Coherent reports major advance in VCSELs

Coherent reported a  significant breakthrough in improving the bandwidth of its vertical-cavity surface-emitting laser (VCSEL), paving the way for use in next-generation optical interconnects that will operate at 200 Gbps per lane and thereby enabling optical transceivers with 1.6 Tbps capacity.This improvement comes in the form of lithographic-aperture VCSELs, marking a significant departure from the oxide-aperture VCSELs that are the state-of-the-art...

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Keysight bids for Spirent, topping Viavi’s offer

 Keysight Technologies announced its intention to acquire the entire issued and to be issued share capital of Spirent Communications PLC for a cash consideration of 199 pence per Spirent share, which values Spirent at approximately £1,158 million (US$ $1,463 million1), on a fully diluted basis. Spirent shareholders will also be entitled to receive a special dividend of 2.5 pence per Spirent share, in lieu of any final dividend for the year ended...

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Lumentum enhances its 800ZR+

Lumentum announced significant performance enhancements to its 800ZR+ transceivers. These improvements enable the 800ZR+ modules to serve a wider range of applications, including expanded use in metro and regional networks through the ability to interface directly into routers. Additionally, the enhanced performance modes now make 400ZR+ and 600ZR+ operation suitable for true long-haul applications, with OSNR and dispersion tolerance enabling reaches...

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Credo and Wistron demo 800G Linear Receive Optics

Credo hosted a demonstration of Linear Receive Optics (LRO), using its Credo Dove 850 DSP, along with the 51.2 Tbps Wistron DS-6183-64O 64-port 800GbE switch. In an LRO transceiver, or Active Optical Cable (AOC), only the transmit path from the electrical input to the optical line side output includes a DSP for signal retiming and equalization. All three 800G OSFP LRO modules provided by Credo partners for this demonstration seamlessly...

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Coherent samples bi-di circulator adaptor

Coherent introduced a bi-di circulator adaptor that enables bi-directional transmission over a single fiber between two transceivers. By enabling bi-directional transmission, the fiber count is reduced by a factor of two, which allows significant cost and space savings.The Coherent bi-di circulator adaptor is a completely passive device, compatible with all transceiver LC connector ports, offering low insertion loss as well as high directivity in...

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Dell'Oro: Telecom Capex Declined in 2023

 Preliminary findings show that worldwide telecom capex, the sum of wireless and wireline/other telecom carrier investments, declined for the full year 2023 in nominal USD terms, recording the first contraction since 2017, according to a recent report from Dell'Oro Group. This deceleration in the broader capex spend is consistent with the aggregate telco equipment slump previously communicated for the six Dell'Oro telecom programs (Broadband...

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TRUMPF demos 100G VCSEL for 800G transceiver

 TRUMPF Photonic Components demonstrated 100Gbps VCSEL performance in an 800G tranceiver by Optomind. TRUMPF argues that for interconnect distances of up to 100 meters, VCSELs are the best solution in terms of power, cost and the productivity of SR modules. TRUMPF is offering both VCSELs and photodiodes as a matching pair solution, in singlets, 1x4 arrays and 1x12 arrays for 14G and 25G for the NRZ applications. The same is offered for...

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MaxLinear announces “Rushmore” 200G/lane PAM4 DSPs

Building on its Keystone family of 5nm 100G/lane DSPs, MaxLinear announced the development of its fourth generation 200G/lane PAM4 SERDES (Serializer/Deserializer) and DSP family, Rushmore. The Rushmore family encompasses a diverse array of variants tailored to meet the evolving needs of modern data centers and telecommunications networks. This includes support for fully re-timed optical modules, half re-timed optics, and active electrical cables...

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OE Solutions extends its transceiver portfolio

OE Solutions introduced two new Digital Coherent Optical (DCO) transceiver modules for applications in access networks. Both are available with optional EDFA booster amplifier and tunable optical filter.Reduced-power 100G QSFP28 DCO transceiver -- a result of OE Solutions’ continued focus on reducing the power consumption of coherent transceivers for access applications. Current improvements to the designs enable a device with a maximum power consumption...

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MACOM demos 100G/Lane Switch to Server Link with LPO

MACOM is demonstrating switch-to-server interoperability of its linear drive 100G per lane components:MACOM PURE DRIVE Transimpedance Amplifiers and Laser DriversBroadcom’s BCM57608 Series Ethernet Network Interface Card (“NIC”)Broadcom’s Tomahawk 5 Ethernet Switch ChipThe switch-to-server link represents an important use case for the linear drive architecture, which can provide an optimized interconnect solution for Cloud infrastructure. Linear...

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Celestial AI raises $175M series-C for its Photonic Fabric

Celestial AI, a start-up developing an optical interconnect for disaggregated, exascale compute and memory clusters, raised $175 million in its Series C funding.Celestial AI is working on Optical Compute Interconnect (OCI) to enable disaggregation of scalable data center memory and accelerated computing. The company says its Photonic Fabric is unconstrained by package beachfront limitations and can deliver data to any location on the compute die,...

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Marvell launches 1.6T optical DSP, 3D SiPho Engine

At #OFC24, Marvell outlined its broad-ranging strategy to optimize optical technology to meet the rising performance and power requirements of AI and cloud data centers.Products and use cases being unveiled at OFC include:Nova 2: The industry's first 1.6T optical DSP featuring 200G per lane electrical and optical I/O, Marvell Nova 2 will enable module integrators to produce industry-standard optical transceivers delivering the bandwidth density required...

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Lumentum launches 200G per Lane InP Components, 800ZR+

 Here are highlights of Lumentum's demonstrations at #OFC24:200G per Lane InP Components: Lumentum extends its indium phosphide (InP) transceiver component leadership with its new 200G Lens Integrated Photodiode (LIPD) that supports operation up to 200 Gbps per lane, enabling next-generation 800G and 1.6T optical transceivers for large-scale AI and ML applications. Featuring high responsivity and bandwidth, the 200G LIPD is designed for seamless...

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Semtech demos Linear Pluggable Optics

At #OFC24, Semtech hosted the following live demonstrations:400Gbps SR4 LPO modules and 800G SR8 LPO modules, featuring Semtech’s DirectEdge GN1858 quad VCSEL driver and GN1856 quad TIA, interoperating in isolation with latest switch ASIC technology as well as with the latest Network Interface Card (NIC) technology, emulating a Top of Rack to NIC arrangement400Gbps DR4 LPO module featuring Semtech’s FiberEdge MZM driver and GN1814 quad TIA, interoperating...

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BT tests Adtran's 100ZR pluggable

 BT Group has conducted a field trial of Adtran’s Coherent 100ZR pluggable transceiver. The trial with BT Group was conducted across a complex network infrastructure, spanning 90km over a third-party optical line system, incorporating four ROADM nodes and six amplifiers. Utilizing a tight 50GHz ROADM channel, the trial achieved enhanced spectral efficiency. Operating at less than 5 watts, the trial also set new benchmarks for energy efficiency.The...

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AST Mobile Tapes Out Space-to-Cellular ASIC

AST SpaceMobile, which is building the first and only space-based cellular broadband network accessible directly by everyday smartphones, has begun the tape-out phase for its Application-Specific Integrated Circuit (ASIC), in collaboration with TSMC.AST SpaceMobile's BlueBird Block 2 program, the AST5000 ASIC is a novel, custom and low-power architecture developed to enable up to a tenfold improvement in processing bandwidth on each satellite, unlocking...

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MaxLinear, Jabil, Intel collaborate on 800G silicon photonics

MaxLinear and Jabil announced the production availability of a family of 800G silicon photonics-based optical transceiver modules.The new modules leverage Jabil’s recently-announced collaboration with Intel and their silicon photonics platform, renowned for its manufacturing efficiency and high reliability. Based on the high-volume, high-reliability platform from Intel and MaxLinear, Jabil will supply 800G-DR8, 2x400G-FR4 and 2x400G-LR4 optical modules...

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Dell'Oro: Campus switch backlog normalizes

In 4Q 2023 worldwide Campus Switch sales declined by 4 percent year-over-year (Y/Y), marking the first quarter of decline since 4Q 2020 and signaling the onset of a multi-quarter digestion cycle in the market, according to a new report from Dell'Oro Group.Vendor performance was uneven during the quarter. Among the top five vendors, Cisco declined the most and was responsible for the bulk of the market decline. Huawei and Juniper declined modestly,...

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Lumentum demos 200G per Lane InP Components

Lumentum is extending its indium phosphide (InP) transceiver component leadership with its new 200G Lens Integrated Photodiode (LIPD) that supports operation up to 200 Gbps per lane, enabling next-generation 800G and 1.6T optical transceivers for large-scale AI and ML applications. Featuring high responsivity and bandwidth, the 200G LIPD is designed for seamless integration with flip-chip bonding techniques and is now available for sampling. The...

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Adtran shows ultra-low-power 100G PAM4 single-mode VCSEL

Adtran teamed up with Vertilas to develop a 100Gbit/s PAM4 single-mode vertical-cavity surface-emitting laser (VCSEL) with capabilities up to 1.6Tbit/s. The new VCSEL technology leverages a short-cavity single-mode design and is based on indium phosphide semiconductor material. This enables it to operate across both O-band and C-band wavelengths, delivering 100Gbit/s per channel. By stacking multiple single-mode lasers into arrays, this approach...

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AOI releases 400G, 800G Active Optical Cables based on Credo

Applied Optoelectronics, Inc (AOI) released two new multimode designs including a 400G QSFP-DD and an 800G OSFP. Both designs offers lower power consumption compared to previous generation solutions. The 400G design is available as either an Active Optical Cable (AOC) or 400GBASE-SR8 transceiver based on the Credo Seagull 452, an 8 x 50Gbps PAM4 DSP with integrated VCSEL drivers. The 800G design is available as either an Active Optical...

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Zayo launches Waves on Demand across Europe with Ciena

Zayo is launching a new Waves on Demand service leveraging its 400G fully enabled lit-fibre network in Europe. This allows customers to turn up services across Europe within just five working days, significantly reducing service delivery intervals from the industry standard of 30+ days.Zayo’s Waves on Demand, powered by Ciena’s WaveLogic 5 technology, enables customers to efficiently scale bandwidth on dedicated, pre-provisioned circuits, reaching...

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Dell'Oro: Explosive growth for AI servers

Strong demand for AI servers drove the revenues for GPU and custom accelerators by 224 percent in 2023, according to a new report from Dell'Oro Group. In 2024, in addition to continued growth momentum for AI infrastructure, we expect a broad recovery for the server and storage system component market as some of the hyperscale cloud service providers enter an expansion cycle, and enterprise IT spending gradually unfreezes."The accelerator market is...

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Coherent, Juniper and Marvell team on 800ZR

Juniper Networks is collaborating with Coherent Corp. and Marvellfo demo 800ZR.The set-up features the Juniper Networks PTX10002-36QDD Packet Transport Router, Coherent Corporation’s 800ZR transceiver and the 800G Marvell Orion coherent digital signal processor (DSP).Marvell Orion is an 800G coherent digital signal processor (DSP) for small form factor pluggable modules, delivering up to 800 Gbps of bandwidth for optical connections up to 1,000km...

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Alphawave Semi and InnoLight collaborate on LPO + PCIe 6.0

Alphawave Semi and InnoLight Technology are demonstrating low power, low latency linear pluggable optics (LPO).Operating at 64 Gbps per lane, this demonstration showcases Alphawave Semi’s PCIe 6.0 subsystem (Controller + PHY) with InnoLight’s LPO OSFP optics.The Alphawave Semi PCIe Controller + PHY subsystem is an extremely power-efficient, low-latency, and highly reliable interface IP, having been built off PAM4 SerDes IP. It is available on the...

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Nokia tunes its WaveSuite optical network automation platform

Nokia has enhanced WaveSuite optical network automation platform by providing insight into and control of customer networks with a growing roster of applications targeting specific use cases to help them optimize their network and operations, scale network capacity and monetize network assets.Key enhancements:New support within the Service Enablement application for network operators to better integrate BSS (business support systems) billing with...

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Cisco appoints Martin Lund as EVP, Common Hardware Group

Martin Lund has joined Cisco as EVP, Common Hardware Group, reporting to Chuck Robbins.Previously, Lund was Corporate Vice President of Microsoft’s Azure for Operators, where he was responsible for delivering Azure-based solutions for public and private 5G, packet core, voice, and AI operations. Before being acquired by Microsoft, Martin was Chief Executive Officer of Metaswitch Networks, a cloud native communications software company. In addition...

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Linear Pluggable Optics Consortium gets underway

A new Linear Pluggable Optics Multi-Source Agreement (LPO MSA) is underway to develop the specifications for networking equipment and optical modules.The founding participants of the LPO MSA encompass a notable array of companies such as Accelink, AMD, Arista, Broadcom, Cisco, Eoptolink, Hisense, Innolight, Intel, MACOM, NVIDIA, and Semtech Corporation.The initial target of the MSA is an optimized optical interconnect with LPO modules on both ends...

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Marvell demos 3D Silicon Photonics (SiPho) Engine

Marvell is demonstrating a 3D Silicon Photonics Engine designed for next-generation AI clusters and cloud data centers. The new device packs 32 channels of 200G electrical and optical interfaces for connecting next-generation AI clusters and cloud data centers at multi-terabit speeds. The 200 Gbps device delivers 2x the bandwidth, 2x the input / output (I/O) bandwidth density, and 30% lower power per bit compared to comparable devices with 100...

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TeraSignal intros CMOS Re-Driver for 800G LPO

TeraSignal has begun sampling a novel intelligent 400G (4x100G) PAM4 modulator driver with digital link training and link monitoring for 800G linear pluggable optical (LPO) modules. TeraSignal’s new TS8401/02 intelligent modulator driver addresses the limitations of traditional LPO modules, which unlike DSP-based re-timers, have lacked the capabilities for automatic adaptation, digital link monitoring and link training, making them challenging...

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New Photonics debuts Transmitter-on-Chip PIC

NewPhotonics introduced its second generation photonic integrated circuit with integrated optical equalizer for high-throughput optical interconnects. The enhanced transmitter-optimized chip offers breakthrough minimal latency and power performance at 800 GBps and 1.6 TBps for linear receive optics (LRO) and linear drive pluggable optics (LPO) applications in the data center.The NewPhotonics NPG102 PIC is an octal and quad parallel single mode (PSM)...

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Corning intros Multifiber Pushlok connectors

Corning introduced its Multifiber Pushlok Technology for simplifying and accelerating fiber deployments.Multifiber Pushlok is a “stick-and-click” connector technology thatallows operators to deploy more fiber in tighter spaces – an essential consideration for increasing data usage. It is a key feature in a new line of Evolv solutions, which take complicated splicing tasks out of the field to help installers connect homes and businesses more efficiently.The...

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