Self-starting of a self-mode-locked Ti:sapphire laser operated in a high order transverse mode

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作者：
Feng Chia Univ, Taichung, China [1 ]
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Opt Commun | / 1-2卷 / 116-120期
关键词：
Cavity resonators - Laser mode locking - Laser modes - Laser pulses - Light modulation;
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摘要：
By scanning the transverse modes of a dispersion-compensated Ti:sapphire laser cavity, we have observed self-starting of self-mode-locking from the laser operated in a high order transverse mode. Self-starting of this laser was demonstrated at various wavelengths and cavity lengths. Stable pulses shorter than 100 fs in duration were obtained at a wavelength near 778 nm. Pulse evolution dynamics was investigated by introducing a chopper to the laser cavity. A long time constant (approximately 300 ms) was observed before the laser beam becoming fully modulated.
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