OBSERVATION OF MAKER FRINGES AND ESTIMATION OF CHI-3 USING PICOSECOND NONDEGENERATE 4-WAVE MIXING IN ALGAAS WAVE-GUIDES

被引：7

作者：

LE, HQ

BOSSI, DE

NICHOLS, KB

GOODHUE, WD

机构：

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 11期

关键词：

D O I：

10.1063/1.102600

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nondegenerate four-wave mixing experiments have been conducted in Al 0.2Ga0.8As ridge waveguides, using picosecond laser pulses. Maker fringes due to phase-matching requirements were clearly observed, and phase-matched nondegenerate mixing was achieved by utilizing the waveguide geometrical birefringence. Conversion efficiency up to 5×10 -3 for a coherent interaction length of 3 mm was obtained. The observed third-order nonlinear susceptibility χ( 3)(ω3= ω1+ω1-ω2) does not display any strong resonances and exhibits a relaxation time shorter than 10 ps. From these measurements it is inferred that ∥χ(3) 1111∥≥8×10-11 esu, and ∥χ(3)1111/χ(3)2112∥= 2.4±0.3 for ω1 and ω2≊1480 meV/ℏ.

引用

页码：1008 / 1010

页数：3

共 11 条

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[2]

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