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Portable ultrafast blue light sources designed with frequency doubling in KTP and KNbO3

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12 Author(s)
Agate, B. ; Interdisciplinary Centre for Med. Photonics, Univ. of St. Andrews, UK ; Rafailov, E.U. ; Sibbett, W. ; Saltiel, S.M.
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We demonstrate an effective means of achieving compact, truly portable, and entirely self-contained ultrafast blue light sources. Using a variety of nonlinear media to achieve simple second-harmonic generation of a femtosecond Cr:LiSAF laser, we investigate the relative merits of aperiodically poled bulk and waveguide nonlinear crystals in comparison to periodically poled structures. Such a compact and convenient source of ultrashort laser pulses in the blue spectral region could be of great interest for on-site applications spanning a host of disciplines, such as biomedical imaging, optical micromanipulation, and high-resolution spectroscopy.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:10 ,  Issue: 6 )