Francois Moore
Optical Strategist
Francois Moore is the Optical Strategist for the Fujitsu 1FINITY and DWDM Optical Transmission portfolios. Previously, he worked in product planning, product management and marketing within the Fujitsu FLASHWAVE product family. Francois has over 25 years of experience in various optical transport areas, including ROADM & DWDM, G.709 & OTN, as well as SONET & Ethernet. He is currently pursuing his Ph.D. at the University of Texas in Dallas and looks forward to pursuing his love of teaching as a professor or guest lecturer.
Andres Viera
Disaggregating the Transponder
The Open Optical Networking Blogs, part 4 In this blog series, Fujitsu’s Francois Moore explores the key issues and current developments in open optical networking. The topics addressed include Adding Alien Wavelengths, Controlling Multi-Vendor Optical Networks, Opening the ROADM network, Disaggregating the Transponder, and Planning with Multi-Vendor Optical Design Tools. Another level of disaggregation is emerging:
Andres Viera
Opening the ROADM Network
The Open Optical Networking Blogs, part 3 In this blog series, Fujitsu’s Francois Moore explores the key issues and current developments in open optical networking. The topics addressed include Adding Alien Wavelengths, Controlling Multi-Vendor Optical Networks, Opening the ROADM network, Disaggregating the Transponder, and Planning with Multi-Vendor Optical Design Tools. The first two blogs of
Andres Viera
Controlling Multi-Vendor Optical Networks
The Open Optical Networking Blogs, part 2 In this blog series, Fujitsu’s Francois Moore explores the key issues and current developments in open optical networking. The topics addressed include Adding Alien Wavelengths, Controlling Multi-Vendor Optical Networks, Opening the ROADM network, Disaggregating the Transponder, and Planning with Multi-Vendor Optical Design Tools. My previous blog, Adding Alien Wavelengths, identified
Andres Viera
Adding Alien Wavelengths
The Open Optical Networking Blogs, part 1 In this blog series, Fujitsu’s Francois Moore explores the key issues and current developments in open optical networking. The topics addressed include Adding Alien Wavelengths, Controlling Multi-Vendor Optical Networks, Opening the ROADM network, Disaggregating the Transponder, and Planning with Multi-Vendor Optical Design Tools. The simplest entry point into
Andres Viera
Is 2021 The Year for Open Optical Networking?
In this blog series, Fujitsu’s Francois Moore explores the key issues and current developments in open optical networking. The topics addressed include Adding Alien Wavelengths, Controlling Multi-Vendor Optical Networks, Opening the ROADM network, Disaggregating the Transponder, and Planning with Multi-Vendor Optical Design Tools. The last five years have seen the emergence of various initiatives to transform
Andres Viera
Key Recommendations for Optical Channel Planning in Flex-grid ROADM Networks
Key Recommendations for Optical Channel Planning in Flex-grid ROADM Networks The emergence of higher baud rate transponders is fueling the migration from 50GHz fixed grid ROADM networks to Flex-grid, where wavelengths can occupy a variable spectral width in increments of 12.5GHz in width and 6.25GHz in terms of central frequency. Flex-grid certainly provides service providers
Andres Viera
How to Extend the Life of the Fixed Grid ROADM Network
With swelling market demand for higher speed services such as 400GbE, or the need to increase bandwidth capacity, service providers are considering upgrading their existing fixed 50GHz grid ROADM infrastructure. But did you know it’s possible to keep your existing network while achieving both goals, and avoid the large CAPEX outlay (not to mention the
Andres Viera
What is a Contentionless ROADM?
The ROADM Tutorial Blogs, part 4 In this series of tutorials I explain the key functionality (and their benefits) that underpin next-generation ROADM: Colorless, Directionless, Contentionless, and Gridless (CDC-G) functionality. In this blog, I explain the second “C” – Contentionless – and the operational benefits it provides. Previous ROADMs were Contentionless First, let’s define contentionless.
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What is a Directionless ROADM?
The ROADM Tutorial Blogs, part 3 In this series of tutorials I explain the key functionality (and their benefits) that underpin next-generation ROADMs: Colorless, Directionless, Contentionless, and Gridless (CDC-G) functionality. In this blog, I explain the “D” in CDC-G – Directionless – and the operational benefits it provides. Before Directionless – the limitations of previous
Andres Viera
What is a Colorless ROADM?
The ROADM Tutorial Blogs, part 2 In this series of tutorials, I explain the key functionality (and their benefits) that underpin next-generation ROADMs: Colorless, Directionless, Contentionless, and Gridless (CDC-G) functionality. In this blog, I explain the “C” in CDC-G – Colorless – and the operational benefits it provides. Before Colorless – the limitations of previous ROADMs
Andres Viera
What is a Flex-grid ROADM?
My previous blog discussed the advantage of increasing the baud rate of a wavelength in order to increase transport capacity without sacrificing reachable distance. One drawback of this approach is the fact that the spectral width of the wavelength increases from 50 GHz to either 75 GHz, 100 GHz or even 150 GHz depending on the selected baud rate.
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Balancing Capacity, Distance and Cost with Baud Rate and Modulation
Even as networks struggle to adapt to changing customer patterns and surging demands for bandwidth, telecommunication providers must continue to provide reliable, cost-efficient services. This means delivering more dynamic capacity and reach at the lowest cost per bit. In today’s high-speed optical networks, two key variables affecting capacity and cost are baud rate and modulation density; both can be managed and optimized.