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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