This work was supported by the National Key R&D Program of China(2017YFA0303800);the National Natural Science Foundation of China(11874300,11634010,61575162,61805277,61675169,91950207);the Fundamental Research Funds for the Central Universities(3102017AX009,3102019PY002,3102019JC008);the Natural Science Basic Research Program of Shaanxi(2018JM6013,2019JQ-447).
Cylindrical vector beams and vortex beams,two types of typical singular optical beams characterized by axially symmetric polarization and helical phase front,possess the unique focusing property and the ability of car...
supported by the National Natural Science Foundation of China(NSFC)(Nos.11974282,61675169,and 91950207)。
We present the generation of the nanosecond cylindrical vector beams(CVBs)in a two-mode fiber(TMF)and its applications of stimulated Raman scattering.The nanosecond(1064 nm,10 ns,10 Hz)CVBs have been directly produced...
Soliton dynamics are numerically investigated in a two-mode fiber with the two-photon absorption,and the effects of the two-photon absorption on the soliton propagation and interaction are demonstrated in different di...
National Natural Science Foundation of China(91950105);Natural Science Foundation of Jiangsu Province(BK20161521,BK20180742);Nanjing University of Posts and Telecommunications Talents(NY214002,NY215002);Distinguished Professor Project of Jiangsu(RK002STP14001);Six Talent Peaks Project in Jiangsu Province(2015-XCL-023);Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX18_0856)
We demonstrate a passively mode-locked all-fiber laser generating cylindrical vector beams(CVBs)only using a symmetric two-mode fiber optical coupler(TMF-OC)for both high-order mode excitation and splitting.Theoretica...
supported by the National Natural Science Foundation of China(No.61505119);the National Postdoctoral Program for Innovative Talents(No.BX201600077);the Brain Gain Foundation of Nanjing University of Posts and Telecommunications(No.NY215040);the China Postdoctoral Science Foundation(No.2017M611877);the Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province(No.GD201706)
The spectral characteristics and sensitivities of a tapered two-mode fiber sandwiched between two single-mode fibers are systematically investigated. Theoretical calculations reveal that a dispersion turning point(DTP...
Project supported by the National Natural Science Foundation of China(Grant Nos.61435009,61235008,and 61405254)
We demonstrate efficient supercontinuum generation extending into mid-infrared spectral range by pumping a twomode As2S3 fiber in the normal dispersion regime. The As2S3 fiber is fusion spliced to the pigtail of a nea...
We are grateful to Prof. Hsi-Sheng Goan for valuable support during writing the paper. The project was supported by the National Natural Science Foundation of China (Grant No. 11347026) and the Natural Science Foundation of Shan- dong Province (Grant Nos. ZR2016AM03 and ZR2017MA011).
Extending the recent work completed by Fan et al. [Front. Phys. 9(1), 74 (2014)] to a two-mode case, we investigate how a two-mode squeezed vacuum evolves when it undergoes a two-mode amplitude dissipative channel...
Project supported by the Natural Science Foundation of Jiangsu Provincial Universities(Grant No.14KJB140009);the National Natural Science Foundation of China(Grant No.11447113);the Startup Foundation for Introducing Talent of NUIST(Grant No.2241131301064)
Modulation instabilities in the randomly birefringent two-mode optical fibers (RB-TMFs) are analyzed in detail by accounting the effects of the differential mode group delay (DMGD) and group velocity dispersion (...
Supported by the National Basic Research Program of China under Grant No 2014CB340102;the National Natural Science Foundation of China under Grant Nos 61474111 and 61274046
Two-mode converters at 1.3μm, aiming at applications in mode-division multiplexing in Ethernet systems, are proposed and experimentally demonstrated. Based on multimode interference couplers, the two-mode converters ...
Project supported by the Beijing Higher Education Young Elite Teacher Project;China(Grant No.YETP0086);the Tsinghua University Initiative Scientific Research Programme;China(Grant No.2012Z02166);the Special-funded Programme on National Key Scientific Instruments and Equipment Development of China(Grant No.2011YQ04013603)
We investigate the total intensity fluctuation spectrum of the two-longitudinal- mode Nd:YVO4microchip laser(ML).We find that low-frequency relaxation oscillation(RO) peaks still appear in the total intensity flu...