Spatial Division Multiplexing for Multiplex Coherent Anti-Stokes Raman Scattering

被引:0
|
作者
Mansuryan, T. [1 ]
Tonello, A. [1 ]
Krupa, K. [2 ]
Desmouliere, A. [3 ]
Ntoutoume, G. Ndong [4 ]
Sol, V. [4 ]
Lefort, C. [1 ]
Zitelli, M. [5 ]
Ferraro, M. [5 ]
Mangini, F. [6 ]
Sun, Y. [5 ]
Lobato, Y. Arosa [7 ]
Wetzel, B. [1 ]
Wabnitz, S. [5 ,8 ]
Couderc, V. [1 ]
机构
[1] Univ Limoges, UMR CNRS 7252, XLIM, F-87060 Limoges, France
[2] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland
[3] Univ Limoges, Fac Med & Pharm, UR 20218 NeurIT, F-87000 Limoges, France
[4] Limoges Univ, LABCiS UR 22722, F-87000 Limoges, France
[5] Sapienza Univ Rome, Dipartimento Ingn dellInformaz Elet & Telecomun, I-00184 Rome, Italy
[6] Univ Brescia, Dept Informat Engn DII, I-25123 Brescia, Italy
[7] Univ Santiago, Compostela Praza Obradoiro S-N, Coruna 15782, Spain
[8] Ist Nazl Ottica, CNR INO, I-80078 Pozzuoli, Italy
基金
欧洲研究理事会;
关键词
Optical fiber dispersion; Laser excitation; Laser beams; Automobiles; Pump lasers; Optical fibers; Solitons; Coherent anti-stokes Raman scattering; microstructured fiber; multiplex CARS; nonlinear imaging; supercontinuum generation; OPTICAL-FIBERS; LIGHT-SOURCE; GENERATION; DISPERSION; TIME;
D O I
10.1109/JLT.2023.3297277
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We demonstrate how a narrowband pump and a broadband spectrum can be spatially multiplexed by selective coupling them in two distinct modes of a few-mode microstructure fiber. The first mode carries most of the input pump energy, and experiences spectral broadening. Whereas the second mode preserves the narrow bandwidth of the remaining part of the pump. Bimodal propagation, with a power unbalance strongly in favor of the fundamental mode, is naturally obtained by maximizing coupling into the fundamental mode of the fiber. At the fiber output, the nearly monochromatic beam and the supercontinuum carried by the two different modes are combined by a microscope objective, and used as a pump and a Stokes wave for self-referenced multiplex coherent anti-Stokes Raman scattering micro-spectroscopy. The spectral resolution, the signal-to-noise-ratio, and the possible amplification of the remaining pump beam are discussed.
引用
收藏
页码:6875 / 6883
页数:9
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