Highly efficient blue-light generation from a compact, diode-pumped femtosecond laser by use of a periodically poled KTP waveguide crystal
Optics Letters, Vol. 28, Issue 20, pp. 1963-1965 (2003)
http://dx.doi.org/10.1364/OL.28.001963
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Abstract
We present a simplified, potentially portable, and highly efficient blue-light source from a periodically poled KTP waveguide crystal with a compact femtosecond Cr:LiSAF laser. This light source generates 5.6 mW of blue average output power at 424 nm with 27 mW of incident fundamental in a single-pass extracavity arrangement at room temperature. The overall system efficiency of electrical power to blue light is 0.5%, and the internal second-harmonic generation conversion efficiency is as high as 37%. The slope efficiency of 5.5% pJ-1 at low pulse energies is, to our knowledge, the highest slope efficiency yet reported for frequency conversion into the blue spectral region.
© 2003 Optical Society of America
OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.7370) Optical devices : Waveguides
Citation
B. Agate, E. U. Rafailov, W. Sibbett, S. M. Saltiel, P. Battle, T. Fry, and E. Noonan, "Highly efficient blue-light generation from a compact, diode-pumped femtosecond laser by use of a periodically poled KTP waveguide crystal," Opt. Lett. 28, 1963-1965 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-20-1963
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