
Proceedings Paper
Spectral characterisation of erbium-doped microspherical lasersFormat | Member Price | Non-Member Price |
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Paper Abstract
We present continuing theoretical and experimental investigations into the characterisation of fibre taper coupled
microspherical lasers. We investigate the spectral emissions of these micro resonators as a function of the wavelength
and power of the pump radiation. We also consider various means of efficiently coupling radiation into and out of these
devices. We are particularly interested in studying emissions about 1.55 μm with the aim of exploiting potential
telecommunications applications of these devices. We study microspheres with diameters in the range 40-150 μm.
Pump light about 980 nm or 1480 nm is coupled into the microsphere through evanescent wave coupling between
microsphere and optical fibre. The resulting spatial and spectral distribution of radiation within the spheres is described
by whispering gallery modes. Half and full-taper optical fibres are used to both couple the pump light into the sphere
and to out couple the resulting infra red lasing. The physics of whispering gallery modes and the challenges of coupling
to such modes is discussed. Experimental techniques and results will be presented and future directions indicated.
Paper Details
Date Published: 25 April 2006
PDF: 11 pages
Proc. SPIE 6187, Photon Management II, 618708 (25 April 2006); doi: 10.1117/12.662831
Published in SPIE Proceedings Vol. 6187:
Photon Management II
John T. Sheridan; Frank Wyrowski, Editor(s)
PDF: 11 pages
Proc. SPIE 6187, Photon Management II, 618708 (25 April 2006); doi: 10.1117/12.662831
Show Author Affiliations
Brian J. Shortt, Cork Institute of Technology (Ireland)
Tyndall National Institute (Ireland)
Jonathan Ward, Cork Institute of Technology (Ireland)
Tyndall National Institute (Ireland)
Tyndall National Institute (Ireland)
Jonathan Ward, Cork Institute of Technology (Ireland)
Tyndall National Institute (Ireland)
Danny O'Shea, Cork Institute of Technology (Ireland)
Tyndall National Institute (Ireland)
Síle Nic Chormaic, Cork Institute of Technology (Ireland)
Tyndall National Institute (Ireland)
Tyndall National Institute (Ireland)
Síle Nic Chormaic, Cork Institute of Technology (Ireland)
Tyndall National Institute (Ireland)
Published in SPIE Proceedings Vol. 6187:
Photon Management II
John T. Sheridan; Frank Wyrowski, Editor(s)
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