Project supported by the National Natural Science Foundation of China(Grant No.11974119);the Science and Technology Project of Guangdong Province,China(Grant No.2020B010190001);the Guangdong Innovative and Entrepreneurial Research Team Program(Grant No.2016ZT06C594);the National Key Research and Development Program of China(Grant Nos.2018YFA,0306200,and 2019YFB2203500);the Science and Technology Program of Guangzhou City(Grant No.2023A04J1309).
Phase matching or quasi-phase matching(QPM)is of significant importance to the conversion efficiency of second harmonic generation(SHG)in artificial nonlinear crystals like lithium niobate(LN)crystal or microstructure...
Project supported by the Key-Area Research and Development Program of Guangdong Province of China (Grant No.2018B030325002);the National Natural Science Foundation of China (Grant No.62075129);the Open Project Program of SJTU-Pinghu Institute of Intelligent Optoelectronics (Grant No.2022SPIOE204);the Science and Technology on Metrology and Calibration Laboratory (Grant No.JLJK2022001B002);the Sichuan Provincial Key Laboratory of Microwave Photonics (Grant No.2023-04)。
Hyperentanglement is a promising resource for achieving high capacity quantum communication.Here,we propose a compact scheme for the generation of path-frequency hyperentangled photon pairs via spontaneous parametric ...
Project supported by the National Natural Science Foundation of China(Grant Nos.62165012 and 61665010);the Key Research and Development Projects in Gansu Province,China(Grant No.21YFIGE300);Gansu Province College Industry Support Plan Project(Grant Nos.2020C-23 and 2022CYZC-59);the Natural Science Foundation of Gansu Province,China(Grant Nos.21JR7RE173 and 20JR5RA494);Qinzhou District Science and Technology Plan Project(Grant No.2021-SHFZG-1442);the Scientific Research Innovation Platform Construction Project of Tianshui Normal University,Gansu Province,China(Grant No.PTJ2022-06);Science and Technology Supporting Program Project of Tianshui City(Grant Nos.2022-FZJHK-8548,2019-FZJHK-9891,and 2020-FZJHK-9757).
We demonstrate a high power,widely tunable femtosecond MgO-doped periodically poled lithium niobate(MgO:PPLN)optical parametric oscillator(OPO)at 151 MHz,pumped by a Kerr-lens mode-locked Yb:KGW laser.With a maximum p...
the National Key R&D Program of China(2017YFA0303703,2018YFB1105400,and 2016YFA0302500);the National Natural Science Foundation of China(NSFC)(91950206,11874213,51875544,91963127,51675503,and 62005262);National Key Scientific Instrument and Equipment Development Project(61927814);Youth Innovation Promotion Association of the Chinese Academy of Sciences(2017495);Foundation of Equipment Development Department(6220914010901);Anhui Province Science and Technology Major Project(201903a05020005);Fundamental Research Funds for the Central Universities(021314380105);The China Postdoctoral Science Foundation(2020M671838 and 2021T14069)。
Nonlinear holography has recently emerged as a novel tool to reconstruct the encoded information at a new wavelength,which has important applications in optical display and optical encryption.However,this scheme still...
Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung(176563)(BRIDGE);U.S.Air Force(FA9550-19-1-0250);Defense Advanced Research Projects Agency(HR0011-15-C-055)(DODOS);European Research Council(ERC-2017-CoG 771647)(PISSARRO);Microsystems Technology Office(MTO);Air Force Material Command;Air Force Office of Scientific Research;EPFL Center of MicroNanoTechnology(CMi)。
Quasi-phase-matching(QPM)has become one of the most common approaches for increasing the efficiency of nonlinear three-wave mixing processes in integrated photonic circuits.Here,we provide a study of dispersion engine...
Project supported by the National Natural Science Foundation of China(Grant Nos.61975184,91636108,and 61775043);the Natural Science Foundation of Zhejiang Province,China(Grant No.LY18A040007);the Science Foundation of Zhejiang Sci-Tech University(Grant Nos.19062151-Y and 18062145-Y);the Open Foundation of the Key Laboratory of Optical Field Manipulation of Zhejiang Province,China(Grant No.ZJOFM-2019-002).
A scheme is proposed to generate genuine tripartite Einstein-Podolsky-Rosen(EPR)steering in cascaded nonlinear process of the fourth-harmonic generation.The second-harmonic is generated by the first double-frequency p...
the National Natural Science Foundation of China(Nos.61205140,11274165,and 11021403);the Jiangsu Science Foundation(BK2011545);the State Key Program for Basic Research of China(Nos.2010CB630703 and 2011CBA00205),and the PAPD.
The quasi-phase-matching(QPM)technique has drawn increasing attention due to its promising applications in areas such as nonlinear frequency conversion for generating new laser light sources.In this paper,we will brie...
by the National Natural Science Foundation of China under Grant No 10634080;the National Basic Research Program of China under Grant Nos 2007CB613205 and 2007CB935703.
The broadband response of second harmonic generation(SHG)is experimentally observed in a two-dimensional(2D)quasi-random quasi-phase-matching(QPM)structure.A nonlinear conversion efficiency of more than 50%is obtained...
Supported by the National Natural Science Foundation of China(60777024;60978007)
Effects of second harmonic generation (SHG) and cascaded second harmonic generation/difference frequency generation(cSHG/DFG) based on the quasi-phase-matching (QPM) condition in periodically poled lithium nioba...
supported by the National "863" Program of China (No. 2007AA01Z273);the National Natural Science Fundation of China (No. 10874120);the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China
Based on the second-order nonlinearity, we present a bidirectional tunable all-optical switch at C-band by introducing backward quasi-phase-matching technique in Mg-doped periodically poled lithium niobate (MgO:PPLN...