US Conec, Fujikura form licensing agreement on Very Small Form Factor multi-fiber connectors

Oct. 4, 2021
The MMC, a multi-fiber connector employing a reduced-size 1x16-fiber MT-style ferrule (TMT), improves MPO port density by a factor 3x with very low insertion loss.

On Oct. 1, Fujikura and US Conec announced that the companies have reached an agreement for licensing and collaboration that enables both companies to manufacture intermateable multi-fiber and duplex VSFF (Very Small Form Factor) connectors.

As contended by the partners' statement:

The MMC, a multi-fiber connector employing a reduced-size 1x16-fiber MT-style ferrule (TMT), improves MPO port density by a factor of three, supporting higher density cabling infrastructure with very low insertion loss performance.


The new TMT ferrule has now been tooled by both US Conec and Fujikura with full intermateability eliminating assurance of supply concerns.

The TMT ferrule uses the proven alignment structure of the MT-16 ferrule which is deployed today in MPO-16 connectors and is compatible with standard fiber-optic cabling technology employing 125 µm diameter optical fibers with 250 µm pitch.

US Conec's ELiMENT MDC connector, a duplex fiber-optic connector with proven 1.25 mm diameter ferrule technology specified in the SFP-DD, QSFP-DD and OSFP pluggable transceiver MSAs, has the same footprint as the MMC and provides three times the density over the duplex LC format while supporting port breakout architectures for emerging transceiver designs.

"We dedicate ourselves to providing exceptional value for our customers and contributing society with 'Tsunagu' technologies such as cutting-edge of optical fibers, fiber-optic cables, multi-fiber connectivity and so on," noted Naoki Okada, Director and Chief Operating Officer of Fujikura. "A combination of Fujikura's game-changing technology, 6,912-fiber ultra-high density fiber-optic cables – WTC (Wrapping Tube Cable) with SWR (Spider Web Ribbon) and the MDC and MMC connectors provides optimal solutions."

The partners said that their collaboration to develop and deliver MMC and MDC connectors maximizes the synergy between Fujikura and US Conec, while enabling a multi-vendor supply chain.

The companies contend that next-generation link architectures "employing 400G technologies and beyond with state of the art pluggable transceivers or co-packaged optics are demanding higher-density fiber-optic cabling solutions that cannot be met with existing MPO, LC and SC technology."  The partners say the VSFF MMC and MDC connector formats meet those challenges for both carrier and data center performance requirements.

"The MMC and MDC connector formats usher in a new era of connectivity by delivering unmatched density, simple insertion/extraction, field configurability and optimal carrier grade performance," concluded Joe Graham, President of US Conec. "The collaborative effort between US Conec and Fujikura ensures robust supply chain demands are met while opening the door to rapid high-volume deployments with leading-edge connector technology."

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