Generation of second harmonic at wide conversion band in GRIN multimode fibers

被引：0

作者：

Jonard, Maxime ^{[1
]}

Arosa, Yago ^{[1
,2
]}

Tonello, Alessandro ^{[1
]}

Mansuryan, Tigran ^{[1
]}

Colas, Maggy ^{[3
]}

Cornette, Julie ^{[3
]}

Duclere, Jean-Rene ^{[3
]}

Lefort, Claire ^{[1
]}

Couderc, Vincent ^{[1
]}

机构：

[1] Univ Limoges, XLIM UMR CNRS 7252, 123 Ave A Thomas, F-87060 Limoges, France

[2] Univ Santiago de Compostela, Dept Fis Aplicada, Santiago De Compostela 15705, Spain

[3] Univ Limoges, IRCER, UMR CNRS 7315, Limoges, France

来源：

OPTICS COMMUNICATIONS | 2024年 / 569卷

关键词：

Second harmonic generation; Non-linear optics; Optical fibers; Frequency conversion; BEAM; MICROSCOPY; LIGHT; CARS;

D O I：

10.1016/j.optcom.2024.130831

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical poling of multimode graded-index fibers (GRIN) has emerged as a promising technique for creating periodic inscriptions of the second-order nonlinear optical susceptibility chi (2) , enabling the generation of a second harmonic in silica fibers. In this work, we investigate the generation of multiple spectral peaks using a continuous broadband source in the infrared domain, generated in the same fiber by a femtosecond laser with a central wavelength different from the one used for the poling process. Building upon theoretical foundations, this work contributes at explaining how second and third-order nonlinear processes participate to the broad generation of the second harmonic in GRIN fibers.

引用

页数：6

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