Optical Tech > Transport | Lightwave

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ECI unveils 8x24CDCF ROADM for Apollo 9600 platform

ECI now offers an 8x24CDCF ROADM to provide additional contentionless capabilities for the company’s Apollo 9600 optical transport platform. The ROADM is based on what ECI describes as “wavelength switching technologies” superior to the multicast switches at the heart of conventional contentionless ROADMs, in that the ECI technologies enable higher density, better performance, and lower cost, the company asserts.

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LiComm offers SFP+-EDFA pluggable amplifier

LiComm Co., Ltd. of South Korea has added an SFP+-EDFA to its line of pluggable amplifiers. The amplifier module fits into any powered SFP/SFP+ slot to provide C-Band amplification, the company says.

Tencent pairs Acacia Communications’ CFP2-DCO with OPC-4 open line system

Acacia Communications, Inc. (NASDAQ: ACIA) says it has supplied its CFP2-DCO coherent optical transceivers to Chinese internet content provider Tencent for a lab demonstration of 200-Gbps wavelength transmission over open line systems. Tencent plugged the coherent modules into switch platforms, then transmitted multiple 200-Gbps wavelengths over 80 km using the OPC-4 open line system that Tencent designed.

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Blog: FEC in 100G networks and beyond

A wide variety of error correcting codes have been developed, but they generally can be classified into two main types: block and convolutional. A best of both worlds approach combines the two types in concatenated coding schemes.

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Google, SubCom, to deploy space-division multiplexing on Dunant submarine cable

Google and submarine network technology supplier SubCom (formerly TE SubCom) say they will apply space-division multiplexing (SDM) technology on the transatlantic Dunant submarine cable SubCom is constructing for Google. The use of SDM, in which transmission power is split across multiple spatial dimensions, will provide a significant, power-efficient capacity boost for Dunant over what a more traditional approach could provide.

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Ethernet Alliance to hold third Higher Speed Networking Interoperability Plugfest this month

The Ethernet Alliance has issued a call for interest for a Higher Speed Networking (HSN) Interoperability Plugfest it plans to hold the week of April 29, 2019, at the University of New Hampshire InterOperability Laboratory (UNH-IOL) in Durham, NH. This will be the third such plugfest the Ethernet Alliance has held at UNH-IOL in less than a year.

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ONF, TIP to collaborate on open optical transport

ONF and the Telecom Infra Project (TIP) have agreed to work together to foster open optical transport technology and processes. The two groups say ONF’s Open Disaggregated Transport Network (ODTN) project and TIP’s Open Optical & Packet Transport (OOPT) group are naturally synergistic, having started with similar goals but then pursuing different, albeit complementary paths, and have already conducted joint demonstrations.

ROADM wavelength selective switch component sales $1.32 billion by 2025: Grand View Research

Worldwide sales of ROADM wavelength selective switches (WSSs) and related components will reach $1.32 billion by 2025, says Grand View Research, Inc. The market research firm says ROADM technology sales revenue will enjoy a compound annual growth rate (CAGR) of 12.1% between 2018 and the end of the forecast period.

OIF, Ethernet Alliance pair on FlexE demonstration at OFC 2019

The OIF and the Ethernet Alliance hosted interop and technology demonstrations on the show floor this week at OFC 2019 in San Diego. The activities at the two booths overlapped with a fiber connection across the show floor, via which a 400 Gigabit Ethernet (400GbE) transmission generated via Flex Ethernet based on OIF’s FlexE 2.0 Implementation Agreement became part of the Ethernet Alliance’s 400GbE interop.

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Blog: Data Centers Are Driving the Entire Telecommunications Market

Optical networking used to be bolstered by large telcos, but over the last five years, this has changed. The internet content providers (ICPs) are becoming a much larger market for suppliers and are driving both innovation and increased competition among vendors. The hyperscale data centers that are at the heart of the ICPs’ networks and business models have become the number one target for optical networking and components suppliers. And, for good reasons – here are just a few.

Ciena touts WaveLogic 5 for 800-Gbps coherent transmission

Ciena (NYSE: CIEN) has unveiled WaveLogic 5, new iterations of its WaveLogic coherent engine ASIC. WaveLogic 5 will support 800-Gbps coherent transmission and come in two versions. The larger WaveLogic 5 Extreme (WL5e) will provide the full 800-Gbps horsepower, while the smaller WaveLogic 5 Nano (WL5n) will support up to 400-Gbps for applications that need a smaller footprint. Ciena plans to make the WaveLogic 5 chips available on the open market.

M-net trials 500-Gbps via Nokia super coherent Photonic Service Engine 3 with probabilistic constellation shaping

M-net has conducted field trials of the super coherent capabilities of Nokia’s Photonic Service Engine 3 (PSE-3) coherent ASIC, the two companies say. The trial saw the use of probabilistic constellation shaping to support wavelengths of 500 Gbps.

Arrcus ArcOS operating system to support 400-Gbps Tomahawk 3-based open network switch platforms

Startup software provider Arrcus, announced its ArcOS operating system now can be used to support 400 Gigabit Ethernet (GbE) and high-density 100GbE switching platforms optimized for 5G and hyperscale cloud environments. This will potentially allow service providers and enterprises to use advanced open, microservices-based networking software to build massive, scale-out cloud networks.

Microchip, Acacia Communications tout OTN processor, coherent transmission module interoperability for FlexE at up to 600 Gbps

Microchip Technology Inc. (NASDAQ:MCHP), through its wholly owned subsidiary, Microsemi Corp., and Acacia Communications, Inc. (NASDAQ:ACIA) say they have demonstrated interoperability between the former’s DIGI-G5 Optical Transport Network (OTN) processor and the latter’s AC1200 Coherent Module. The companies say they can now enable optical transport systems designers to support flexible-rate architectures that enable migration through coherent 200-, 400-, and 600-Gbps OTN networks as they adopt