《同调光网络的时代》白皮书概述了相干光技术和其所解决的关键功耗、成本和光网络挑战，支持电信营运商以极低的资本和营运成本来提供大量的高容量服务。PMC-Sierra POLO 40G SoC让在城域、区域和长距光网络中大规模部署同调40Gb/s成为可能，与使用非同调（non-coherent）40G技术相比，这种先进的SoC架构增加了一倍的线卡密度，能减低功耗超过50%。POLO 40G可帮助电信营运商利用现有光纤网络设施来支持40Gb/s带宽以应付迅猛增长的视频和无线数据流量，从而降低资本和营运支出。

The Era of Coherent Optical Networking

Coherent Technology dramatically increases the quantity of transmission data by increasing the spectral efficiency of that transmission. The same advanced Digital Signal Processing (DSP) technology that enables this capacity increase also eliminates an entire class of equipment Service Providers have had to deploy. Coherent Technology reduces Service Provider CAPEX and OPEX by eliminating optical impairment compensation equipment and the extensive optical link engineering manpower required to maintain that infrastructure.

PMC-Sierra's Coherent technology is the key building block to enable the mass deployment of Coherent optical technology first in Service Provider Long Haul/Regional networks and later Metro networks. 下载白皮书，请访问http://www.pmc-sierra.com/whitepaper-processor-mips-sonet-ethernet/。