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Article Dans Une Revue Optics Communications Année : 2016

Efficient frequency doubling of femtosecond pulses with BIBO in an external synchronized cavity

Résumé

We experimentally demonstrate the second harmonic generation (SHG) of infrared femtosecond pulses using a BIBO crystal placed in an external ring cavity, synchronized with an input mode-locked laser at 78 MHz. A frequency doubling efficiency of 53% is achieved which is, to the best of our knowledge, the highest value ever reported for a low energy input beam of 1.4 nJ/pulse. Theoretical analysis of cavity related issues such as design, fundamental mode characteristics and fidelity against misalignments are also presented. The modeling of SHG cavity enables us to estimate the cavity losses and the mode matching visibility. Such synchronized SHG cavities in pulse domain, having higher SHG conversion efficiencies compared to their continuous wave counterparts, may find potential applications in scientific areas such as in photonics, and in quantum optics.
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Dates et versions

hal-01720307 , version 1 (01-03-2018)

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Bhaskar Kanseri, Martin Bouillard, Rosa Tualle-Brouri. Efficient frequency doubling of femtosecond pulses with BIBO in an external synchronized cavity. Optics Communications, 2016, 380, pp.148 - 153. ⟨10.1016/j.optcom.2016.05.067⟩. ⟨hal-01720307⟩
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