Planar waveguides in neodymium-doped calcium niobium gallium garnet crystals produced by proton implantation  

作　　者：刘春晓 陈梦 付丽丽 郑锐林 郭海涛 周志广 李玮楠 林社宝 韦玮 

机构地区：[1]School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China [2]College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China [3]State Key Laboratory of Transient Optics and Photonics, Xi' an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi' an 710119, China [4]Institute of Physics & Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721007, China

出　　处：《Chinese Physics B》2016年第4期182-185,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11405041,61405240,61077070,61177086,51002181,and 61177084);the Scientific Research Starting Foundation for New Teachers of Nanjing University of Posts and Telecommunications(NUPTSF)(Grant No.NY214159);the Research Center of Optical Communications Engineering&Technology,Jiangsu Province,China(Grant No.ZSF0401)

摘　　要：In this work, the fabrication and optical properties of a planar waveguide in a neodymium-doped calcium niobium gallium garnet （Nd：CNGG） crystal are reported. The waveguide is produced by proton （H＋） implantation at 480 keV and a fluence of 1.0x 10^17 ions/cm2. The prism-coupling measurement is performed to obtain the dark mode of the waveguide at a wavelength of 632.8 nm. The reflectivity calculation method （RCM） is used to reconstruct the refractive index profile. The finite-difference beam propagation method （FD-BPM） is employed to calculate the guided mode profile of the waveguide. The stopping and range of ions in matter 2010 （SRIM 2010） code is used to simulate the damage profile induced by the ion implantation. The experimental and theoretical results indicate that the waveguide can confine the light propagation.In this work, the fabrication and optical properties of a planar waveguide in a neodymium-doped calcium niobium gallium garnet （Nd：CNGG） crystal are reported. The waveguide is produced by proton （H＋） implantation at 480 keV and a fluence of 1.0x 10^17 ions/cm2. The prism-coupling measurement is performed to obtain the dark mode of the waveguide at a wavelength of 632.8 nm. The reflectivity calculation method （RCM） is used to reconstruct the refractive index profile. The finite-difference beam propagation method （FD-BPM） is employed to calculate the guided mode profile of the waveguide. The stopping and range of ions in matter 2010 （SRIM 2010） code is used to simulate the damage profile induced by the ion implantation. The experimental and theoretical results indicate that the waveguide can confine the light propagation.

关 键 词：WAVEGUIDE ion implantation Nd：CNGG crystal 

分 类 号：TN252[电子电信—物理电子学]