Photonic crystal and quantum dot technologies for all-optical switch and logic device
Photonic crystal and quantum dot technologies for all-optical switch and logic device
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DOI：
10.1088/1367-2630/8/9/208
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发表时间：
2006-09-22
影响因子：
3.3
通讯作者：
Baets, Roel
中科院分区：
文献类型：
--
作者：
Asakawa, Kiyoshi;Sugimoto, Yoshimasa;Baets, Roel
综述了基于对称马赫曾德(SMZ)型、超小型、超快速全光开关(PC-SMZ)和逻辑器件的纳米光子技术--砷化镓二维光子晶体(2DPC)平板光波导(WGS)和InAs基量子点(QD)。作为第一阶段，已经使用尺寸为600微米x 300微米的芯片演示了超快(类似PS)和超低能量(类似100 fJ)的开关。第二阶段是为未来的超快光子数字处理器创造一个基于PC-SMZ的具有锁存功能的超快光子逻辑开关。其中一个优先课题是建立一种新的设计方法，即宽/平带宽、高透射率、低反射率的2DPC-WGS的拓扑优化(TO)方法。二是采用金属掩模(MM)分子束外延(MBE)生长方法，研制出具有较大光学非线性(ONL)的高密度、高密度、高均匀、选区生长的InAs量子点。最近关于这两个主题的结果鼓励我们达到最终目标。
Nano-photonic technologies of GaAs-based two-dimensional photonic crystal (2DPC) slab waveguides (WGs) and InAs-based quantum dots (QDs) are reviewed for a symmetrical Mach - Zehnder (SMZ) type, ultra-small and ultra-fast all-optical switch (PC-SMZ) and logic device. As the first phase, ultra-fast (similar to ps) and ultra-low energy (similar to 100 fJ) switching has been demonstrated using a chip 600 mu m x 300 mu m in size. The second phase is to create a PC-SMZ-based ultra-fast photonic logic switch with a latch function for a future ultra-fast photonic digital processor. One of the priority subjects is to establish a new design method, i.e., topology optimization (TO) method of 2DPC-WGs with wide/flat bandwidth, high transmittance and low reflectivity. Another one is to develop selective-area-grown, high-density and highly uniform InAs QDs with large optical nonlinearity (ONL) by using a metal-mask (MM) molecular beam epitaxy (MBE) growth method. Recent results regarding these two subjects encourage us to reach the final goal.