Abstract.
An intracavity optical parametric oscillator (IOPO) based on bulk KTP crystal was constructed with a Nd:YAG slab as an active medium pumped by a 300-W diode array and Cr:YAG as a passive Q-switch. A signal pulse of 1.9-mJ energy at 1572-nm wavelength was demonstrated. In the cavity, optimized with respect to single-pulse energy, a five-fold shortening of signal-pulse duration with respect to 1064-nm pump radiation was observed. A twice as large level of signal peak power of 650 kW, compared to the pump laser in the same cavity without the IOPO, was achieved. A conversion efficiency of 44% with respect to the 1064-nm pump beam and 3.8% with respect to diode pump energy was demonstrated.
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Received: 15 October 2002 / Revised version: 19 February 2003 / Published online: 16 April 2003
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Zendzian, W., Jabczyński, J. & Kwiatkowski, J. Intracavity optical parametric oscillator at 1572-nm wavelength pumped by passively Q-switched diode-pumped Nd:YAG laser . Appl Phys B 76, 355–358 (2003). https://doi.org/10.1007/s00340-003-1143-5
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DOI: https://doi.org/10.1007/s00340-003-1143-5