Feng Ning-Ning, Sun Rong, Michel Jurgen, Kimerling Lionel C
Department of Materials Science and Engineering, Microphotonics Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Opt Lett. 2007 Aug 1;32(15):2131-3. doi: 10.1364/ol.32.002131.
Two mode-evolution-based low-loss compact-size integrated polarization rotators and transformers are presented. They are designed to fulfill the tasks of rotating mode polarizations between Gaussian-like strip waveguide modes and non-Gaussian-like slotted waveguide modes, as well as the mode transforming between horizontal and vertical slotted waveguides. Consisting of several adiabatic tapers, the presented devices can achieve complete polarization rotations and transformations between different classes of waveguide modes with a device length of tens of micrometers and with a negligible insertion loss.
本文提出了两种基于模式演化的低损耗紧凑型集成偏振旋转器和变压器。它们旨在完成高斯型条形波导模式和非高斯型缝隙波导模式之间的模式偏振旋转任务，以及水平和垂直缝隙波导之间的模式转换。所提出的器件由几个绝热锥形组成，能够在几十微米的器件长度内实现不同类波导模式之间的完全偏振旋转和转换，且插入损耗可忽略不计。
