Stable generation of subpicosecond pulses by feedback-controlled mode locking of a Nd:glass laser

A high-performance subpicosecond Nd:glass laser with feedback-controlled mode locking is described. Depending on operation conditions, the laser oscillator generates single pulses of 0.80-psec duration and 10-μJ energy or microsecond trains of approximately 400 pulses with 1.3-psec duration and 0.8-mJ total energy. Stable performance, a repetition rate of 6–10 Hz, and a peak-to-background intensity ratio of >5 × 105 are reported.

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