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首页> 外文会议>RIAO/OPTILAS 2004 >Digital optical switches with reconfigurable output waveguide branches in InP
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Digital optical switches with reconfigurable output waveguide branches in InP

机译：InP中具有可重配置输出波导分支的数字光开关

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摘要

A compact Y-junction waveguide switch with electrically reconfigurable output waveguide arms is demonstrated in InGaAsP/InP. Simulations indicate that the plasma effect or the thermo-optic effect can be used as the active switching mechanism, as corroborated by experimental tests. For the plasma effect the induced index change under the electrode, Δn, is negative. The Y-junction device has a measured switch contrast ratio ～ 20 dB, with a response time of ～5 ns. Using the thermo-optic effect  is positive and the observed contrast ratio is better than 10 dB. The highly localized nature of the thermal gradient in these devices yields thermo-optic switching into the hundred of nanoseconds range, several orders of magnitude faster than the overall thermal response time. This is the fastest thermo-optic switch reported to date. Fabrication of these switches, and in particular the use of O~+-ion implantation to provide electrical isolation of the waveguide branches, is described.
机译：在InGaAsP / InP中展示了一种紧凑的Y型结波导开关，它具有可电重构的输出波导臂。仿真表明，等离子体效应或热光效应可以用作有源开关机制，这一点已通过实验测试得到证实。对于等离子体效应，电极下的感应折射率变化Δn为负。 Y结器件的开关对比度实测值约为20 dB，响应时间约为5 ns。使用热光效应是正的，观察到的对比度优于10 dB。这些器件中热梯度的高度局限性使热光切换到数百纳秒范围，比整个热响应时间快几个数量级。这是迄今为止最快的热光开关。描述了这些开关的制造，尤其是使用O +离子注入来提供波导分支的电隔离。

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