摘要
为了实现紧凑结构下光的主动调控,设计了一种基于表面等离激元解复用器结构的双通道全光开关。该器件由金属-克尔非线性材料-金属的波导结构和谐振腔组成,具有主动光控功能。通过对该开光结构进行优化,实现了735 nm抽运光调控1310 nm信号光。该信号光在左右两个端口可实现输出与截止,消光比可达到29.4 d B,开关响应时间可达到50 fs。该双通道开关具有结构简单紧凑、易于集成、响应速度快等优点,将在纳米集成光学中具有重要的应用价值。
To realize the active light control with compact structure, we design an optical switch based on plasmonic demultiplexer. The device is composed of metal-Kerr nonlinear material-metal waveguide and resonant cavities, providing the function of active optical regulation. With the multiple parameter optimization, the signal with wavelength of 1310 nm can be controlled by pump light with wavelength of 735 nm. The signal can realize output and cut off at two output. The directional extinction ratio can reach to 29.4 dB and the response time is only 50 fs. The dual-channel all-optical switch has the advantages of simple and compact strueture, easy integration, fast response, and so on, it will has importance application in naono-integrated optics.
作者
林蓉
钱文超
商云鹏
王绶玙
刘诚
钱维莹
孔艳
Lin Rong;Qian Wenchao;Shang Yunpeng;Wang Shouyu;Liu Cheng;Qian Weiying;Kong Yan(School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第2期412-418,共7页
Laser & Optoelectronics Progress
基金
江南大学校级大学生创新训练计划资助项目(2016338Y)
江苏省自然科学基金青年项目(BK20130162)
关键词
表面光学
全光开关
表面等离激元
解复用器
时域有限差分方法
非线性材料
optics at surfaces
all-optical switch
surface plasmon polariton （SPP）
demultiplexer
finite difference time domain （FDTD）
nonlinear material
