Negative curvature hollow core fibers for Raman lasing in the mid IR spectral range

5th International Conference of Photonics and Information Optics

Kolyadin, A.N.^1 ; Alagashev, G.K.^1 ; Pryamikov, A.D.^1 ; Gladyshev, A.V.^1 ; Kosolapov, A.F.^1 ; Biriukov, A.S.^1,2 ; Bufetov, Ia^1

Fiber Optics Research Center of Russian Academy of Sciences, 38 Vavilov street, Moscow

119333, Russia^1

Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow region

141700, Russia^2

关键词: Effective mode areas;    Hollow core fiber;    IR spectral range;    Negative curvature;    Raman generation;    Raman lasers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/737/1/012009/pdf
DOI  :  10.1088/1742-6596/737/1/012009

来源: IOP

【 摘 要 】

In this paper we consider a problem of using negative curvature hollow-core fibers for creation of Raman lasers in the mid IR spectral range. New designs of this type of fibers with cladding formed by one layer of double nested capillaries are discussed and their optical properties are investigated numerically and experimentally. It will be shown that it is possible to reduce the Raman generation threshold by decreasing an effective mode area in such fibers using nested capillaries in the cladding.