Fujitsu Develops 100G Coherent CFP Transceiver for Metro Network Applications
September 22, 2014
- For use in Metro Networks requiring compact, low power consumption and low cost optical network equipment -
Kawasaki, Japan, September 22, 2014- Fujitsu Optical Components Limited (FOC) announced today that it has successfully developed 100G Coherent CFP (*1) transceiver that support under 1,000km transmission distance needed in metro network applications. This product will be released in the first half of 2015. This product will help facilitate compact, low power consumption and low cost 100G optical network equipment for use in metro networks.
Due to the recent rapid increase in the volume of communications traffic, the requirement for Core Networks to handle larger capacity and longer distance on their links has led to a spread of 100G optical networks using digital coherent transmission systems (*2). The requirement for metro networks to achieve larger capacity, higher port density, and lower cost has similarly led to the spread of 100G optical networks. For core network applications the 100G Coherent Transceiver defined in the OIF (*3)100GLH-EM specification for long distance and high capacity transmission systems has been deployed. For metro networks though a smaller size, lower power consumption and lower cost coherent transceiver is required. For this application a 100G Coherent CFP Transceiver with the same interface as the CFP Transceiver that is used in 100G optical networks for short transmission distance is desired.
FOC has successfully developed 100G Coherent CFP transceiver to support under 1,000km transmission distance needed for metro network applications. This product will help facilitate compact, low power consumption and low cost 100G optical network equipment for use in the metro networks.
Compliant to CFP MSA
The 100G Coherent Transceiver has the same interface as the CFP MSA (*4)Transceiver (LR4/ER4) which is commonly used in 100G Optical Ethernet applications. Replacement of a standard MSA CFP Transceiver with this product enables support under 1,000km transmission distance needed in metro network applications.
New devices used in digital coherent modules
The low power 100G Digital Coherent Signal Processing LSI (LP-DSP) made by NTT Electronics Corporation is used to compensate waveform distortion. In-house compact semiconductor optical modulators and integrated coherent receivers are also used in the module. FOC's expertise in optical device control technology has enabled the module to remain highly stable across environmental changes.
Development of small circuit design and high density mounting technology
High density mounting and the use of circuit design technology that reduces the circuit scale has enabled a reduction in size of 50% and a reduction in volume of 60% when compared to the first generation (5" x 7") coherent transceivers.
(*2) An optical reference is combined with the incoming optical signal to produce an electrical signal out from the receiver. The waveform distortion that occurred in the optical transmission path is then compensated for by digital signal processing. This technique allows for significant reduction in system cost through the elimination of optical dispersion compensators and optical amplifiers (for loss compensation).
(*3) Acronym for Optical Internetworking Forum. The OIF is an organization that promotes standardization for the equipment and components used in optical networks.
Fujitsu Optical Components is a leading supplier of advanced, highly reliable, customer-focused optical components for datacom and telecommunication applications in the global market. Its broad product line-up includes100G Coherent Transceiver, 100GE CFP/CFP2 Transceivers, 100G/400G LN Modulators, 100G/400G Integrated Coherent Receivers, SR/IR/LR/DWDM (Fixed & Tunable) XFP Transceivers and SFP+ Transceivers. For additional information, visit http://www.fujitsu.com/jp/foc/en/.
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