absorption
graphene
Online Access:https://ieeexplore.ieee.org/document/6617688/
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spelling doaj-f6fa76544ad7499cae8a02d5820ecaec2021-03-29T17:14:47ZengIEEEIEEE Photonics Journal1943-06552013-01-01556602109660210910.1109/JPHOT.2013.22842566617688Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching CircuitM. Takahashi0W. Ueda1N. Goto2S. Yanagiya3Department of Optical Science and Technology, The University of Tokushima, Tokushima, JapanDepartment of Optical Science and Technology The University of Tokushima, Tokushima, JapanDepartment of Optical Science and Technology The University of Tokushima, Tokushima, JapanDepartment of Optical Science and Technology The University of Tokushima, Tokushima, JapanOptical saturable absorption through a monolayer graphene vertically inserted between fibers and overlaid on an ion-exchanged waveguide was measured for picosecond switching application. In our proposed switch, complete switching is performed by controlling the signal light amplitude with the configuration of two cascaded Mach-Zehnder interferometers. To control the signal light amplitude, we use saturable absorption in graphene. For switching, the modulation depth of the amplitude is required to be 2.414, which corresponds to 7.65 dB in intensity. The modulation depth of absorption larger than 10 dB was experimentally obtained in the graphene-loaded waveguide with length of 7 mm.https://ieeexplore.ieee.org/document/6617688/Optical switchsaturable absorptiongraphene
collection DOAJ
language English
format Article
sources DOAJ
author M. Takahashi
W. Ueda
N. Goto
S. Yanagiya
spellingShingle M. Takahashi
W. Ueda
N. Goto
S. Yanagiya
Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit
IEEE Photonics Journal
Optical switch
saturable absorption
graphene
author_facet M. Takahashi
W. Ueda
N. Goto
S. Yanagiya
author_sort M. Takahashi
title Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit
title_short Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit
title_full Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit
title_fullStr Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit
title_full_unstemmed Saturable Absorption by Vertically Inserted or Overlaid Monolayer Graphene in Optical Waveguide for All-Optical Switching Circuit
title_sort saturable absorption by vertically inserted or overlaid monolayer graphene in optical waveguide for all-optical switching circuit
publisher IEEE
series IEEE Photonics Journal
issn 1943-0655
publishDate 2013-01-01
description Optical saturable absorption through a monolayer graphene vertically inserted between fibers and overlaid on an ion-exchanged waveguide was measured for picosecond switching application. In our proposed switch, complete switching is performed by controlling the signal light amplitude with the configuration of two cascaded Mach-Zehnder interferometers. To control the signal light amplitude, we use saturable absorption in graphene. For switching, the modulation depth of the amplitude is required to be 2.414, which corresponds to 7.65 dB in intensity. The modulation depth of absorption larger than 10 dB was experimentally obtained in the graphene-loaded waveguide with length of 7 mm.
topic Optical switch
saturable absorption
graphene
url https://ieeexplore.ieee.org/document/6617688/
work_keys_str_mv AT mtakahashi saturableabsorptionbyverticallyinsertedoroverlaidmonolayergrapheneinopticalwaveguideforallopticalswitchingcircuit
AT wueda saturableabsorptionbyverticallyinsertedoroverlaidmonolayergrapheneinopticalwaveguideforallopticalswitchingcircuit
AT ngoto saturableabsorptionbyverticallyinsertedoroverlaidmonolayergrapheneinopticalwaveguideforallopticalswitchingcircuit
AT syanagiya saturableabsorptionbyverticallyinsertedoroverlaidmonolayergrapheneinopticalwaveguideforallopticalswitchingcircuit
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