Sunday, March 24, 2024

NEC and NTT test 12-core fiber over long-haul links

 NEC and NTT completed a transoceanic-class 7,280km transmission experiment using a coupled 12-core multicore fiber, which consists of 12 optical signal transmission paths in a standard outer diameter optical fiber (0.125 mm). 

MIMO technology, which is crucial for separating interfering radio signals, has been limited in optical communications to handling just two-polarization multiplexed signals due to the complexity of signal processing. This limitation is even more pronounced in multicore fiber optics, where signals are multiplexed across several cores, requiring advanced signal processing to manage issues like crosstalk during long-distance transmission. NEC has developed an algorithm that tackles these challenges, enabling the efficient separation and demodulation of signals in a 24 x 24 MIMO system (12 cores x 2 polarizations) for long-distance optical communications.

Meanwhile, NTT has focused on overcoming the difficulties in long-haul optical communications caused by non-uniform delays and losses among multiplexed signals in multicore fiber. By developing coupled multicore fiber and optical devices that minimize the effects of these non-uniformities, NTT aims to facilitate MIMO signal processing and extend the feasible transmission distance.

OpenLight: 800G, LPO, and Other Big Trends at #OFC24

 Adam Carter, CEO from OpenLight shares some perspective in advance of #OFC24:

- The transition to 800 gig and the future need for 1.6 terabits, driven by the explosion of artificial intelligence and the increasing demand for bandwidth.

- The challenges and solutions in coping with the volume of optical interconnects needed, including the strategic partnership with Jabble to bring silicon photonics to the mainstream as a manufacturable product.

- The potential impact of government funding on the market, the trend towards more foundries deploying silicon photonics, and the work needed to enable interoperability between different manufacturers' modules.

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Nubis showcases its XT1600 linear optical engine

Nubis Communications is showcasing its XT1600 linear optical engine in live and static demonstrations.

The XT1600 module is made possible by a novel 2D optical-fiber array and highly integrated high-speed silicon photonics. 

The company says its technology enables the scaling of ML/AI clusters to tens of thousands of xPUs using ultra-high-density optical interconnect while minimizing footprint, power and cost, which currently are limiting factors to the scaling of these clusters. 

Show Floor Exhibitions

  • Live demonstrations of the XT1600 carrying Ethernet and PCIe Gen 6 signals will be shown in Nubis’ meeting room MR5510 during Exhibit Hall hours from March 26 – 28. The demonstration includes all sixteen channels of the XT1600 running 100G/lane linear drive Ethernet connected to a market leading 51.2T Ethernet switch, interoperability with 800G OSFP DR8 LPO pluggable modules from Applied Optoelectronics and linear optical waveform measurements courtesy of Tektronix. The Nubis optical engine can also be seen operating PCIe Gen 6 traffic with Alphawave Semi’s PipeCORE PHY with PiCORE Controller in both the Nubis room and Alphawave Semi’s room MR5617.
  • Static demonstrations of an 8 Tbps high-density NPO solution, including lasers, with ecosystem partners O-net Technologies, Senko Advanced Components and US Conec will be exhibited as part of the future Energy Efficient Interfaces Interop Demo at the Optical Internetworking Forum (OIF) booth. Additional high-density concept demonstrations featuring OE Solutions and Lumentum lasers will be shown in the Nubis meeting room, Senko’s booth 3241 and US Conec’s booth 2440.

Ayar Labs unveils CW-WDM MSA-compliant 16-wavelength light source

Ayar Labs is now unveiling the second generation of SuperNova, which powers the company’s TeraPHY optical I/O chiplet and enables 16 Tbps of bi-directional bandwidth. Compliant with the CW-WDM MSA specification, the 16-wavelength light source offers compact packaging, operates at wide temperature ranges, and can supply light for 256 data channels, making it capable of handling the significantly higher throughput required for the massive growth in AI applications.

Ayar Labs is working with several industry leaders to demonstrate the value optical solutions deliver for AI applications. Two examples Ayar Labs will be highlighting at OFC:

  • Corning Glass Waveguide Module: Ayar Labs and Corning Incorporated have teamed up to develop a next-generation AI advancement. They have created an optical leadership solution by coupling Ayar Labs' TeraPHY optical I/O chiplets with Corning’s glass waveguide module, bringing advanced optical capabilities to the AI ecosystem. Ericsson is partnering with Ayar Labs and Corning in this AI-driven solution as part of their technology exploration for future mobile systems. This joint innovation will be shown at Ayar Labs’ booth at OFC. Together, they will highlight how the technologies create future-ready, AI-enabled innovations.
  • Teramount TeraVERSE Detachable Connector: Teramount and Ayar Labs are showcasing a concept for the next-generation TeraVERSE detachable connector to meet the infrastructure demands of next-generation AI. The detachable fiber connectivity solution features wideband surface coupling, industry-leading bandwidth density, and detachability for reliable semiconductor-grade volume manufacturing of co-packaged optics and in-package optical I/O for AI. Wideband surface coupling offers high bandwidth density with negligible loss-related wavelength dependency, resulting in less lasers, power and fibers needed compared with grating coupler solutions.

“The explosive growth of AI models is breaking the back of existing infrastructure – traditional interconnect technology simply can’t scale to the cost and throughput multi-modal AI systems will require,” said Mark Wade, CEO & co-founder of Ayar Labs. 

“Our in-package optical I/O solution gives customers the performance and energy efficiency they need as they build out their next-generation AI infrastructure. We’re pleased to showcase this innovation alongside several ecosystem partners at OFC.”

Hyper Photonix demos its 400G/800G transceivers

Hyper Photonix is demonstrating photonics transceivers operating at 400G and 800G data rates within a network comprised of Celestica switches and test equipment from EXFO, Keysight, MultiLane, Viavi, and Wilder Technologies.

Hyper Photonix optical transceivers are built on the company's proprietary Hyper Silicon platform.

"We are proud to collaborate with some industry leading networking companies to demonstrate the seamless integration of our silicon photonics transceivers in 400G and 800G networking applications," said Xavier Clairardin, CEO of Hyper Photonix. "Together, we are driving the evolution of optical networking, enabling higher data rates, greater efficiency, and enhanced connectivity in data center and AI/ML applications." 

Eoptolink launches SFP112 optical transceivers

Eoptolink Technology is introducing a family of 100G SFP112 transceivers at #OFC24.

SFP112 form-factor transceivers offer the highest single module port density for 100G connectivity. Both the optical and electrical signals operate at 106 Gbps data rate and utilize the KP4 FEC of the host system, resulting is low latency variations.

Eoptolink's 100G SFP112 portfolio consists of DR, FR, LR and ER versions fulfilling IEEE and 100G lambda MSA requirements. They are able to span 500m, 2km, 10km and 40km transmission distances respectively.

"This is a natural part of our evolutionary roadmap," explains Sean Davies, VP Sales, Eoptolink Technology Inc., Ltd. "The SFP form factor has always been the final form-factor for all previous data-rates and now 100G single lambda transmission can be addressed with SFP112. The SerDes of the host ASICs are now starting to rapidly shift to support 100G CAUI-1, thus enabling this new form-factor."

EFFECT Photonics raises $38 million

EFFECT Photonics secured $38 million Series D funding for its tunable laser technology. The company is developing proprietary digital signal processing and forward error correction technology, ultra-pure light sources and integrated optical system-on-chips.

The latest funding round was led by Innovation Industries Strategic Partners Fund, backed by Dutch pension funds PMT and PME, along with co-investor Invest-NL Deep Tech Fund and participation from other existing investors.

EFFECT Photonics raises $43 million for system-on-chip

EFFECT Photonics, a leading developer of DWDM components based on its optical System-on-Chip technology, announced $43 million in Series-C funding.EFFECT Photonics, which is a spin-off from the Eindhoven University of Technology in the Netherlands, has developed a photonic chip in which light signals can be generated, modulated, filtered, and detected. The first close of the investment round, was co-led by Smile Invest together with existing...

Effect Photonics intros pico tunable laser assembly QSFP28 100G ZR

EFFECT Photonics introduced a Pico Tunable Laser Assembly (pTLA) to address the growing demand for 100G coherent transceivers in access networks. 

The new pTLA supports both commercial- and industrial-temperature (C-temp and I-temp) operating ranges and is designed specifically to address the 100G coherent network edge, The pTLA will allow coherent pluggables to be deployed more easily and cost effectively in the access domain and will feature optimal laser performance, size and power consumption for a standard QSFP28 form-factor. Furthermore, EFFECT Photonics’ new pTLA utilizes the existing microelectronics ecosystem to allow manufacturing at scale as well as complementary coherent products and services, such as DSPs for those providers in need of a complete transceiver solution.

“Today’s operators need a network edge aggregation strategy that offers the best combination of capacity, cost-effectiveness, and performance to evolve network access effectively, and 100G coherent pluggable optics offer just that,” said Roberto Marcoccia, CEO, EFFECT Photonics. “EFFECT Photonics’ new Pico Tunable Laser Assembly will be the only purpose-designed tunable laser assembly to serve this emerging market, helping to easily scale up network edge aggregation capacity and benefit from coherent technology.”