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100Gb/s optical engine targets data centers, HPC

Posted: 07 Mar 2012 ?? ?Print Version ?Bookmark and Share

Keywords:optical engine? data center? HPC?

Kotura Inc. has developed a low-power 100Gb/s optical engine that according to the company supports the interconnect fabric for next generation data centers and high performance computers (HPC). The optical engine chips are based on Kotura's micron scale manufacturing platform.

The silicon photonics platform supports optical engines using Wave Division Multiplexing (WDM) in which different signals can share the same path. Claiming to be the only silicon photonics provider to offer WDM, Kotura's optical engine offers reduced cost of fiber and associated connectors within the interconnect fabric for 4x25GHz solutions by a factor of four. It can also expand from four channels to eight, 16 or even 40 channels in a single strand of optical fiber, added the company. Likewise, Kotura's silicon photonics platform supports optical engines using parallel fiber channels.

Because Kotura's platform is capable of high yield manufacturing, attractive price volume curves can be achieved, the company boasted. Kotura has integrated important functionalities such as flip chip attached lasers, high performance WDM de/multiplexers, fast low power modulators and high-speed detectors into a pair of silicon chips eliminating the need for hundreds of piece parts and dozens of assembly steps. The Kotura optical engine is so small that a 100Gb/s transceiver will easily fit inside a QSFP package, the smallest 40G package on the market today, continued the company.

Finding fast enough interconnects has become the limiting factor for the entire industry. With 10 core microprocessors, four per server, virtualization and 48-60 servers per rack, the aggregate bandwidth at the top-of-rack switch will hit 480-600G. This will require four to five 100G up links per rack and large data centers using 200-500 racks.

Kotura devices have reliably logged more than one billion channel hours of operation.





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