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A nanosecond optical parametric oscillator in the mid-IR region with double-pass pump


An optical parametric oscillator (OPO) with double-pass pump based on MgO:PPLN and PPLN periodic structures is described. A compact nanosecond Nd:YLF laser has been used as a pump source at 1.053 μm (the pumping pulse duration is 5–7 ns at a maximum pulse energy of 300 μJ at frequencies of 1–7 kHz). The oscillation threshold of the OPO based on MgO:PPLN was varied in a range of 11–28 μJ at wavelength of 2.1–4.3 μm. The conversion efficiency from the pump wave to an idler wave decreased from 8.6 to 2.5% in the range of 2.0–4.3 μm. For PPLN-OPO the measured threshold was 36 μJ at 4.2 μm and 49 μJ at 4.7 μm. The conversion efficiency of the pump energy into the energy of an idler wave was 3.3μ-0.4% at wavelengths of 4.2–4.7 μm.

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Correspondence to D. B. Kolker.

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Original Russian Text © D.B. Kolker, M.K. Starikova, R.V. Pustovalova, A.I. Karapuzikov, A.A. Karapuzikov, O.M. Kuznetsov, Yu.V. Kistenev, 2012, published in Pribory i Tekhnika Eksperimenta, 2012, No. 2, pp. 124–128.

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Kolker, D.B., Starikova, M.K., Pustovalova, R.V. et al. A nanosecond optical parametric oscillator in the mid-IR region with double-pass pump. Instrum Exp Tech 55, 263–267 (2012).

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  • Optical Parametric Oscillator
  • Pump Energy
  • Maximum Pulse Energy
  • Pump Pulse Duration
  • Oscillation Threshold