“Engineering Marvels” Assist AI and Excessive-Efficiency Computing Workloads
Because the early days of optical modules like 300pin MSA and the primary 10G XFPs, VIAVI has led innovation and functions to assist the transceiver ecosystem. From module builders by way of validation, and vendor choice to integration – we now have had the precise functions and equipment to speed up the ecosystem.
Every pace enhance has led to new challenges. We’ve got seen gearboxes and CMIS module administration, PAM-4 and coherent modulation – all including complexity and driving new check and validation wants.
The most recent era of 1.6Tb modules are simply showing within the ecosystem, and to know the brand new challenges forward, let’s first take a peek inside these marvels of optical, electronics, firmware, thermal and mechanical engineering.
FECi Creates New Challenges
A 1.6Tb module would already be demanding sufficient with the transfer to a 224G PAM4 interface on {the electrical} facet and 200G/lambda optics. However now we now have the extra problem of a brand new IEEE 802.3 dj characteristic – the internal FEC.
Sometimes called FECi, the internal FEC is a brand new extra useful block that might be built-in into the most recent era of PHY DSP to assist the addition hyperlink challenges at 200G/lambda.
This FECi block wants firmware to handle and monitor operation, in addition to the traditional R&D duties of operation and validation.
Density and Thermal Problems
Preliminary 1.6Tb optical modules primarily based on OSFP-1600 are already extraordinarily demanding by way of integration and thermal administration, and because the ecosystem strikes to denser options like QSFP-DD1600, the challenges will enhance.
Module anatomy performs a key function in constructing out a structured method to check and measurement, and in a future Weblog we are going to cowl how VIAVI gives protection for all of the check and measurement challenges – from analysis & growth, by way of validation and manufacturing.
VIAVI Can Assist!
To be taught extra about our complete and built-in method to 1.6Tb module testing and validation, learn our associated weblog: What’s all this FECi Stuff?, go to VIAVISolutions.com or communicate to our VIAVI functions crew – and be looking out for added blogs in our 1.6Tb testing and validation sequence.
