Self-Steepening and Self-Compression of Ultrashort Optical Pulses in a Defocusing CdS Crystal
Self-Steepening and Self-Compression of Ultrashort Optical Pulses in a Defocusing CdS Crystal
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散焦 CdS 晶体中超短光脉冲的自陡峭和自压缩
DOI：
10.1103/physrevlett.82.1032
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
C. Hirlimann
中科院分区：
文献类型：
--
作者：
J. Lami;S. Petit;C. Hirlimann
在非线性折射率为负的情况下，可见光脉冲在CdS中的非线性传播的一些后果，已经在飞秒范围内使用飞行时间技术进行了展示。光脉冲的自陡化在时域上得到了直接的证明。脉冲的自缩短发生在短至$130\ensuremath{\mu}\ mathm {m}$的距离上，打开了半导体激光器内部直接光压缩的道路。预测了可调谐光孤子传播，可用于多路复用目的。
Some consequences of the nonlinear propagation of a visible optical pulse in CdS, in a regime where the nonlinear index of refraction is negative, have been exhibited using a time-of-flight technique in the femtosecond regime. The self-steepening of the optical pulse is evidenced directly in the time domain. Self-shortening of the pulse occurs on a distance as short as $130\ensuremath{\mu}\mathrm{m}$ opening the way of direct optical compression inside semiconductor lasers. Tunable optical soliton propagation is predicted which could be useful for multiplexing purposes.