一种具有量子点光源和Fibonacci光子准晶谐振腔的VCSEL  

A VCSEL with quantum-dot source and Fibonacci photon quasicrastalline structures cavity

作　　者：刘笑林 孙晓红[1] 姬进才 韦国锦 王许浦 习小玉 LIU Xiaolin;SUN Xiaohong;JI Jincai;WEI Guojin;WANG Xupu;XI Xiaoyu(Henan Key Laboratory of Laser and Opto-electric Information Technology,School of Information Engineering,Zhengzhou University,Zhengzhou 450052,China)

机构地区：[1]郑州大学信息工程学院河南省激光与光电信息技术重点实验室

出　　处：《激光杂志》2019年第12期31-34,共4页Laser Journal

基　　金：河南省重大科技专项(No.161100210200)

摘　　要：垂直腔面发射激光器(VCSEL)具有较大的发散角,限制了它在很多领域的应用。设计了一种以量子点结构为发光源,以Fibonacci光子准晶(FPQC)为谐振腔的VCSEL。通过调整In/Ga的掺杂浓度,得到了光谱中心为460 nm的量子点光源。设计并优化了两种FPQC结构,分别作为谐振腔的全反射镜面(TRM)和透射镜面(TM)。与传统的分布式布拉格反射(DBR)腔相比,该激光器具有更小的发散角和更集中的光谱。Vertical cavity surface emitting laser(VCSEL)has a large divergence angle,which limits its application in many fields.A VCSEL with quantum-dots source and Fibonacci photonic quasicrystalline(FPQC)cavity is designed.The laser uses a quantum-dot structure as light source to obtain a 460 nm emission spectrum by adjusting the In/Ga doping concentration.Two different FPQC structures are designed and optimized to serve as the total reflection mirror(TRM)and the transmission mirror(TM)of the resonant cavity,respectively.Compared with the distributed Bragg reflection(DBR)cavity,the designed FPQC cavity laser has smaller far-field divergence angle and more concentrated spectrum.

关 键 词：垂直腔面发射激光器 光子准晶 激光器 量子点 发散角 

分 类 号：TN242[电子电信—物理电子学]