Monday, March 6, 2023

Eoptolink launches 1.6T and 800G transceivers using 200G optics

At OFC23, Eoptolink Technology is introducing 1.6Tbps and 800Gbps modules leveraging 200Gbps per lambda optics.

Eoptolink will be demonstrating 200Gbps per lambda modules based on EMLs, and Silicon Photonics modulators as well as Thin-Film Lithium Niobate (TFLN) modulators.

Eoptolink 1.6T module, based on a 4x FR2 in OSFP-XD form factor with a 4x SN connector interface, uses an electrical interface of 16x 100Gbps signals and an optical side with 4x 400G FR2s. Each 400G FR2 interface uses two 200G wavelengths of 1291nm and 1311nm, requiring fewer modulators and lasers and resulting in lower power consumption. These modules can support a transmission distance of up to 2km and can be used for 1.6T point-to-point connectivity or 2x800G or 4x400G breakout applications.

The 800G DR4, FR4 and 2xFR2 modules use 8x 100Gbps signals on the electrical interface and four 200G wavelengths on the optical interface.

"The move to 200Gbps per lambda is the next step in the evolution of IM-DD optics, and we're excited to be leading the way in this market," said Sean Davies, Eoptolink VP of US Sales. "Our latest modules offer increased capacity, lower cost per bit, and reduced power consumption, making them ideal for a wide range of applications."

OFS intros 4X Multicore Fibers (MCF) for SDM subsea cables

OFS introduced its TeraWave SCUBA 4X Multicore Ocean Fiber, promising four times the bandwidth in ocean applications using a four-core space division multiplexing (SDM) technology.

OFS said its SCUBA 4X multicore fiber will form the foundation of a new generation of transmission applications based on SDM.

The new fiber offers excellent transmission properties in C- and L-bands, with a demonstrated attenuation below 0.165 dB/km at 1550 nm and industry-leading adjacent core crosstalk of – 70 dB/km at 1550 nm. Other properties will be consistent with G.654.B/C compliant submarine fibers (9.7 mm mode field at 1550 nm, cutoff wavelength below 1520 nm, and standard cladding and coating dimensions).

 "OFS and FEC are committed to be industry leaders in SDM-based communication technology, with a comprehensive product portfolio encompassing fiber, connectivity and fusion splicing," said David DiGiovanni, Chief Technology Officer of OFS and President of OFS Labs. "We are working with several key customers as they adopt this ground-breaking increase in bandwidth density."

Adtran showcases coherent 100ZR QSFP28

Adtran demonstrated its Coherent 100ZR QSFP28 coherent pluggable operating over a DWDM metro ring configured with equipment at the Adtran booth as well as the Coherent Corp. and OFCnet booths.

The demo shows how operators can benefit from efficient and cost-effective deployment of coherent 100Gbit/s services with minimal power consumption and zero footprint increase.

Adtran said its Coherent 100ZR is purpose-built for the optical network edge, with its QSFP28 form factor and power specification enabling easy and cost-effective upgrades to 100Gbit/s data rates by plugging directly into existing head-ends, switches and routers.  The DSP enables the pluggable device to comply with the 5-watt QSFP28 specification.

The product was co-developed by Adtran and Coherent Corp. 

Adtran is also developing low-power silicon photonics integrated circuits that will enable even faster and more energy-efficient solutions across a wide range of applications.

“This demo is a significant milestone for network operators looking to expand their business capabilities. It highlights how our Coherent 100ZR can be easily and affordably integrated into a metro aggregation network, eliminating the need for costly infrastructure changes,” said Saeid Aramideh, VP of business development at Optical Engines, Adtran. 

“The technology we’re showcasing here will be a game-changer for service providers. It offers the ability to easily deploy coherent 100Gbit/s connectivity with compact footprint and lowest power consumption. By bringing coherent technology to the optical edge, we’re providing operators with a cost-efficient solution to upgrade edge aggregation networks to 100Gbit/s,” commented Ross Saunders, GM of Optical Engines, Adtran. “Our Coherent 100ZR will also boost sustainability by lowering our customers’ carbon footprint. What’s more, it offers a way to deliver an improved experience for end-users by supporting higher data rates and improved service reliability.”

Corning carries 400G across 2,400km with Infinera’s QSFP-DD

Infinera achieved a 400G single-wavelength transmission using a 400G QSFP-DD intelligent coherent pluggable across 2,400 km of Corning’s TXF optical fiber — double the previous record.

The demonstration featured Infinera’s ICE-X 400G intelligent coherent pluggable solution hosted in UfiSpace’s 400G disaggregated core and edge routers across 2,400 km of Corning’s TXF fiber, an ultra-low-loss, silica-core fiber with large effective area. The demonstration leveraged the advanced features supported by Infinera’s line of ICE-X intelligent coherent pluggables, including integrated system-level intelligence, programmable modulation, tuneable baud rate, efficient spectrum utilization, and 0 dBm launch power.

“This achievement underscores the value of Infinera’s fully vertically integrated and highly programmable line of ICE-X pluggables,” said Robert Maher, Infinera CTO. “It also highlights the value of integrated system-level intelligence in enabling industry-leading point-to-point ZR+ performance even when deployed in third-party elements. ICE-X enables network operators to leverage cost-efficient and power-efficient pluggable solutions across a broad range of network applications without sacrificing performance, manageability, or network resiliency.”

“We are pleased to collaborate with Infinera once again to prove how combined leading-edge technologies can work together to maximize capacity and reach,” said Sharon Bois, division vice president, product line and marketing, Corning Optical Fiber and Cable. “Our TXF fiber enables network operators to transmit more data over longer distances and help connect the unconnected, all while lowering their overall network costs.”

Windstream Wholesale carries 1 terabit wavelength over 540 km

Windstream Wholesale completed a live network trial that transmitted a 1 Terabit wave over 541 km over its Intelligent Converged Optical Network (ICON) network between Dallas and Tulsa using digital coherent optics by Acacia, now part of Cisco.

The team also looped the circuit to establish an 800 Gbps link over a live network measuring 1,082 kilometers.

The trial employed Acacia’s Coherent Interconnect Module 8 (CIM 8) module, which is powered by the Jannu DSP.

“With this trial, Windstream Wholesale and Acacia have broken through the Terabit limit, once again demonstrating the power and benefit of an open, disaggregated network,” said Art Nichols, chief technology officer for Windstream. “Our success here further validates Windstream Wholesale’s early adoption of the latest evolution advancements of coherent pluggables, and our strong partnership with Acacia enables us to understand and meet the rapidly evolving bandwidth needs of our customers.”

Acacia said its modules reduced power consumption by more than 65% while being more than 70% smaller than traditional network gear.

“As Windstream Wholesale is demonstrating, our CIM 8 module is breaking the Terabit threshold with deployable performance on a real network,” said Benny Mikkelsen, chief technology officer at Acacia. “By leveraging silicon photonics, we’ve been able to achieve the power consumption needed to bring the CIM 8 into a pluggable form factor and that is going to help Windstream cost-effectively meet their customers’ growing bandwidth demands.”

Arelion transmits 400G wavelength over 1,800km with Infinera

Infinera and Arelion (formerly Telia Carrier) announced a record-setting transmission of 400 Gb/s using a QSFP-DD pluggable coherent transceiver over 1,800 km of SMF-28 fiber in a live production network. 

The result was achieved using Infinera’s ICE-X 400G ZR+ intelligent pluggable coherent transceiver across Arelion’s production transmission network on routes between Dallas, Memphis, and Chattanooga.

The field trial also demonstrated the programmability of Infinera’s ICE-X intelligent pluggable coherent solution. By adjusting the modulation of the optical signal in the same pluggable coherent solution, the companies also demonstrated long-distance performance at 300 Gb/s and 200 Gb/s using a QSFP-DD pluggable. These achievements were made possible by leveraging Arelion’s open and disaggregated networking approach over its live network with concurrently deployed wavelengths, including those of third-party solution providers.

“We are pleased to once again partner with Infinera,” said Georgios Tologlou, Senior Network Architect at Arelion. “We were early investors in optical pluggable components to drive demonstrable value and cost-efficiency for our customers. Lab trials with perfect fiber are one thing. But we are not afraid to test these pluggables in live networks over the same fiber we’re using for live traffic, so we were happy to demonstrate the real-world potential of Infinera’s new coherent pluggable technology when implemented through Arelion’s open and disaggregated network architecture.”

Eoptolink Launches 800G, 400G and 100G Multimode BIDI transceive

Eoptolink Technology introduced multimode BIDI transceivers: 800G SR4.2, 400G SR4.2 and 100G SR1.2.  The 800G and 400G versions are available in both OSFP and QSFP-DD800 form factors. 

  • The 800G SR4.2 transceiver uses 850nm and 910nm VCSELs with 106Gbps wavelengths. Two wavelengths are combined bidirectionally onto a single fiber. The 800G SR4.2 uses 4+4 fibers in an MPO-12 connector interface. This enables a smooth upgrade path from 400G to 800G without the need to replace the fiber infrastructure.
  • The 400G SR4.2 transceiver operates at 53Gbps wavelengths and follows the same architecture of the 800G SR4.2.  It can be configured for 400G point to point connectivity or as 400G to 4x100G with breakout connectivity. Both 100G MM bidi modules and 100G SR1.2 legacy modules based on IEEE KP4 FEC are supported in the 4x100G breakout application.
  • The 100G SR1.2 modules use a QSFP28 form-factor with duplex LC interface. The 850nm and 910nm wavelengths are combined onto a single fiber to guarantee interoperability with the 400G SR4.2 modules. The line side FEC follows the IEEE KP4 FEC.

"Our customers have reached out to us and asked us to develop these modules," explains Sean Davies, Eoptolinks VP Sales, "By introducing multimode BIDI optical transceivers capable of supporting 800G, 400G, and 100G, we have enhanced our comprehensive line of Multi-Mode transceivers and AOC cables supporting data rates from 10G to 800G."