Large angle acceptance of quasi-phase-matched second harmonic generation in a homocentrically poled LiNbO3

Autor: Boqin Ma, Binying Cheng, Ting Wang, Daozhong Zhang, Peigen Ni, Yan Sheng
Rok vydání: 2005
Předmět:
Zdroj: Optics Communications. 252:397-401
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2005.04.019
Popis: A periodically poled LiNbO3 (PPLN) with homocentric semicircle domain structure is prepared, by which a high efficiency second harmonic generation with large angle acceptance is demonstrated. The angle acceptance and conversion efficiency of this PPLN is compared to the PPLN with a strip pattern. In our case the poling period is 26 mu m, and the crystal is 9 mm long. The corresponding angle acceptance is 30 degrees, while that of strip pattern PPLN is 2.36 degrees. The conversion efficiency of PPLN with homocentric semicircle pattern and strip pattern is 36.7% and 33% respectively. (c) 2005 Elsevier B.V. All rights reserved.
Databáze: OpenAIRE