Mechanism of spontaneous switching of polarisation in an ytterbium-doped fibre laser

Journal Article · Mon Apr 30 00:00:00 EDT 2007 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2007V037N04ABEH013374· OSTI ID:21466651

Voronin, V G; Sya, Ya V; Nanii, Oleg E; Khlystov, V I ^[1]

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1. M. V. Lomonosov Moscow State University, Faculty of Physics, Moscow (Russian Federation)

The regime of polarisation switching in a double-clad ytterbium fibre laser is studied experimentally and explained theoretically. It is shown that polarisation switching appears in lasers with the long active medium (no less than 20 m) when the pump slightly exceeds the threshold. The experimentally observed properties of spontaneous polarisation switching in the ytterbium fibre laser are explained by the competition of modes with orthogonal polarisations taking into account the polarisation-dependent saturation of amplification and losses. (fibre lasers)

• OSTI ID: 21466651
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 37, Issue 4; Other Information: DOI: 10.1070/QE2007v037n04ABEH013374; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DOPED MATERIALS
LASERS
OPTICAL FIBERS
POLARIZATION
PUMPING
SATURATION
SWITCHES
YTTERBIUM
ELECTRICAL EQUIPMENT
ELEMENTS
EQUIPMENT
FIBERS
MATERIALS
METALS
RARE EARTHS