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The nearly transform-limited pulses are obtained by gain-switching techniquc and spectral window method. The pulse width are 20～26ps, the products of pulse width and spectral width are 0.32y～0.42, repetition rate can be as high as 4.0 GHz.
The nearly transform-limited pulses are obtained by gain-switching techniquc and spectral window method. The pulse widths are 20-26ps, the products of pulse width and spectral width are 0.32y ~ 0.42, repetition rate can be as high as 4.0GHz.