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物理学报. 2003, 52(8): 1925-1928.
doi: 10.7498/aps.52.1925.
二维LiNbO3非线性光子晶体
- 收稿日期: 2002-11-06
- 修回日期: 2002-12-25
- 刊出日期: 2003-04-05
English Abstract
Two-dimensional periodically poled LiNbO3 nonlinear photonic crystal
- Received Date:
06 November 2002
- Accepted Date:
25 December 2002
- Published Online:
05 April 2003
Abstract: A two-dimensional periodically poled lithium niobate crystal with a 13.64 μm period was fabricated. The inverted duty cycle was about 23%. The second harmonic output for the second-order quasi-phase-matching (QPM) against the input was measured. The maximum second harmonic internal conversion efficiency was higher than 40%. All results implied that the second-order QPM could be used to obtain high-frequency conversion efficiency. Compared with the first-order QPM, the second-order QPM can reduce the requirement for the poling technique and the mask fabrication.
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