Abstract
Sources of broadly tunable, low noise high-repetition-rate femtosecond pulses are needed to resolve long-standing problems in ultra fast pump–probe spectroscopy, and parametric oscillators appear to be a promising source. Recently, Wachman et al.1 constructed a parametric oscillator that produced pulses as short as 105 fs in the near infrared. We report a similar device with a modified cavity design that produces ~100-fs broadly tunable infrared pulses, and a synchronized 22-mW 165-fs pulse at 620 nm, suitable for a pump in pump-probe type measurements.
© 1992 Optical Society of America
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