Effective shortening of picosecond pulses emitted by a YAG:Nd<sup>3+</sup>laser
Evgenii M DianovInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , MoscowAleksandr Ya KarasikInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , MoscowP. V. MamyshevInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , MoscowG. OnishchukovInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , MoscowA M ProkhorovInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , MoscowM. F. Stel'MakhInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , MoscowA. A. FomichevInstitute of General Physics , Academy of Sciences of the USSR , Moscow and Physicotechnical Institute , Moscow
1984en
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ABI
Annotatsiya
A 15-fold reduction in the duration of YAG:Nd 3+ laser pulses was achieved under conditions of active mode locking and Q switching at a pulse repetition frequency ~ 1 kHz. Phase self-modulation in a single-mode quartz fiber waveguide of length 10 m resulted in broadening of the laser emission spectrum right up to ~ 10 cm −1 at the waveguide exit. The pulses were then shortened in a system with a diffraction grating. The pulse duration was measured by a correlation system in which the second harmonic was generated.
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