MoS_2/WSe_2-PVA薄膜热光全光调制器(特邀)

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英文篇名：All-optical thermal modulator based on MoS_2/WSe_2-PVA thin film(invited) 作者：王奕方 ; 吴侃 ; 陈建平 英文作者：Wang Yifang;Wu Kan;Chen Jianping;State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University; 关键词：全光器件 ; 非线性光学材料 ; 光开关器件 ; 相位调制 英文关键词：all-optical devices;;nonlinear optical materials;;optical switching devices;;phase modulation 中文刊名：HWYJ 英文刊名：Infrared and Laser Engineering 机构：上海交通大学区域光纤通信网与新型光通信系统国家重点实验室; 出版日期：2018-11-19 09:45 出版单位：红外与激光工程 年：2019 期：v.48;No.291 基金：国家自然科学基金(61505105,61535006);; 北邮开放课题~~ 语种：中文; 页：HWYJ201901008 页数：5 CN：01 ISSN：12-1261/TN 分类号：53-57

摘要

全光调制器在全光信号处理和通信等全光应用中起着重要的作用。主要研究了基于MoS_2-PVA薄膜实现的全光调制器。此外,也验证了WSe_2-PVA薄膜也可实现全光调制。该器件利用热光效应,结合偏振干涉实现了全光调制,得到了长时间稳定输出的调制信号。将980 nm的脉冲信号作为控制光,MoS_2或WSe_2吸收光产生热量,使薄膜的折射率发生改变,从而改变1 550 nm信号光的偏振态,实现980 nm控制光对1 550 nm光的调制。得到的Mo S_2-PVA薄膜全光调制器的上升沿时间为526μs。
        All-optical modulator plays an important role for various all-optical applications in optical communication. An all-optical modulator was mainly investigated based on few-layer molybdenum disulfide(MoS_2)-polyvinyl alcohol(PVA) thin films. In addition, an all-optical modulator based on fewlayer tungsten disulfide(WSe_2)-polyvinyl alcohol(PVA) thin film was also demonstrated. The modulator was based on polarization interference and the thermo-optic effect of TMDs-PVA thin film. A long-time stable modulated output was obtained. By absorbing the pump at 980 nm, MoS_2 or WSe_2generates heat,changes the refractive index of thin film and modifies the polarization of the incident light at 1 550 nm. The obtained thermal all-optical modulator based on MoS_2-PVA thin film has a rise time of 526 μs.

引文

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