Photonics Research, Volume. 6, Issue 10, C22(2018)

Thermo-optic all-optical devices based on two-dimensional materials

Kan Wu... Yifang Wang, Ciyuan Qiu* and Jianping Chen |Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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    Figures & Tables(9)
    (a) All-optical phase shifter and switch based on WS2-deposited tapered fiber. (b) TEM image of WS2 nanosheets. (c) Microscopic image of WS2-deposited tapered fiber. (d) Raman spectrum of WS2-deposited tapered fiber. Adapted with permission from Ref. [39].
    (a) Transmission spectra of the MZI with 0 (blue) and 5π phase shift (red). (b) Relation between the phase shift and the control light power. (c) Pulsed control light (yellow) and switch output at output 1 port (blue). (d) Complementary output at output 2 port. Adapted with permission from Ref. [39].
    (a) Refractive index of WS2 from ellipsometric measurement and (b) refractive index change at different temperatures. Adapted with permission from Ref. [39].
    (a) All-optical switch based on polarization interferometer and MoS2-PVA thin film. (b) MoS2-PVA thin film. (c) Device principle. Adapted with permission from Ref. [40].
    (a) Pulsed control light (yellow) and output signal (blue). (b) A zoomed view of a single off–on–off transition of the output pulse (blue) and exponential fit (red). (c) A long-term stable output pulse train. Adapted with permission from Ref. [40].
    (a) All-optical switch based on a graphene-on-Si3N4 device. (b) Device structure. (c) SEM image of device. (d) Device principle. Adapted with permission from Ref. [41].
    Experimental (black) and simulation (red) results of an output signal pulse. Inset: temperature change of the device. Adapted with permission from Ref. [41].
    (a) Mode distribution in a single-mode fiber. Relation between (b) index change and core index change, and (c) index change and cladding index change.
    • Table 1. Comparison of Reported Works of Thermo-Optic All-Optical Switches Based on 2D Materials

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      Table 1. Comparison of Reported Works of Thermo-Optic All-Optical Switches Based on 2D Materials

      DeviceIntegrationSwitching Time Const.Extinction RatioControl EfficiencyReference
      Fiber MZI w/grapheneNo3.2 ms20 dB0.018πmW1·mm1[7]
      Fiber MZI w/WS2No7.3 ms15 dB0.035πmW1·mm1Our work [39]
      Fiber MZI w/phosphoreneNo2.5 ms17 dBNAa[31]
      Fiber PI w/MoS2No324.5 μs10 dB0.063πmW1·mm1Our work [40]
      Fiber micro-ring w/grapheneNo134  μsb13 dB0.31πmW1·mm1[11]
      Si3N4 micro-ring w/grapheneYes253 ns10 dB0.065πmW1·mm1Our work [41]
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    Kan Wu, Yifang Wang, Ciyuan Qiu, Jianping Chen, "Thermo-optic all-optical devices based on two-dimensional materials," Photonics Res. 6, C22 (2018)

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    Paper Information

    Special Issue: TWO DIMENSIONAL LAYERED MATERIALS FOR ULTRAFAST LASERS (INVITATION ONLY)

    Received: May. 31, 2018

    Accepted: Jul. 19, 2018

    Published Online: Aug. 21, 2018

    The Author Email: Ciyuan Qiu (qiuciyuan@sjtu.edu.cn)

    DOI:10.1364/PRJ.6.000C22

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