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Efficient, high repetition-rate femtosecond blue source using a compact Cr:LiSAF laser

Research output: Contribution to journalArticlepeer-review

Author(s)

B Agate, Edik Urikhaevich Rafailov, Wilson Sibbett, SM Saltiel, P Battle, T Fry, E Noonan

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Abstract

We present a practical route to designing a portable femtosecond blue light source that is rugged, compact and battery-powered. An optical-optical second-harmonic generation (SHG) efficiency of 30% is reported using a diode-pumped, femtosecond Cr:LiSAF laser requiring only similar to1.2W of electrical drive. 12mW of blue average power is generated using a 3mm KNbO3 crystal in a simple, single-pass extracavity geometry. The corresponding electrical-blue efficiency of 1% is, to our knowledge, the highest reported efficiency of any femtosecond blue source. Despite conditions of large group velocity mismatch, we show that the temporally-broadened blue pulses remain well within the femtosecond regime, at similar to540fs. (C) 2002 Optical Society of America.

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Original languageEnglish
Pages (from-to)824-831
Number of pages8
JournalOptics Express
Volume10
Issue number16
Publication statusPublished - 12 Aug 2002

    Research areas

  • GENERATION

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