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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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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