HETERODYNE PUMP PROBE TECHNIQUE FOR TIME-DOMAIN STUDIES OF OPTICAL NONLINEARITIES IN WAVE-GUIDES

被引：71

作者：

HALL, KL ^{[1
]}

LENZ, G ^{[1
]}

IPPEN, EP ^{[1
]}

RAYBON, G ^{[1
]}

机构：

[1] MIT,ELECTR RES LAB,CAMBRIDGE,MA 02139

来源：

OPTICS LETTERS | 1992年 / 17卷 / 12期

关键词：

D O I：

10.1364/OL.17.000874

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a novel pump-probe technique in which pump and probe pulses are collinear and have parallel polarizations but are still distinguishable. This new technique is especially useful for femtosecond time-domain studies of waveguides. We present experimental results for bulk (V-groove) semiconductor optical amplifiers at 1.5-mu-m and compare them with results for orthogonally polarized pump-probe measurements. The comparison demonstrates differences that are due to anisotropy of the group velocity as well as of the waveguide nonlinearity.

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页码：874 / 876

页数：3

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