Amaya Waldimar, Pastor Daniel, Baños Rocio, Garcia-Munoz Victor
Institute of Telecommunications and Multimedia Applications (iTEAM), Universidad Politécnica de Valencia, Camino de Vera S/N, 46021 Valencia- Spain.
Opt Express. 2011 Nov 21;19(24):24627-37. doi: 10.1364/OE.19.024627.
We theoretically propose and demonstrate experimentally a Coherent Direct Sequence OCDMA en/decoder for multi-channel WDM operation based on a single device. It presents a broadband spectral envelope and a periodic spectral pattern that can be employed for en/decoding multiple sub-bands simultaneously. Multi-channel operation is verified experimentally by means of Multi-Band Super Structured Fiber Bragg Gratings with binary phase encoded chips fabricated with 1mm inter-chip separation that provides 4x100 GHz ITU sub-band separation at 1.25 Gbps. The WDM-OCDMA system verification was carried out employing simultaneous encoding of four adjacent sub-bands and two different OCDMA codes.
我们从理论上提出并通过实验证明了一种基于单个器件的用于多通道波分复用（WDM）操作的相干直接序列光码分多址（OCDMA）编/解码器。它呈现出宽带光谱包络和周期性光谱图案，可用于同时对多个子带进行编/解码。通过具有二进制相位编码芯片的多波段超结构光纤布拉格光栅进行实验验证了多通道操作，这些芯片的芯片间距为1mm，在1.25 Gbps速率下提供4x100 GHz的ITU子带间隔。WDM-OCDMA系统验证是通过对四个相邻子带和两种不同的OCDMA码进行同时编码来进行的。
