Survey of second harmonic generation in commercial germanium-doped fibers

被引:0
作者
Gemechu, Wasyhun Asefa [1 ]
Minoni, Umberto [1 ]
Modotto, Daniele [1 ]
Duport, Patrice [2 ]
Tonello, Alessandro [3 ]
Couderc, Vincent [3 ]
机构
[1] Univ Brescia, Dipartimento Ingn Informaz, Via Branze 38, I-25123 Brescia, Italy
[2] Univ Limoges, ENSIL ENSCI, 12 Rue Atlantis, F-87068 Limoges, France
[3] Univ Limoges, XLIM, UMR CNRS 7252, 123 Av A Thomas, F-87060 Limoges, France
关键词
2ND HARMONIC-GENERATION; SINGLE-MODE; 2ND-ORDER NONLINEARITY; OPTICAL-FIBER; PULSES; LIGHT;
D O I
10.1364/JOSAB.507426
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Seeded optical poling is a promising and simple method to write an effective quadratic coefficient in silica optical fibers doped with germanium. We considered commercial solid core fibers since these fibers could allow for a wide adoption of optical poling. For each fiber, we optimized the poling process and analyzed the second harmonic conversion efficiencies in relation with the fiber chemical composition as obtained resorting to energy -dispersive X-ray spectroscopy. Our comprehensive investigation shows that segments of fibers spanning 20 cm, featuring a germanium content of around 6%, can effectively convert 30 mW of 1064 nm light with efficiencies hovering around 1%. (c) 2023 Optica Publishing Group
引用
收藏
页码:296 / 304
页数:9
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