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Optics Letters

Optics Letters

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  • Vol. 25, Iss. 19 — Oct. 1, 2000
  • pp: 1430–1432

Fiber-coupled microsphere laser

M. Cai, O. Painter, K. J. Vahala, and P. C. Sercel  »View Author Affiliations


Optics Letters, Vol. 25, Issue 19, pp. 1430-1432 (2000)
http://dx.doi.org/10.1364/OL.25.001430


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Abstract

We demonstrate a 1.5-µm - wavelength fiber laser formed by placement of glass microsphere resonators along a fiber taper. The fiber taper serves the dual purpose of transporting optical pump power into the spheres and extracting the resulting laser emission. A highly doped erbium:ytterbium phosphate glass was used to form microsphere resonant cavities with large gain at 1.5µm . Laser threshold pump powers of 60μW and fiber-coupled output powers as high as 3 μW with single-mode operation were obtained. A bisphere laser system consisting of two microspheres attached to a single fiber taper is also demonstrated.

© 2000 Optical Society of America

OCIS Codes
(060.2380) Fiber optics and optical communications : Fiber optics sources and detectors
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber

Citation
M. Cai, O. Painter, K. J. Vahala, and P. C. Sercel, "Fiber-coupled microsphere laser," Opt. Lett. 25, 1430-1432 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-19-1430

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