Generation and direct measurement of giant chirp in a passively mode-locked laser
Generation and direct measurement of giant chirp in a passively mode-locked laser
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DOI:
10.1364/ol.34.003526
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发表时间:
2009-11-15
期刊:
影响因子:
3.6
通讯作者:
Taylor, J. R.
中科院分区:
文献类型:
--
作者:
Kelleher, E. J. R.;Travers, J. C.;Taylor, J. R.
We evaluate the shape and chirp of nanosecond pulses from a fiber laser passively mode locked with a nanotube-based saturable absorber by using a synchronously scanning streak camera and a monochromator to directly measure the pulse spectrogram. We show that the stable sech(2) output pulse possesses a predominantly linear chirp, with a residual quartic phase and low noise. Comparison with analytical mode-locking theory shows a good quantitative agreement with the master equation mode-locking model. (C) 2009 Optical Society of America