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A cw dye laser has been mode locked with a LiNbO3 phase modulator. Good mode locking was difficult to obtain. Pulses ∼500 psec wide with substructure at the detector resolution were observed. With an internal thin etalon, shorter pulses were observed with very distinct substructure at the detector resolution. Under certain circumstances pulses 200 psec wide were obtained.
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D. Kuizenga (1971) studied this question.
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