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Podcast: How did we go from 1G to 400G? The history of pluggable optics, a conversation with Ray Nering, part 2 of 4

Cisco Employee

Have you ever wondered why pluggable optics exist? Have you ever wondered what acronyms like QSFP, LR4, FEC, and PAM4 actually mean? In this episode I continue my conversation with my colleague Ray Nering. He explains to me how a lot of these came to be, starting from the days of 1Gb GBIC all the way up to today's 400Gb QSFP-DD. This is the second part of a four-episode conversation with Ray. In this episode we get into 10Gb pluggables and the drivers of next generation technology.
- Pat Chou (@patchou), Cisco Optics Product Manager

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Ray Nering is a colleague of mine in the Cisco Optics product management group and over the years has held senior management positions at other companies in the optics space, such as AT&T Microelectronics, Lucent, JDSU, Agere, Optium, and Lightwire.

Additional resources
Cisco Optics blogs: (subscribe at…iscoOpticsBlog )
Cisco Optics YouTube playlist:
Cisco Optics landing page:

02:05 Early 10G pluggables
09:17 When 10G SFP+ emerged
11:25 40G QSFP+ leverages 10G SERDES
14:50 Data center as industry driver
20:50 Next generation technology drivers