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We have operated a CW triply resonant OPO using a PPLN crystal pumped by aNd:YAG laser at 1.06 micron and generating signal and idler modes in the 2-2.3micron range. The OPO was operated stably in single mode operation over largeperiods of time with a pump threshold as low as 500 microwatts.Comment: 7 pages, 5 figures, submitted to JEOS

Ultra-low threshold CW triply resonant OPO in the near infrared using periodically poled lithium niobate