NTT Photonics Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan.
Opt Lett. 2011 Apr 1;36(7):1140-2. doi: 10.1364/OL.36.001140.
We demonstrate an optical orthogonal frequency division multiplexing (OFDM) demultiplexer with an optical discrete Fourier transform circuit fabricated using silica planar lightwave circuit technology. This compact device can process an arbitrary number of subcarriers. The operation of a ten-channel device is demonstrated by demultiplexing a 100 Gbit/s (10 subcarrier × 10 Gbits/s) OFDM signal. We also discuss a main factor affecting characteristics degradation of the device.
我们展示了一种使用二氧化硅平面光波导技术制造的光正交频分复用（OFDM）解复用器的光离散傅里叶变换电路。这种紧凑的器件可以处理任意数量的子载波。通过解复用 100 Gbit/s（10 个子载波×10 Gbit/s）OFDM 信号，演示了一个具有 10 个通道的设备的工作原理。我们还讨论了影响器件特性劣化的一个主要因素。
