Wednesday, December 9, 2020

100G Lambda MSA completes specs for longer reach 100 GbE over SMF

The 100G Lambda Multisource Agreement (MSA) Group released three enhanced 100 Gigabit Ethernet (GbE) specifications, extending the reach to three distinct lengths of up to 20, 30 and 40 km over single-mode fiber. These specifications are based on 100 Gbps per wavelength PAM4 optical technology that the MSA was founded on and has been promoting. 

The specs address 100G-LR1-20 for 20 km reach, and 100G-ER1-30 and 100G-ER1-40 for 30 and 40 km reaches, respectively. 

“Single-wavelength 100G PAM4 optical technology has gained industry-wide adoption”, said Mark Nowell, 100G Lambda MSA co-chair. “These longer reach specifications will further accelerate broader industry acceptance of single-wavelength 100G solutions, especially for service providers and carriers who are in high demand of efficient and cost-effective optical solutions for next-generation wireline and wireless networks.”

“The MSA has its mission to promote 100G per wavelength PAM4 technology as part of optical networking roadmap”, said Jeffery Maki, 100G Lambda MSA co-chair. “These new specifications support roadmap evolution for extended reaches of up to 40km for today’s implementations and ready to migrate to higher electrical lane speed, smaller form factors, and lower power dissipation.”

The 100G Lambda MSA Group member companies are: II-VI, Alibaba, Applied OptoElectronics, Arista Networks, Broadcom, Cambridge Industries Group, China Unicom, Ciena, Cisco Systems, Color Chip, Credo, Delta, Eoptolink, Fujitsu Optical Components, HG Genuine, HiSense, HiSilicon, Innolight, Inphi, Intel, Juniper Networks, Keysight Technologies, Lightwave Logic, Lumentum, MACOM, Maxim, Maxlinear, Mellanox, Microsoft, Mitsubishi Electric, Molex, MultiLane, Neophotonics, Nokia, Panduit, Renesas, Rockley Photonics, Semtech, Sicoya, SiFotonics Technologies, Source Photonics, Sumitomo Electric, TE Connectivity, TFC Optical Communication, Tektronix and ZTE.

100G Lambda MSA completes 400G spec for 2~10 km

The 100G Lambda Multisource Agreement (MSA) Group released a 400 Gigabit Ethernet (GbE) specification up to 10 km based on 100 Gbps per wavelength PAM4 optical technology. 

The new 400GbE specification is designated as 400G-LR4-10 for duplex single-mode links up to 10 km and relies on multiplexing 4 wavelengths of 100 Gb/s PAM4 modulated optical signals.

The MSA members developed the 400GbE specification to fully address market requirements for 2 km to 10 km reaches over duplex single-mode for both 100GbE and 400GbE. The MSA believes that the 10 km reach specification will be fully interoperable with the 6 km version being developed by another industry standards group. The nomenclature use of “-10” in 400G-LR4-10 will inform users of the target reach.