Surface-emitting fiber lasers

All fiber lasers to date emit radiation only along the fiber axis. Here a fiber that exhibits laser emission that is radially directed from its circumferential surface is demonstrated. A unique and controlled azimuthally anisotropic optical wave front results from the interplay between a cylindrical...

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Veröffentlicht in:Optics express 2006-05, Vol.14 (9), p.3929-3935
Hauptverfasser: Shapira, Ofer, Kuriki, Ken, Orf, Nicholas D, Abouraddy, Ayman F, Benoit, Gilles, Viens, Jean F, Rodriguez, Alejandro, Ibanescu, Mihai, Joannopoulos, John D, Fink, Yoel, Brewster, Megan M
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Sprache:eng
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Zusammenfassung:All fiber lasers to date emit radiation only along the fiber axis. Here a fiber that exhibits laser emission that is radially directed from its circumferential surface is demonstrated. A unique and controlled azimuthally anisotropic optical wave front results from the interplay between a cylindrical photonic bandgap fiber resonator, anisotropic organic dye gain, and a linearly polarized axial pump. Low threshold (86nJ) lasing at nine different wavelengths is demonstrated throughout the visible and near-infrared spectra. We also report the experimental realization of unprecedented layer thicknesses of 29.5 nm maintained throughout meter-long fibers. Such a device may have interesting medical applications ranging from photodynamic therapy to in vivo molecular imaging, as well as textile fabric displays.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.14.003929