Growing up in Castleisland, County Kerry, my family was lucky to know the famous journalist Con Houlihan. With his fantastic command of the written word he was often asked to advise on the progress of young student’s written English by concerned mothers. Con’s stock reply would normally be ‘Well, they are making all the right […]
Tag Archives 400G
400G optics have already presented tremendous R&D challenges during the first phases of 400G QSFP-DD development. PAM-4 high speed signalling in both the optical and electrical domains, debugging module firmware and the interaction with the DSP firmware are clear examples, not to mention the new challenge brought about by the latest emerging standard in optical […]
Pluggable coherent optics are now being developed for 400G applications with two distinct streams emerging. One is high performance CFP2 based for 1000+km reach and multi-service applications and the other is QSFP-DD ZR (and perhaps OSFP) for DCI and metro Ethernet applications. Both streams present new challenges for test and measurement, not just to meet […]
One of the most exciting selling points of 5G is the release of congestion currently experienced on the 4G network. Add to that unparalleled internet speeds and data transfers, the new mobile internet technology is beaming with potential waiting to be scaled. Anyone on the 4G network can attest to the congestion with untimely pauses […]
400 gigabit ethernet is quite self-explanatory in the fact that it is an ethernet connection which operates four times faster than 100G. The name ‘400GbE’ stands for the next capacity rate in Ethernet interfaces. 400 GbE is advancing the optical network landscape, pushing network providers to adopt the new addition in order to stay ahead. […]
Network convergence might sound like an enigmatic concept when, in fact, it’s simply the aggregation of all electronic mediums of communication onto one ubiquitous 5G network. In essence, it merges mobile, video transmission, data communication services into a coexisting network. The need for increased bandwidth in an always-online society is the motivation that has given […]
Full-fiber broadband is already on the horizon. In fact, the APAC region are ahead of the curve as Singapore reaches first place with 93% fiber coverage across the island. The rest of the world is following along with substantial investments into similar infrastructure across multiple countries. For example, the UK recently approved a £5 billion […]
With the arrival of 5G already occurring in select countries and the anticipated launch expected to happen in most within 2020, the need for telecom engineers to be skilled and trained within all aspects of 5G is evident. In order to achieve set targets and for the roll-out of 5G to be deemed successful, telecom […]
Optical interconnectivity at 400 Gbps has introduced many new design challenges. These include the step from NRZ to PAM-4 coding with the presence of a background error rate, the new QSFP-DD form factor for transponders with thermal and integration challenges and aggressive cost expectations early in the lifecycle. One of the most difficult challenges is […]
Con Houlihan, the great Irish sports writer from my hometown of Castleisland, once replied to a young poet who had shared his writing, “Keep going. You’re making all the right mistakes.” As a young boy, the words did not fully resonate with me, but now—a bit older and hopefully wiser—I can see the wisdom therein […]
