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Direct measurement of chirped pulses from a GMN amplifier. (a) Measured (solid blue curve) and simulated (red dashed curve) spectra for increasing pump powers. (b) Measured (blue solid curve) and simulated (red dashed curve) pulse shapes that correspond to the 77-nJ result in (a). (c) Measured compressed pulse (blue solid curve) and calculated transform-limited pulse (red dashed curve).
