2ND-HARMONIC GENERATION IN BULK AND WAVE-GUIDED LITAO(3) WITH DOMAIN INVERSION INDUCED BY ELECTRON-BEAM SCANNING

被引：22

作者：

GUPTA, MC ^{[1
]}

KOZLOVSKY, W ^{[1
]}

NUTT, ACG ^{[1
]}

机构：

[1] IBM CORP,DIV RES,ALMADEN RES CTR,SAN JOSE,CA 95120

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 24期

关键词：

D O I：

10.1063/1.111339

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bulk quasi-phase-matched frequency doubling experiments are reported for a lithium tantalate crystal which was periodically poled through its 0.5 mm thickness by electron beam scanning. The measured phase-matching bandwidth of 1 nm for the 2-mm-long domain inverted section was close to the theoretical value of 0.4 nm, although the conversion efficiency was lower than theoretically expected. Chemical etching revealed domain duty-cycle variations and incomplete inversions which are likely to have caused the lower conversion efficiency. Frequency doubling in waveguides fabricated in this material produced a normalized conversion efficiency of 290%/W cm2 and a phase matching bandwidth of 0.3 nm for a 1-mm-long domain inverted region.

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收藏

页码：3210 / 3212

页数：3

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