材料科学
宽带
光学
二次谐波产生
光子上转换
和频产生
光电子学
带宽(计算)
薄膜
窄带
铌酸锂
波长
Crystal(编程语言)
非线性光学
电信
兴奋剂
激光器
物理
纳米技术
计算机科学
程序设计语言
作者
Guangzhen Li,Yuping Chen,Haowei Jiang,Xianfeng Chen
出处
期刊:Optics Letters
[The Optical Society]
日期:2017-02-24
卷期号:42 (5): 939-939
被引量:47
摘要
We demonstrate the first, to the best of our knowledge, type-0 broadband sum-frequency generation (SFG) based on single-crystal periodically poled LiNbO3 (PPLN) thin film. The broad bandwidth property was largely tuned from mid-infrared region to the telecommunications band by engineering the thickness of PPLN from bulk crystal to nanoscale. It provides SFG a solution with both broadband and high efficiency by using the highest nonlinear coefficient d33 instead of d31 in type-I broadband SFG or second-harmonic generation. The measured 3 dB upconversion bandwidth is about 15.5 nm for a 4 cm long single crystal at 1530 nm wavelength. It can find applications in chip-scale spectroscopy, quantum information processing, LiNbO3-thin-film-based microresonator and optical nonreciprocity devices, etc.
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