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首页> 外文会议>RIAO/OPTILAS 2004 >A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform
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A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform

机译：绝缘体上硅平台中基于波导展宽的波长解复用器

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摘要

We propose a modified arrayed waveguide grating (AWG) demultiplexer formed by an array of parallel ridge waveguides of equal length fabricated in silicon-on-insulator (SOI). Each waveguide contains two sections with different widths. The lenghts of the two sections are modified from a waveguide to the adjacent waveguide, resulting in a wavelength dispersive phase array. With an appropiate demultiplexer output geometry, the light is focussed in the output slab waveguide combiner. The focal position is wavelength dependent in the transverse direction, so that the optical signal is demultiplexed into separated output channels corresponding to different spectral bands. This device does not require bending waveguide sections which are essential in a conventional AWG demultiplexer, yielding very compact devices with potentially low loss. Numerical simulations have been carried out to evaluate the influence of waveguide parameters such as lengths and widths of different waveguide sections on demultiplexer performance.
机译：我们提出了一种改进的阵列波导光栅（AWG）多路分解器，该阵列由绝缘体上硅（SOI）中制造的等长平行脊形波导阵列组成。每个波导包含两个具有不同宽度的部分。将两个部分的长度从一个波导修改为相邻的波导，从而形成波长色散相阵列。具有合适的解复用器输出几何形状，光会聚在输出平板波导组合器中。焦点位置在横向上取决于波长，因此光信号被解复用到对应于不同光谱带的分离的输出通道中。该设备不需要弯曲的波导部分，而弯曲的波导部分是传统AWG多路分解器所必需的，因此可以生产出非常紧凑的设备，损耗可能很小。已经进行了数值模拟以评估诸如不同波导部分的长度和宽度之类的波导参数对多路分解器性能的影响。

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