期刊
JOURNAL OF OPTICS
卷 15, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/15/1/014007
关键词
optical switch; symmetrical metal-cladding waveguide; Goos-Hanchen shift; PMN-PT ceramics; space-division
类别
A reflection-type space-division optical switch is theoretically proposed and experimentally demonstrated based on the electrically tuned Goos-Hanchen effect in a symmetrical metal-cladding waveguide which employs the PMN-PT ceramics as the guiding layer. Owing to the high sensitivity of the ultrahigh-order modes, the variation of refractive index and thickness induced by the exertion of the controlled voltage on the PMN-PT ceramics will easily give rise to a change in the position of the reflected light. In the experiment, a three-pinhole array is put in the reflected light path and a one-to-three optical switch is achieved. The switching time for 10%-90% light intensity change and the optical crosstalk are measured to be lower than 1.63 mu s and -29 dB, respectively. Since the Goos-Hanchen shift can reach approximately 1 mm, the number of output ports can be further increased on condition that the utilized incident light has a smaller spot diameter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据