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Fiber Lasers

This research is oriented to laser generation by using rare earth doped optical fibers as the active material. The Laboratory has discovered the first Nd doped ultraviolet fiber laser. Also this laboratory has the record for an ultra low threshold,  laser diode-pumped green fiber laser. Spectroscopy of Pr, Yb and Tm has also been extensively studied, as well as generation of short pulses by Q-switching.  In general, the fiber lasers are several orders of magnitude more efficient than conventional lasers, can be pumped by laser diodes and can easily operate in a single spatial mode. For these reasons fiber lasers can be considered as compact solid state lasers of high efficiency and good beam quality. Our laboratory is focused mainly in visible lasers because this region offers several challenges to the conventional systems. Recent research in up-conversion fiber lasers has demonstrated superiority over the conventional lasers in the development of blue-green sources. Principle applications include laser spectroscopy, medicine, laser displays, undersea communication, and high density data storage.

Other lasers discovered in this laboratory include the CdI, CdBr, and ZnI molecular lasers in the visible and near-IR. 

 
 
 Tm Doped Fiber Laser Pumped at 650 nm

 

Selected Papers:

 

Senin, A.A., Talmadge, J.M., Eden, J.G., Mejia, E., Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Conference Edition (IEEE Cat. No.02CH37337), 2002. " Small signal gain and saturation intensity of an upconversion-pumped Ho:ZBLAN laser amplifier and oscillator"

Senin, A.A., Talmadge, J.M., Eden, J.G., Mejia, E.,  Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest, 2002. " Small signal gain and saturation intensity of an upconversion-pumped Ho:ZBLAN laser amplifier and oscillator"

Mejia, E.B., Senin, A.A., Talmadge, J.M., Eden, J.G., IEEE Photonics Technology Letters, 14, 11, 2002. " Gain and saturation intensity of the green Ho: ZBLAN upconversion fiber amplifier and laser"

M.B. Efrain, A.A. Senin, J.G. Eden,  LEOS Summer Topical Meeting 2001, p 33-34. "  Upconversion green fiber amplifier"

D.S. Funk, J.G. Eden, IEEE Journal of Quantum Electronics, 37(8), p 980-992, 2001. " Laser diode-pumped holmium-doped fluorozirconate glass fiber laser in the green (λ ~ 544-549 nm): Power conversion efficiency, pump acceptance bandwidth, and excited-state kinetics"

 

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