Due to its easy growth, higher nonlinear coefficients, and better optical characteristics, LiNbO3 is broadly used as nonlinear crystal in laser system and wavelength converter in optical communication systems.
In this thesis, we discuss the use of LHPG method to grow periodically poled LiNbO3 crystal fiber without metallic patterns. During the growth, micro-swing is managed to assist poling process, simultaneously we can understand and simulate the electric-field induced current. Using the relation between current waveform and micro-swing amplitude, we can quantify the micro-swing amplitude, and establish feedback control to enhance the stability during crystal fiber growth process. The achieved internal SHG conversion efficiency is 14.8 % with a quasi-phase matched period of 15.45 £gm.
Besides promoting process stability and improving uniformity of domain inversion period, it is our hope that the relation between domain inversion and measured induced current can be clarified in the future. Due to the low Curie temperature of LiTaO3, it is expected that our experience on LiNbO3 can facilitate the development of periodic poling on LiTaO3.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0713106-194511 |
| Date | 13 July 2006 |
| Creators | Tsai, Mon-Chang |
| Contributors | Jui-Hung Hsu, Sheng-Lung Huang, Wood-Hi Cheng, Fu-Jen Kao, Gong-Ru Lin |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713106-194511 |
| Rights | restricted, Copyright information available at source archive |
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