Mode-locked InGaAs-AlGaAs disk laser generating sub-200-fs pulses, pulse picking and amplification by a tapered diode amplifier.
Mode-locked InGaAs-AlGaAs disk laser generating sub-200-fs pulses, pulse picking and amplification by a tapered diode amplifier.
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锁模 InGaAs-AlGaAs 盘形激光器产生低于 200 fs 的脉冲，并通过锥形二极管放大器进行脉冲拾取和放大。
DOI：
10.1364/oe.17.010820
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发表时间：
2009
期刊：
影响因子：
3.8
通讯作者：
G. Erbert
中科院分区：
文献类型：
--
作者：
P. Klopp;U. Griebner;M. Zorn;A. Klehr;A. Liero;M. Weyers;G. Erbert
利用半导体圆盘激光器（SDL）获得了脉宽为190 fs的无啁啾脉冲，其波长约为1045 nm。脉冲整形不同于已知的使用电介质增益介质的激光器的类孤子锁模过程;由快速可饱和吸收体提供的被动幅度调制是必不可少的。吸收体的光谱必须在几nm内与增益光谱匹配。锥形二极管放大器被证明是一种既能拾取又能放大SDL脉冲的器件。SDL输出的脉冲重复频率从3 GHz降低到47 MHz。
Almost chirp-free pulses with a duration of 190 fs were achieved from a mode-locked semiconductor disk laser (SDL) emitting at approximately 1045 nm. Pulse shaping was different from the soliton-like mode-locking process known from lasers using dielectric gain media; passive amplitude modulation provided by a fast saturable absorber was essential. The spectrum of the absorber had to be matched to the gain spectrum within a few nm. A tapered diode amplifier was demonstrated to be a device for both picking and amplifying SDL pulses. The pulse repetition rate of the SDL output was reduced from 3 GHz to 47 MHz.