Exploring the frequency degenerate range of the three-dimensional structured lights in selectively end-pumped Nd:YVO4laser - Details

author：

Indexed by：

EI

Abstract：

Three-dimensional　(3D)　structured　light　is　a　complex　form　of　structured　light　characterized　by　ray-wave　duality.　The　principle　for　generating　3D　structured　laser　transverse　modes　has　been　well-established　through　numerous　experiments.　However,　little　research　has　been　focused　on　the　frequency　degeneracy　range　during　the　process　of　obtaining　these　modes.　In　this　work,　we　utilize　a　Radio-Frequency　(RF)　spectrum　analyzer　to　record　frequency　signal　data　at　different　accidental　degeneracies.　By　analyzing　the　variation　of　the　frequency　signal　as　the　resonator　length　changes,　we　determined　the　exact　degeneracy　range.　Near　the　1/5　degeneracy　cavity,　the　exact　range　was　found　to　be　from　18.20　mm　to　18.10　mm.　Near　the　1/6　degeneracy　cavity,　the　degenerate　cavity　length　range　was　determined　to　be　from　12.55　mm　to　12.45　mm.　This　work　demonstrates　that　monitoring　the　RF　signal　changes　with　the　analyzer　enables　precise　identification　of　the　resonator’s　fine　cavity　length　and　degeneracy　range,　based　on　ray-wave　duality.　It　also　introduces　a　novel　method　for　evaluating　the　stability　of　3D　structured　laser　transverse　modes　in　the　frequency　domain.　©　2025　Optica　Publishing　Group　under　the　terms　of　the　Optica　Open　Access　Publishing　Agreement.

Keyword：

Cavity resonators Frequency domain analysis Laser resonators Neodymium lasers Optical pumping Spectrum analyzers Squeezed light

Community：

[ 1 ] [Li, Jia’Ning]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 2 ] [Li, Jia’Ning]College of Chemistry and Materials, Fujian Normal University, Fujian, Fuzhou; 350117, China
[ 3 ] [Li, Jia’Ning]Fujian College, University of Chinese Academy of Science, Fuzhou; 350108, China
[ 4 ] [Huang, Gang]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 5 ] [Huang, Gang]University of Chinese Academy of Science, Beijing; 100049, China
[ 6 ] [Xie, Pengjian]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 7 ] [Xie, Pengjian]Fujian College, University of Chinese Academy of Science, Fuzhou; 350108, China
[ 8 ] [Xie, Pengjian]College of Chemistry, Fuzhou University, Fujian, Fuzhou; 350108, China
[ 9 ] [Zhou, Pengfei]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 10 ] [Zhou, Pengfei]College of Chemistry and Materials, Fujian Normal University, Fujian, Fuzhou; 350117, China
[ 11 ] [Zhou, Pengfei]Fujian College, University of Chinese Academy of Science, Fuzhou; 350108, China
[ 12 ] [Liu, Rui]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 13 ] [Liu, Rui]College of Chemistry and Materials, Fujian Normal University, Fujian, Fuzhou; 350117, China
[ 14 ] [Liu, Rui]Fujian College, University of Chinese Academy of Science, Fuzhou; 350108, China
[ 15 ] [Huang, Jinming]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 16 ] [Huang, Jinming]College of Chemistry and Materials, Fujian Normal University, Fujian, Fuzhou; 350117, China
[ 17 ] [Huang, Jinming]Fujian College, University of Chinese Academy of Science, Fuzhou; 350108, China
[ 18 ] [Pan, Shengyuan]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 19 ] [Pan, Shengyuan]College of Chemistry and Materials, Fujian Normal University, Fujian, Fuzhou; 350117, China
[ 20 ] [Pan, Shengyuan]Fujian College, University of Chinese Academy of Science, Fuzhou; 350108, China
[ 21 ] [Liao, Wenbin]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 22 ] [Liao, Wenbin]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 23 ] [Li, Bingxuan]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 24 ] [Li, Bingxuan]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 25 ] [Zhang, Ge]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou; 350002, China
[ 26 ] [Zhang, Ge]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China

Reprint 's Address：

[li, bingxuan]key laboratory of optoelectronic materials chemistry and physics, chinese academy of sciences, fujian institute of research on the structure of matter, fujian, fuzhou; 350002, china;;[li, bingxuan]fujian science & technology innovation laboratory for optoelectronic information of china, fujian, fuzhou; 350108, china;;

Email：

libingxuan@fjirsm.ac.cn

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