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High-power, variable repetition rate, picosecond optical parametric oscillator pumped by an amplified gain-switched diode

By Florian Kienle, Kang K. Chen, Shaif-ul Alam, Corin B.E. Gawith, Jacob I. Mackenzie, David C. Hanna, David J. Richardson and David P. Shepherd


We demonstrate a picosecond optical parametric oscillator (OPO) that is synchronously pumped by a fiber-amplified gain-switched laser diode. At 24W of pump power, up to 7.3W at 1.54µm and 3.1W at 3.4µm is obtained in separate output beams. The periodically poled MgO-doped LiNbO3 OPO operates with ~17ps pulses at a fundamental repetition rate of 114.8MHz but can be switched to higher repetition rates up to ~1GHz. Tunabilty between 1.4µm and 1.7µm (signal) and 2.9µm and 4.4µm (idler) is demonstrated by translating the nonlinear crystal to access different poling-period gratings and typical M2 values of 1.1 by 1.2 (signal) and 1.6 by 3.2 (idler) are measured at high power for the singly resonant oscillator

Topics: QC
Year: 2010
OAI identifier: oai:eprints.soton.ac.uk:145007
Provided by: e-Prints Soton
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