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拉曼增益对回音壁模式光学微腔的全光调制

All optical modulation of whispering-gallery-mode optical micro-cavities with Raman gain

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摘要

基于光通信系统对于全光调制和全光开关等的需求, 从理论上和实验上研究了拉曼增益对回音壁模式光学微腔系统共振模式的全光调制。理论分析表明, 拉曼增益能够补偿回音壁模式光学微腔系统的损耗, 进而改变微腔系统的耦合机制, 在不对微腔系统做任何机械性移动的前提下实现对系统共振透射率的连续调制。实验中采用光纤锥耦合的二氧化硅微芯圆环腔, 利用560 ?滋W的低功率泵浦光引发的拉曼散射, 波长为1 545.7 nm的信号光实现了13.5 dB的调制度, 使得系统的耦合机制由欠耦合转化为临界耦合。

Abstract

Based on the high demand for all optical control and all optical switches in optical communication network, the Raman gain induced resonance control of whispering-gallery-mode optical micro-cavities was investigated theoretically and experimentally. Theoretical analysis shows that Raman gain can compensate cavity loss and change the coupling regime of micro-cavities system. As a result on-resonance transmission in the micro-cavities system can be controlled without any mechanical movement. In experiment fiber taper coupled silica micro-toroid system was studied. Raman gain was pumped with an ultra-low pump power of 560 ?滋W, with this Raman gain the fiber taper coupled micro-cavity system was turned from deep under coupling regime to critical coupling regime and the on-resonance transmission of the 1 545.7 nm signal light was turned down by 13.5 dB.

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中图分类号:TN256

DOI:10.3788/irla201746.1122003

所属栏目:光通信与光传感

基金项目:国家自然科学基金(61308061)

收稿日期:2017-03-01

修改稿日期:2017-04-17

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作者单位    点击查看

杨旭:中国电子科技集团公司第五十四研究所, 河北 石家庄 050081
李亚明:中国电子科技集团公司第五十四研究所, 河北 石家庄 050081
郭肃丽:中国电子科技集团公司第五十四研究所, 河北 石家庄 050081
李晶:中国电子科技集团公司第五十四研究所, 河北 石家庄 050081
刘旭东:中国电子科技集团公司第五十四研究所, 河北 石家庄 050081

联系人作者:杨旭(yangxumail@foxmail.com)

备注:杨旭(1989-), 女, 工程师, 博士, 主要从事航天测控领域的光控技术方面的研究。

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引用该论文

Yang Xu,Li Yaming,Guo Suli,Li Jing,Liu Xudong. All optical modulation of whispering-gallery-mode optical micro-cavities with Raman gain[J]. Infrared and Laser Engineering, 2017, 46(11): 1122003

杨旭,李亚明,郭肃丽,李晶,刘旭东. 拉曼增益对回音壁模式光学微腔的全光调制[J]. 红外与激光工程, 2017, 46(11): 1122003

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