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首页> 外文期刊>Laser physics letters >Multilayer graphene improved interface thermal property for all-optical controlled fiber interferometer
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Multilayer graphene improved interface thermal property for all-optical controlled fiber interferometer

机译：多层石墨烯改进了全光学控制光纤干涉仪的界面热特性

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摘要

As the oxide-induced disruption from silicon dioxide substrate would greatly decrease the thermal property of graphene, strategies to optimize the thermo-optical response through controlling laser spot size, layer number and covering length of graphene layer are experimentally studied and discussed. An all-optical controlled fiber Mach-Zehnder interferometer with multilayer and monolayer graphene achieved by thermo-optical effects is subsequently proposed to prove the improvements. Graphene layers with 6 mm length were transferred to the middle taper and heated by an external laser. The maximum switching extinction ratio reached 16.2 dB. The response time and modulation efficiency were approximately 620 mu s and 0.22 dB mW(-1), respectively. This work suggests an effective way to improve the thermal property of graphene-fiber hybrid structure for all-optical control in fiber based integrated system. Moreover, the cost and complexity of device manufacturing are greatly reduced.
机译：随着从二氧化硅衬底的氧化物引起的破坏将大大降低石墨烯的热性，通过控制激光光斑尺寸，石墨烯层的层数和覆盖长度来优化热光学响应的策略进行实验和讨论。 随后提出了一种具有多层和单层石墨烯的全光学控制光纤Mach Zehnder干涉仪，以证明改进。 具有6mm长度的石墨烯层被转移到中间锥度并由外部激光加热。 最大切换消光比达到16.2dB。 响应时间和调制效率分别为约620μs和0.22 dB mw（-1）。 这项工作表明了一种有效的方法来提高基于光纤的集成系统中的全光学控制的石墨烯混合结构的热特性。 此外，设备制造的成本和复杂性大大降低。

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