Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
Opt Lett. 2010 Nov 1;35(21):3628-30. doi: 10.1364/OL.35.003628.
We propose an all-optical hybrid network composed of optical code division multiple access (CDMA) rings interconnecting through a reconfigurable wavelength division multiplexing (WDM) metro area ring. This network retains the advantages of both the optical CDMA and WDM techniques, including asynchronous access and differentiated quality of service, while removing the hard limit on the number of subscribers and increasing network flexibility. The all-optical network is enabled by using nonlinear optical loop mirrors in an add/drop router (ADR) that performs code conversion, dropping, and switching asynchronously. We experimentally demonstrate the functionalities of the ADR in the proposed scheme asynchronously and obtain error-free performance. The bit-error rate measurements show acceptable power penalties for different code routes.
我们提出了一种由光码分多址（CDMA）环组成的全光混合网络，通过可重构的波分复用（WDM）城域环进行互连。该网络保留了光 CDMA 和 WDM 技术的优点，包括异步接入和差异化服务质量，同时消除了对用户数量的硬性限制，并提高了网络的灵活性。全光网络通过在执行码转换、丢弃和异步切换的添加/删除路由器（ADR）中使用非线性光学环镜来实现。我们在提出的方案中实验性地演示了 ADR 的异步功能，并获得了无误码性能。误码率测量表明，不同码路由的功率代价是可以接受的。
