Arelion Achieves 64% CAPEX and 76% OPEX Savings Enabled by Bright 400ZR+ Deployment

In August 2023, Arelion announced that it has taken another landmark step in converging its IP and optical layers as the first global network to deploy 400G QSFP-DD ZR+ Bright coherent optical modules in its production #1 ranked IP backbone. This first regional reach deployment spans 675 kilometers between Stockholm and Copenhagen over third-party Optical Open Line System (O-OLS). According to Arelion, the streamlined architecture eliminates the need for excessive hardware, thereby reducing potential points of failure. As a result, it achieves 64% CAPEX and 76% OPEX savings. This contributes to a significantly more cost-efficient network with fewer interfaces to control and maintain.

Highlighting the benefits of these modules, Arelion’s Mattias Fridström shares his insights in this video from testing the technology to how they can potentially transform network infrastructures.

Mattias Fridström, Vice President & Chief Evangelist at Arelion shares the benefits of deploying Acacia’s 400G QSFP-DD Bright Optical Modules in Arelion’s production IP backbone

Dariusz Solowiej, VP Network Technology & Customer Operations at Arelion added, “With constantly rising demand for our IP services and increasing traffic across the Internet, Arelion is constantly looking to deploy the latest technology. The deployment of 400G QSFP-DD Bright Optical Modules will ensure cost-effective, high-performance connectivity for our customers and help us grow our network in scale as we continue to connect the world. In addition, the coherent pluggable modules also help us achieve our sustainability goals through improved energy efficiency and redeploying redundant hardware assets.”

CENIC Validates Coherent Pluggable Optics for Big Data Applications
Using Bright QSFP-DD coherent optics, the Corporation for Education Network Initiatives in California (CENIC) turned up a 300 Gbps optical service over CENIC’s production line system between Los Angeles and Sunnyvale and confirmed the error-free performance of the service with a comfortable operating margin.

According to CENIC, the new-generation coherent pluggables integrate an amplifier, making it possible to transmit from the optic at power levels that match those of typical transponder line cards. As a result, external amplification is no longer needed to boost the power level transmitted from the optic before it reaches the optical line system.  As explained by Sana Bellamine, CENIC’s Director of Regional and International Infrastructure, “The elimination of the external amplification requirement is an important step toward simplifying the provisioning of optical services and facilitates the adoption of coherent pluggables over our production line system.”

CENIC Validation Setup Diagram with Bright ZR+ Coherent Pluggables with Integrated Amplifiers

Announced earlier this year, Vodafone Turkey and Sipartech trials are summarized in this article.

Bright 400ZR+ QSFP-DD Modules Expands Applications by Enabling Longer Reach Applications
With an optical transmit power at least 10X greater than 400ZR, Bright QSFP-DD modules enable network operators to expand applications that can be addressed by 400G coherent pluggables in router-based optical deployments to include brownfield and greenfield metro/regional networks with reconfigurable optical add-drop multiplexer (ROADM) nodes.

Bright 400ZR+ QSFP-DD modules expand applications of 400G coherent pluggable to brownfield and greenfield metro/regional networks with ROADM nodes.

Visit Us at ECOC OIF 400ZR+ Interop Demonstration
If you are attending ECOC and want to see the Acacia Bright ZR+ coherent module in action, check out the 400ZR+ optics interoperability demonstration at the OIF Booth #304.  We hope you see you there!

Additional Resources

• Blog: Brightening ROADM Networks
• Product Page: Bright 400ZR+ coherent pluggable QSFP-DD module

400G Pluggables and Terabit Era Optics
The 400G coherent pluggable market has been the fastest growing coherent technology to date and, according to CignalAI, as of 2022, Acacia’s comprehensive 400G ZR/ZR+ portfolio is leading the market with 60% market share.

Acacia’s  Bright 400ZR+ QSFP-DD pluggable coherent optical module with high-transmit power is in high demand with a steady stream of trials and deployments. Leading up to ECOC, we saw Bright deployments announced from Arelion and the Corporation for Education Network Initiatives in California (CENIC) and earlier this year, Vodafone Turkey and Sipartech announced their own Bright field trials.

While pluggables or router-based DCOs (Digital Coherent Optics) are becoming popular for requirements in DCI, metro and some long-haul applications, transponder-based coherent solutions are still being used for long-haul, ultra-long haul and subsea. Acacia’s performance optimized multi-haul coherent solutions have proven to be extremely effective for these applications. Our single carrier pluggable 1.2T Coherent Interconnect Module 8 (CIM 8), shipping since late 2022, is leading the industry into the Terabit Era. To date, we have seen record-breaking CIM 8 field trial announcements from Nysernet, China Mobile and Windstream Wholesale.  The CIM 8 enables these network operators to achieve the highest capacity and reach today while maximizing transmission data rate across a wide range of multi-haul network applications.

Defining the Path to 800G Pluggables
Following the explosive growth of 400G pluggables, next-generation switch/router ASICs are being introduced with 800G I/O port speeds, creating the need for 800G optical interfaces for DCI. Like the 400G MSA pluggable cycle, multiple standardization bodies such as OIF, Open ROADM and the IEEE are working in parallel to provide industry standards for 800G optical transmission and 800 Gigabit Ethernet (GbE), helping to foster economies of scale. While module vendors are introducing the required technologies to enable low power 120+Gbaud solutions that would fit into small form-factor modules such as QSFP-DD and OSFP.

To meet customer needs and drive future adoption, it’s important for 800G coherent MSA pluggables to have several key features and capabilities including optical transmission, client traffic, low power consumption, and interoperable module management.  We believe the key functional requirements that operators are looking for to make this transition include:

• Support for OIF 800ZR and high-performance interoperable Probabilistic Constellation Shaping (PCS) modes
• Multi-haul capable
• High transmit (Tx) optical power option
• 800GbE client traffic support
• Multiplexing lower speed 100/200/400GbE electrical client traffic
• Low power consumption
• Coherent Common Management Interface Specification (C-CMIS) compliance

With the first 800G pluggable deployments expected in 2024, these future solutions can plug directly into switch/router ports to further drive adoption of IP-over-DWDM router-based optical network architectures.

Coherent Interoperability Participation:  OIF and OpenZR+ MSA
Continuing its commitment to building an industry-wide ecosystem, Acacia is excited to be participating in the OIF’s largest-ever multi-vendor interoperability event in booth #304 at ECOC. Come see our participation in the 400ZR+ optics and Common Management Interface Specification (CMIS) implementations interoperability demonstrations.

In addition, Acacia has continued to play a key role as a member of the OpenZR+ Multi-Source Agreement (MSA) Group. Leading up to ECOC, the group announced that it had published the OpenZR+ Rev 3.0 specification, which defines a higher performing 400G 8QAM mode as well as a higher transmit power mode. This new specification is designed to further expand the application space for OpenZR+ with new modes that can address longer reaches and a wider range of network architectures.

Come See Us!
If you are attending the show and want to connect, we’d welcome the opportunity to meet with you. Click here to set up a meeting. We hope to see you in Scotland.

The aggressive ramp of 400G coherent pluggables has been faster than any previous coherent technology generation. Acacia’s comprehensive 400G pluggable portfolio in QSFP-DD, OSFP and CFP-DCO form factors and including support for 400ZR, OpenZR+ and Open ROADM MSA has led to its more than 50% market share in this category.

Field trials are now underway with several network operators looking to leverage Acacia’s newest 400G pluggable, the Bright 400ZR+ QSFP-DD module with high-transmit power for 400G transmission over ROADM line systems. With announcements already from Arelion, Vodafone Turkey, and most recently Sipartech, the Bright 400ZR+ module with greater than +1 dBm transmit power is proving to help network operators meet bandwidth demands while driving economies of scale on a common technology platform.

Cisco and Sipartech Successfully Test 400G Over 1,337 km to Deliver a More Efficient Transport Network for the Future
Cisco and Neutral European infrastructure carrier, Sipartech, announced the successful trial deployment of a 400G circuit using the Cisco NCS 5504 network convergence system together with the high transmit power Bright 400G ZR+ QSFP-DD optical module over 1,337 km.

For the trial, Sipartech used a Cisco chassis with the 400G QSFP-DD capable line cards over a third-party line system, with eight ROADMs, a typical ‘alien wave’ deployment for the Cisco Routed Optical Network. The routers were upgraded with the Bright 400G ZR+ QSFP-DD optics at both ends. The speed of the deployment was done within a few hours. This model negates a significant amount of physical hardware components, helping to reduce the carbon emissions associated with manufacturing the equipment.

The long-haul route used for this trial in the production network was from Paris to Clermont-Ferrand to Lyon, and back to Paris over mixed fiber. Sipartech has been deploying its own fiber and optical transmission networks in France and Europe since 2008, interconnecting major data centers to ensure high-quality services.

Following the trial’s success, Sipartech will use the Bright 400G ZR+ QSFP-DD high-power module to roll out 400G transponder-free services across its network footprint to connect more international businesses and ensure quality connections.

“With the interoperability of Cisco’s equipment, we can deploy our next generation 400G+ services with speed, simplicity, and flexibility to meet our customers’ needs, while optimizing energy expenditure and our carbon footprint as part of our global strategy,” said Julien Santina, Sipartech CEO.

Arelion Takes Next Step in Converging its IP and Optical Networking Layers
Arelion (formerly Telia Carrier) announced late last year that it was the first network operator to successfully demonstrate 400G coherent connections between Cisco 8000 and NCS 5700 router platforms over third-party open line system using Bright 400ZR+ QSFP-DD modules supporting high transmit power. On a live fiber route with existing ROADM infrastructure between Hamburg and Copenhagen, Arelion successfully leveraged the Bright 400ZR+ QSFP-DD between Cisco 8000 and NCS 5700 router platforms. The trial demonstrated the seamless integration of Routed Optical Networking with DWDM transponders carrying wavelength services.

“Multi-layer architecture has always been challenging to scale and operate due to decades of accumulated complexity. With this latest trial, Arelion demonstrated the possibility to simplify conversion and interoperability, bringing us closer to Routed Optical Networking that evolves cost structures, scalability and efficiency,” said Dariusz Solowiej, VP Network Technology & Customer Operations at Arelion. “400G coherent pluggables will help our customers secure high-performance connectivity at the lowest cost and help us grow our networks in scale as we continue to connect the world.”

Vodafone Turkey Provides Faster and More Reliable Services
Vodafone Turkey was the first operator in Turkey to test 400G speeds with multiple suppliers and network layers. In a trial conducted using the Bright 400ZR+ QSFP-DD modules and Cisco routers, a speed of 400G was achieved with optical routing between Vodafone’s data centers in Tuzla and Esenyurt.  According to Vodafone, this technology will enable them to provide faster and highly reliable services to its corporate and individual customers. It will also support the fight against global warming and climate change by increasing energy efficiency and reducing its carbon footprint.

Brightening ROADM Networks
With an optical transmitter power at least ten times greater than 400ZR, the Bright 400ZR+ QSFP-DD coherent module expands the applications that can be addressed by 400G coherent pluggable modules to include brownfield and greenfield metro/regional networks with reconfigurable optical add-drop multiplexer (ROADM) nodes. To learn more about the expanding use cases read this blog article.

For more information on the Bright 400ZR+ module or to discuss how any of Acacia’s 400G pluggables can meet the needs of your network, contact us.