Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3263724
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We report;I fiber laser design that is capable of producing switchable radially and azimuthally polarized beams at 1.6 mu m. A c-cut Calcite crystal within I three-lens telescope is inserted in the cavity of all erbium doped fiber laser design Due to the axially symmetric birefringence of the calcite crystal, radially, and azimuthally polarized modes have spatially separated foci ill the cavity. Switching between the radially and azimuthally polarized Outputs call be achieved by simply translating one of the lenses of the telescope. Output power more than 135 mW for both polarizations has been obtained. (C) 2009 American Institute of Physics. [doi: 10.1063/13263724]
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