HIGH-SPEED CUTOFF MODULATOR USING A TI-DIFFUSED LINBO3 CHANNEL WAVEGUIDE

被引:29
作者
NEYER, A
SOHLER, W
机构
[1] Institut für Physik der Universität Dortmund
关键词
D O I
10.1063/1.91091
中图分类号
O59 [应用物理学];
学科分类号
摘要
A high-speed intensity modulator has been fabricated taking advantage of the dependence of waveguide cutoff on its index of refraction. The modulator consists essentially of a 2-μm-wide 3.2-mm-long Ti-diffused channel waveguide in y-cut LiNbO3. By controlling the propagation cutoff through the electro-optic effect, an intensity modulation is obtained. The potential bandwidth, optical insertion loss, and specific energy at 0.63 μm are 5.3 GHz, 11 dB, and 230 μW/MHz, respectively. A brief analysis of modulator operation is given based on coupled-mode theory.
引用
收藏
页码:256 / 258
页数:3
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