810-W single transversal mode Yb-doped fiber

C.-H. Liu, and A.Galvanauskaus

EECS Department University of Michigan, 1301 Beal Avenue, Ann Arbor, MI 48109-2122, Phone: (734) 615-7166; fax: (734) 763-4876; e-mail: liuch@engin.umich.edu

B. Ehlers, F. Doerfel, S. Heinemann

Fraunhofer USA, Center for Laser Technology, 46025 Port Street, Plymouth ,MI 48170

A. Carter, K. Tankala, J. Farroni

NUFERN, 7 Airport Park Road, East Granby, CT 06026

 Abstract:

We demonstrate 810-W fundamental mode beam from Yb-doped fiber laser operating at 1092 nm. Single -transverse-mode operation is achieved through distributed mode filtering in a coiled 20-mm diameter and 0.06 NA core fiber.