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New Modulation Formats – An Updated Tutorial

26 March 2017 Bertrand Clesca Tutorials

This updated tutorial delivers a high-level presentation of new modulation formats (both coherent and non-coherent options) for high-capacity DCI.

A Pick of the Latest Optical Transport Technology News

24 March 2017 Bertrand Clesca Optical Networking, Subsea Cable Systems

Every year the OFC conference is a big opportunity for equipment and component suppliers to share their latest optical transport technology news.

When the Cloud Funds Subsea Cable Systems

19 March 2017 Bertrand Clesca Subsea Cable Systems

This post lists, for all the relevant subsea cable systems, the Internet Content Providers (ICPs) who are customers, investors or owners of these systems.

Denmark, the New Place to Be for Data Centers?

16 March 2017 Bertrand Clesca Data Centers

Two announcements by Apple and Facebook are turning Denmark into the new place to be for data centers. Will Norway be the next hot spot?

An Active Week in Ireland with Announcements for Two New Data Center Builds

10 March 2017 Bertrand Clesca Data Centers

The two announced new data center builds in Dublin will be joining a growing data center ecosystem in Ireland.

47 Tbit/s Capacity per Fiber Pair!

26 February 2017 Bertrand Clesca Subsea Cable Systems

C+L repeater technology will deliver in 2018 up to 47 Tbit/s capacity per fiber pair (i.e. 282 Tbit/s subsea cable system capacity over regional distances).

What Drives Subsea Cable System Cost?

5 February 2017 Bertrand Clesca Subsea Cable Systems

The linear subsea cable system cost, expressed in $k per km, strongly varies across submarine cable systems, driven by cable types and installation methods.