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Theoretical analysis of the mode coupling induced by heat of large-pitch micro-structured fibers
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In this paper, a theoretical model to analyze the mode coupling induced by heat, when the fiber amplifier works at high power configuration, is proposed, mainly taking into consideration the mode field change due to the thermally induced refractive index change and the coupling between modes.Abstract:
In this paper,a theoretical model to analyze the mode coupling induced by heat,when the fiber amplifier works at high power configuration,is proposed.The model mainly takes into consideration the mode field change due to the thermally induced refractive index change and the coupling between modes.A method to predict the largest average output power of fiber is also proposed according to the mode coupling theory.The largest average output power of a large pitch fiber with a core diameter of 190 μm and an available pulse energy of 100 mJ is predicted to be 540 W,which is the highest in large mode field fibers.read more
Citations
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Proceedings ArticleDOI
Edge-dip air core fiber for improvement of the transmission of higher-order OAM modes
TL;DR: In this paper, a dip at the edge of the annular high-index region of the air core fiber was proposed to improve the stability of the orbital angular momentum (OAM) modes transmission.
Journal ArticleDOI
Mitigate transverse mode instability by linear inner-cladding fiber
TL;DR: In this article, a linear inner-cladding fiber can mitigate the TMI effect by smoothing the heat profile and decreasing the nonlinear coupling coefficient along the fiber, which leads to shorter fiber length.
References
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Proceedings ArticleDOI
Edge-dip air core fiber for improvement of the transmission of higher-order OAM modes
TL;DR: In this paper, a dip at the edge of the annular high-index region of the air core fiber was proposed to improve the stability of the orbital angular momentum (OAM) modes transmission.
Journal ArticleDOI
Mitigate transverse mode instability by linear inner-cladding fiber
TL;DR: In this article, a linear inner-cladding fiber can mitigate the TMI effect by smoothing the heat profile and decreasing the nonlinear coupling coefficient along the fiber, which leads to shorter fiber length.