scholarly journals Dispersed-Monolayer Graphene-Doped Polymer/Silica Hybrid Mach-Zehnder interferometer (MZI) Thermal Optical Switch with Low-Power Consumption and Fast Response

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1898 ◽  
Author(s):  
Yue Cao ◽  
Daming Zhang ◽  
Yue Yang ◽  
Baizhu Lin ◽  
Jiawen Lv ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Power Consumption ◽  
Low Power ◽  
Optical Switch ◽  
Fast Response ◽  
Zehnder Interferometer ◽  
Low Power Consumption ◽  
Monolayer Graphene ◽  
Doped Polymer ◽  
Silica Hybrid

This article demonstrates a dispersed-monolayer graphene-doped polymer/silica hybrid Mach–Zehnder interferometer (MZI) thermal optical switch with low-power consumption and fast response. The polymer/silica hybrid MZI structure reduces the power consumption of the device as a result of the large thermal optical coefficient of the polymer material. To further decrease the response time of the thermal optical switch device, a polymethyl methacrylate, doped with monolayer graphene as a cladding material, has been synthesized. Our study theoretically analyzed the thermal conductivity of composites using the Lewis–Nielsen model. The predicted thermal conductivity of the composites increased by 133.16% at a graphene volume fraction of 0.263 vol %, due to the large thermal conductivity of graphene. Measurements taken of the fabricated thermal optical switch exhibited a power consumption of 7.68 mW, a rise time of 40 μs, and a fall time of 80 μs at a wavelength of 1550 nm.

scholarly journals Low Power Consumption 3D-Inverted Ridge Thermal Optical Switch of Graphene-Coated Polymer/Silica Hybrid Waveguide

Micromachines ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 783
Author(s):  
Yue Cao ◽  
Yunji Yi ◽  
Yue Yang ◽  
Baizhu Lin ◽  
Jiawen Lv ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Graphene Layer ◽  
Optical Switch ◽  
Graphene Film ◽  
Core Layer ◽  
Low Power Consumption ◽  
Electrode Structure ◽  
Hybrid Waveguide ◽  
Silica Hybrid

An inverted ridge 3D thermal optical (TO) switch of a graphene-coated polymer/silica hybrid waveguide is proposed. The side electrode structure is designed to reduce the mode loss induced by the graphene film and by heating the electrode. The graphene layer is designed to be located on the waveguide to assist in the conduction of heat produced by the electrode. The inverted ridge core is fabricated by etching and spin-coating processes, which can realize the flat surface waveguide. This core improves the transfer of the graphene layer and the compatibility of the fabrication processes. Because of the opposite thermal optical coefficient of polymer and silica and the high thermal conductivity of the graphene layer, the 3D hybrid TO switch with low power consumption and fast response time is obtained. Compared with the traditional TO switch without graphene film, the power consumption of the proposed TO switch is reduced by 41.43% at the wavelength of 1550 nm, width of the core layer (a) of 3 μm, and electrode distance (d) of 4 μm. The rise and fall times of the proposed TO switch are simulated to be 64.5 μs and 175 μs with a d of 4 μm, and a of 2 μm, respectively.

Design and analysis of Y-branched polymeric digital optical switch with low power consumption

2013 ◽  
Vol 296 ◽  
pp. 53-56 ◽  
Author(s):  
Fengxian Qiu ◽  
Jinhua Liu ◽  
Guorong Cao ◽  
Yijun Guan ◽  
Qiang Shen ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Optical Switch ◽  
Low Power Consumption

Low power consumption and fast response H2S gas sensor based on a chitosan-CuO hybrid nanocomposite thin film

2020 ◽  
Vol 236 ◽  
pp. 116064 ◽  
Author(s):  
Fajr I.M. Ali ◽  
Saleh T. Mahmoud ◽  
Falah Awwad ◽  
Yaser E. Greish ◽  
Ayah F.S. Abu-Hani
Keyword(s):  
Thin Film ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Fast Response ◽  
Low Power Consumption ◽  
Hybrid Nanocomposite ◽  
Nanocomposite Thin Film ◽  
H2s Gas Sensor

Electrothermally Triggered Broadband Optical Switch Films with Extremely Low Power Consumption

2018 ◽  
Vol 1 (4) ◽  
pp. 1429-1434 ◽  
Author(s):  
Ryohei Yoshikawa ◽  
Mizuki Tenjimbayashi ◽  
Seimei Shiratori
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Optical Switch ◽  
Low Power Consumption

Driving-Noise-Tolerant Broadband Polymer/Silica Hybrid Thermo-Optic Switch with Low Power Consumption

2012 ◽  
Vol 31 (5) ◽  
pp. 299-315 ◽  
Author(s):  
Lei Liang ◽  
Chuan-Tao Zheng ◽  
Xiao-Qiang Sun ◽  
Fei Wang ◽  
Chun-Sheng Ma ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Noise Tolerant ◽  
Silica Hybrid

Low-power-consumption polymer Mach–Zehnder interferometer thermo-optic switch at 532  nm based on a triangular waveguide

2020 ◽  
Vol 45 (16) ◽  
pp. 4448 ◽  
Author(s):  
Baizhu Lin ◽  
Xibin Wang ◽  
Jiawen Lv ◽  
Yue Cao ◽  
Yue Yang ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Zehnder Interferometer ◽  
Low Power Consumption ◽  
532 Nm ◽  
Mach Zehnder Interferometer

Ion Gel-Coated Graphene Transistor for Ethanol Gas Sensing

2021 ◽  
Vol 105 ◽  
pp. 3-7
Author(s):  
De Sheng Liu ◽  
Jiang Wu ◽  
Zhi Ming Wang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Industrial Production ◽  
Gas Sensing ◽  
Drunk Driving ◽  
Fast Response ◽  
Low Power Consumption ◽  
Operating Voltage ◽  
Ethanol Sensor ◽  
Ion Gel

Ethanol sensor has been widely used in our daily life and industrial production, such as drunk driving test, food fermentation monitoring, and industrial gas leakage monitoring. With the advent of the Internet of Things (IoT) era, ethanol sensors will develop towards miniaturization and low-power consumption in the near future. However, traditional ethanol sensors with large volumes and high-power consumption are difficult to meet these requirements. Therefore, it is urgent to study ethanol gas sensors based on new materials and new structures. Here, we demonstrated a flexible ethanol sensor based on an ion gel-coated graphene field-effect transistor (IGFET). The device has a small graphene channel size with a width of 300 μm and a length of 200 μm. The device showed a low operating voltage of less than |±1| V. When the device was put into an ethanol gas condition, the Dirac point voltage of the IGFET showed a negative shift, which means an n-type doping effect to the graphene channel. Furthermore, the sensor showed a normalized current change of-11% against an ethanol gas concentration of 78.51 g/L at a constant drain-source voltage of 0.1 V. In addition, the device exhibited a fast response time of ~10 s and a recovery time of ~18 s. Moreover, the detectable range of the device was found to as wide as 19.76-785.1 g/L. Based on the above results, the flexible IGFET-based ethanol sensor with small size and low-power consumption has great potential to be used in the industrial production of the IoT era.

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