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A theoretical and experimental investigation was made of the temporal and spectral characteristics of a tunable LiF crystal laser with F 2 - colour centres. The temporal profiles of the output pulses overlapped considerably the pump laser pulses because of a large amplification cross section. A study was made of the influence of a change in the pump laser wavelength on the spectral and oscillation characteristics of the LiF : F 2 - laser.
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Basiev et al. (1997) studied this question.
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