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Cyan teams with Calient for CDC ROADM network

13 June 2012
Packet-optical systems developer Cyan and photonic switch vendor Calient Technologies are collaborating to build what they say is the industry’s first colorless, directionless, contentionless (CDC) reconfigurable optical add-drop multiplexer (ROADM) using 3D MEMS photonic switching.
The joint solution is being developed for Minnesota Telecom’s Northeast Service Cooperative, a nonprofit public corporation serving eight counties in Northeast Minnesota. It is made possible thanks to $43.5 million in funds under the American Recovery and Reinvestment Act through the USDA’s Rural Utilities Service.  
The network will bring broadband services to more than 340,000 residents and hundreds of schools, colleges, clinics, hospitals, libraries, critical services government agencies, tribal governments and telecommunications partners within those counties.
The CDC ROADM capabilities are based on a hybrid solution consisting of Cyan’s Z-Series packet-optical transport system and Calient’s S320 3D MEMS photonic switch. The Cyan 360 software-defined operations system will be used to manage the entire network, including Calient’s photonic switches.  All three elements are needed to create true CDC functionality, the companies say.
The design brief included remotely performing all aspects of service provisioning, reconfiguration, fault isolation and test from a central network operating office with minimal need for onsite maintenance. The emphasis on remote management is perhaps not surprising given that Northeast Minnesota is extremely rural. The network spans 14 nodes and 915 fibre miles.
“The flexibility and scalability of the Cyan/CALIENT network solution uniquely solves the challenges of this project and we’re excited to be the first application to successfully deploy this architecture,” said Paul Brinkman, executive director of NESC and CEO of Minnesota Telecom.
Michael Hatfield, president of Cyan, believes that multi-vendor integration is an important part of the project, and has enabled the partners to do more than either could alone. “Cyan’s Z-Series platforms and Cyan 360 software-defined operations systems were designed to seamlessly integrate multi-vendor solutions for precisely this type of service innovation,” he said.
By Pauline Rigby