【摘 要】
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A single-resonant low-threshold type-1β-Ba2BO4[BBO]optical parametric oscillator[OPO]with tunable output from 410 nm to 630 nm at 5 kHz repetition rate is reported.By taking the noncollinear phase matching method,low-threshold OPO oper-ation could be obta
【机 构】
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Key Laboratory of Space Laser Communication and Detection Technology,Shanghai Institute of Optics an
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A single-resonant low-threshold type-1β-Ba2BO4[BBO]optical parametric oscillator[OPO]with tunable output from 410 nm to 630 nm at 5 kHz repetition rate is reported.By taking the noncollinear phase matching method,low-threshold OPO oper-ation could be obtained compared with the configuration of collinear phase matching,and the maximum optical-optical conversion efficiency of 11.8％ was achieved at 500 nm wavelength when 0.4 mJ pump pulse energy was applied.When the noncollinearity angle was preset at 1.6°,4.8°,and 6.3°,a continuously tuning output with a total spectral range of 220 nm was successfully obtained by adjusting the phase matching angle of the BBO crystal.
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