Broadband quasi phase matching in a MgO:PPLN thin film

被引：44

作者：

Ge, Licheng ^{[1
]}

Chen, Yuping ^{[1
]}

Jiang, Haowei ^{[1
]}

Li, Guangzhen ^{[1
]}

Zhu, Bing ^{[1
]}

Liu, Yi'an ^{[1
]}

Chen, Xianfeng ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

来源：

PHOTONICS RESEARCH | 2018年 / 6卷 / 10期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

LITHIUM-NIOBATE; UP-CONVERSION; WAVE-GUIDE; 2ND-HARMONIC GENERATION; LINBO3; LIGHT; TEMPERATURE; MODULATORS; SHG;

D O I：

10.1364/PRJ.6.000954

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Future quantum information networks operated on telecom channels require qubit transfer between different wavelengths while preserving quantum coherence and entanglement. Qubit transfer is a nonlinear optical process, but currently the types of atoms used for quantum information processing and storage are limited by the narrow bandwidth of upconversion available. Here we present the first experimental demonstration of broadband and high-efficiency quasi-phase matching second-harmonic generation (SHG) in a chip-scale periodically poled lithium niobate thin film. We achieve a large bandwidth of up to 2 THz for SHG by satisfying quasi-phase matching and group-velocity matching simultaneously. Furthermore, by changing the film thickness, the central wavelength of the quasi-phase matching SHG bandwidth can be modulated from 2.70 mu m to 1.44 mu m. The reconfigurable quasi-phase matching lithium niobate thin film provides a significant on-chip integrated platform for photonics and quantum optics. (C) 2018 Chinese Laser Press

引用

页码：954 / 958

页数：5

共 47 条

[1] Bandwidth-Tunable Single-Photon Source in an Ion-Trap Quantum Network [J].