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Proceedings Paper

New mechanism of the mode coupling in multi-core fiber lasers
Author(s): A. S. Kurkov; S. A. Babin; I. A. Lobach; S. I. Kablukov
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Paper Abstract

We present the first experimental demonstration of strong coupling between the core modes in multi-core fibers (MCF) regardless of large spacing (~28μm) between them. The effect is very sensitive to bending of the fiber and is observed in the MCF laser as well as in the probe beam schemes. We explain the observed effect by a mechanism of the mode coupling based on their indirect interaction inside the fiber via intermediate cladding mode, analogues to the Bragg mode. 70% of power conversion from one core to another with beating length of tens of centimeters in 4-core MCF is measured.

Paper Details

Date Published: 25 February 2008
PDF: 9 pages
Proc. SPIE 6873, Fiber Lasers V: Technology, Systems, and Applications, 68731Q (25 February 2008); doi: 10.1117/12.761521
Show Author Affiliations
A. S. Kurkov, Fiber Optics Research Ctr. (Russia)
S. A. Babin, Institute of Automation and Electrometry (Russia)
I. A. Lobach, Institute of Automation and Electrometry (Russia)
S. I. Kablukov, Institute of Automation and Electrometry (Russia)


Published in SPIE Proceedings Vol. 6873:
Fiber Lasers V: Technology, Systems, and Applications
Jes Broeng; Clifford Headley, Editor(s)

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