Momeni Babak, Huang Jiandong, Soltani Mohammad, Askari Murtaza, Mohammadi Saeed, Rakhshandehroo Mohammad, Adibi Ali
Opt Express. 2006 Mar 20;14(6):2413-22. doi: 10.1364/oe.14.002413.
Here, we demonstrate a compact photonic crystal wavelength demultiplexing device based on a diffraction compensation scheme with two orders of magnitude performance improvement over the conventional superprism structures reported to date. We show that the main problems of the conventional superprism-based wavelength demultiplexing devices can be overcome by combining the superprism effect with two other main properties of photonic crystals, i.e., negative diffraction and negative refraction. Here, a 4-channel optical demultiplexer with a channel spacing of 8 nm and cross-talk level of better than -6.5 dB is experimentally demonstrated using a 4500 microm(2) photonic crystal region.
在此，我们展示了一种基于衍射补偿方案的紧凑型光子晶体波长解复用器件，其性能比迄今报道的传统超棱镜结构提高了两个数量级。我们表明，通过将超棱镜效应与光子晶体的其他两个主要特性（即负衍射和负折射）相结合，可以克服基于传统超棱镜的波长解复用器件的主要问题。在此，使用一个4500平方微米的光子晶体区域，通过实验展示了一种通道间距为8纳米、串扰水平优于-6.5分贝的4通道光解复用器。
