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Fine tuning of a triply resonant OPO for generating frequency degenerate CV entangled beams at low pump powers

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Abstract

A method of achieving triple resonance in a frequency-degenerate but polarization-non-degenerate optical parametric oscillator (OPO) with external mirrors is illustrated. The OPO is brought to the triple-resonance condition by tuning the non-linear crystal temperature and tilting the cavity axis. The interplay among temperature and tilting mismatch and gain is analyzed together with the allowed ranges of variation of these parameters. The method has been successfully applied to an OPO based on a periodically poled KTP crystal. Calibration of the system is reported together with parametric gain and squeezing measurements below threshold as a test of reliability and efficiency.

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Authors and Affiliations

  1. CRS Coherentia CNR-INFM, Napoli, Italy

    V. D’Auria

  2. Dipartimento di Scienze Fisiche, Università ‘Federico II’ di Napoli, Napoli, Italy

    S. Fornaro, E.A. Sete & S. Solimeno

  3. CNISM – NAPOLI Complesso, Universitario di Monte S. Angelo, Via Cintia, 80126, Napoli, Italy

    S. Fornaro, A. Porzio & S. Solimeno

Authors
  1. V. D’Auria
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  2. S. Fornaro
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  3. A. Porzio
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  4. E.A. Sete
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  5. S. Solimeno
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Corresponding author

Correspondence to A. Porzio.

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PACS

42.50.-p; 42.65.-k

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D’Auria, V., Fornaro, S., Porzio, A. et al. Fine tuning of a triply resonant OPO for generating frequency degenerate CV entangled beams at low pump powers. Appl. Phys. B 91, 309–314 (2008). https://doi.org/10.1007/s00340-008-2986-6

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  • DOI: https://doi.org/10.1007/s00340-008-2986-6

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