ELECTROOPTIC MODULATION AND SELF-POLING IN STRAIN-INDUCED WAVE-GUIDES IN BARIUM STRONTIUM-TITANATE NIOBATE

被引：18

作者：

MARX, JM ^{[1
]}

EKNOYAN, O ^{[1
]}

TAYLOR, HF ^{[1
]}

TANG, Z ^{[1
]}

NEURGAONKAR, RR ^{[1
]}

机构：

[1] ROCKWELL INT CORP,CTR SCI,THOUSAND OAKS,CA 91360

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 10期

关键词：

D O I：

10.1063/1.115540

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Characterization of bulk single crystals and optical waveguides in Ba1-xSrxTiyNb2-yO6 (BSTN) indicate it to be a promising new ferroelectric material for electrooptic devices. The electro-optic coefficient r(33) is measured to be 218 +/- 12 pm/V, a factor of 7 greater than LiNbO3. Data on refractive indices, dielectric constant, and Curie temperature T-c in bulk samples are also presented. Strain-induced waveguides in Z-cut samples exhibited low losses (1.8 dB/cm for TM polarization and 2.5 dB/cm for TE polarization) at a wavelength of 1.3 mu m. Electro-optic modulation was demonstrated in these waveguides to frequencies >100 MHz. A ''self-poling'' effect was found, whereby strong electro-optic modulation is observed in the strain waveguides without repoling the crystal after processing at temperatures far above T-c. (C) 1995 American Institute of Physics.

引用

页码：1381 / 1383

页数：3

共 4 条

[1] STRAIN INDUCED OPTICAL WAVE-GUIDES IN LITHIUM-NIOBATE, LITHIUM TANTALATE, AND BARIUM-TITANATE [J].