Pat Chou

Data center traffic is expected to quadruple in the next five years as IoT and big data applications take off. At the same time, we’ll see growth in distributed databases and applications, increasing virtualization and virtual machine density. And all this comes with more complex and unpredictable t…

Written by Priya Maratukulam, Product Manager, Transceiver Modules Group, Cisco In our previous post we described the phenomenon of total internal reflection and how it enables light to travel long distances down optical fibers.  In this post we will discuss different types of optical fiber.  The tw…

Written by Zhenbo Xu, Technical Marketing Engineer, Transceiver Modules Group, Cisco     Non-Return to Zero (NRZ), an intuitive and simple modulation format, has been adopted for decades for both electrical and optical data transmission. However, as serial data rates increase to 25G and be…

Written by Ray Nering, Product Manager, Transceiver Modules Group, Cisco Global IP traffic has been forecasted to grow at a 24% CAGR over the next 5 years according to Cisco’s VNI analysis, but traffic within the data center, according to Google, is doubling year over year. Data centers that generat…

The OFC conference has long been the place for the world’s top technical minds to present research and innovation in all things related to optical communication, like fiber optics, data communications, and optical networking. This year it will be held in sunny San Diego, California, USA and you can…

In earlier blog posts (Looks Like We’re Upgrading Again! Dual-Rate 40G/100G BiDi Transceiver and 40/100G QSFP BiDi Transceiver’s Backward Compatibility With 40G BiDi), we introduced the dual-rate 40/100G QSFP BiDi transceiver and described how Cisco uniquely offers 40G capability and backward compat…

We mentioned recently the new dual-rate 40G/100G BiDi QSFP28 pluggable optic transceiver module. Like the single-rate 40G BiDi, it lets you seamlessly upgrade short reach links from 10G without having to replace duplex LC-connectorized MMF fiber infrastructure originally meant for 10G SR. But that&#…

It’s hard to believe that only four short years ago the data center industry saw the introduction of the QSFP+ 40G BiDi pluggable optical transceiver, which broke the mold by providing 40Gb connectivity over the same fiber format (dual MMF) as 10G SR. Until then, 40G SR4 was the primary option, and…

Written by Priya Maratukulam, Product Manager, Transceiver Modules Group, Cisco This is the first part in a series on the basic principles of fiber optic communication.  Have you ever wondered how the data we transmit through the internet is able to travel thousands of miles around the globe?  Well,…