Kralik J C, Malcuit M S
Appl Opt. 1996 May 20;35(15):2587-90. doi: 10.1364/AO.35.002587.
We describe the performance of intensity and phase modulators that use an aqueous suspension of polytetrafluoroethylene (PTFE) microparticles. In this medium, the electro-optic effect is caused by the reorientation of anisotropic microparticles in an applied electric field. The intensity modulator was constructed in the Kerr geometry by the use of a sample path length of 20 µm. The response time of the modulator is less than 25 ms, and the depth of modulation was measured to be 28 dB for a switching voltage of 134 V(rms). The switching voltage necessary to achieve a π-phase shift with the phase modulator is less than 30 (Vrms).
我们描述了使用聚四氟乙烯（PTFE）微粒水悬浮液的强度调制器和相位调制器的性能。在这种介质中，电光效应是由各向异性微粒在施加电场中重新取向引起的。强度调制器采用克尔几何结构构建，样品光路长度为20 µm。调制器的响应时间小于25 ms，对于134 V（rms）的开关电压，测量得到的调制深度为28 dB。使用相位调制器实现π相移所需的开关电压小于30（Vrms）。
