Theoretical study of ytterbium-doped double-clad fiber for laser application

Patrick Even; Vincent Roncin; Brice Kerrinckx; David Pureur

doi:10.1117/12.414124

2 February 2001 Theoretical study of ytterbium-doped double-clad fiber for laser application

Patrick Even, Vincent Roncin, Brice Kerrinckx, David Pureur

Proceedings Volume 4216, Optical Devices for Fiber Communication II; (2001) https://doi.org/10.1117/12.414124
Event: Information Technologies 2000, 2000, Boston, MA, United States

Abstract

Ytterbium doped double clad fibers (YDCF) are largely used in the telecom field as high power single mode pump lasers. We present a simple model that permits to describe a double clad pumping scheme. The YDCF is modeled by a sequence of N doped sections. Each section is described by an equation and leads to a set of N coupled equations. It permits to work out the mean fraction of excited ions over each section. The determination of the mean fraction of excited ions is sufficient to evaluate the signal, pump and ASE progress along the fiber. We use this model to calculate the evolution of the amplified spontaneous emission along the fiber, and find out the optimum fiber length for laser operation. We compare this result to experimental results obtained with a homemade fiber.

Citation Download Citation

Patrick Even, Vincent Roncin, Brice Kerrinckx, and David Pureur "Theoretical study of ytterbium-doped double-clad fiber for laser application", Proc. SPIE 4216, Optical Devices for Fiber Communication II, (2 February 2001); https://doi.org/10.1117/12.414124

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