R G B laser generation by frequency doubling in 2-D nonlinear photonic crystals

• Main Authors: Cheng-De Lin, 林承德
• Other Authors: 彭隆瀚
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/00898722929032700556

碩士 === 國立臺灣大學 === 光電工程學研究所 === 94 === This thesis is organized into three parts: (a) an introduction to the theory of quasi-phase matching, (b) the design and fabrication of two-dimensional periodically poled congruent grown LiNbO3 (2D-PPCLN), and (c) the in-situ observation system. At first, the theory of nonlinear frequency conversion and quasi-phase matching is briefly introduced. Several fabrication methods, including using the surface domain inversion to make periodically poled structure, and using the high permittivity material or photoresist as insulator to make periodically poled structure were tested and comparison was made. A 500μm thickness 2D-PPCLN with 6.8μm period and 6mm effective length is made. A simple I n-situ observation system was presented. This non-destructive technique provides visual information of the quality and dynamics of domain formation during the PPCLN fabrication process.