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From: FUBHO2/27/2021 3:37:02 PM
   of 4343
 
WINDSTREAM DID A TRIAL OF ZR+ AT 1000KM. THEY HAVE AN ARTICLE ON LIGHTWAVEONLINE.COM. SPECTRAL EFFICIENCY IS 50% LOWER THAN A QUALITY DSP AT THAT LENGTH, MAYBE EVEN LOWER.

I HOPE THIS HUAWEI TRIAL SPEAKS TO THEIR CAPABILITIES, BECAUSE IT IS VERY UNIMPRESSIVE.

Huawei Helps Telefonica Reinforce Its Network with 600G and 800G Signal Transmission
Feb 20, 2021


[Madrid, Spain, February 20, 2021] Huawei and Telefonica (Spain) have completed a pilot on wavelength division multiplexing (WDM) photonic meshes that support Telefonica's Fusion IP Network. This pilot aims to strengthen the Fusion Network, by delivering greater quality and capacity in the face of emerging 5G and other new services.

The high single-wavelength 600G and 800G transmission speeds that Telefonica has achieved using Huawei OSN 9800 devices on the photonic mesh network in Madrid (spanning 47 km) is a prime example of this.

Juan José Marfil, the director of transport and IP connectivity at Telefonica, pointed out: "These pilots on the photonic meshes, in which signals are transmitted over optical channels without the need to switch to the electrical domain, are important milestones that build on the 400G speed that was achieved in 2019, also in Madrid. The goal is to begin implementing the 400G speed this year and subsequently optimize the Fusion IP Network to meet the needs for higher capacity and speed in view of the exponential growth of both connected devices and data transmission."

Enhancing transmission speed is key to the development strategy of Telefonica. This is because these networks fundamentally carry all of the company's services, whether it is for residential customers or large companies, and must also adapt to support the yearly 30% increase in traffic.

The use of 800G channels achieves full capacity for short-distance transmission. An example of this is using these new channels to transmit the equivalent of 500 one-hour HD quality movies over a pair of optical fibers in just a second.

Moreover, Telefonica will leverage the sustainability of its fast transmission technology to reduce energy consumption by 40% to 60% and become an industry pioneer for environmental sustainability.

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From: FUBHO3/3/2021 9:34:25 AM
   of 4343
 
Virgin Media Trials Infinera’s Cutting Edge Multi-gigabit Network Technology


New full fiber technology could support a scaled rollout of multi-gigabit speeds to Virgin Media’s customers in the future

SAN JOSE, Calif., March 03, 2021 (GLOBE NEWSWIRE) -- Infinera (NASDAQ: INFN) announced today that Virgin Media has trialed innovative network technology which provides new ways to roll out multi-gigabit speeds to consumers and businesses.

The trial, delivered on the operator’s network in Reading, UK, saw Virgin Media install prototype Infinera XR optics technology in its network.
The new equipment plugs into the existing network and can send and receive data at much higher speeds than was previously possible – reaching transfer rates of up to 400Gbps in a single fiber.




In 2019, Virgin Media trialed 10Gbps symmetric full fiber home broadband technology in Papworth, Cambridgeshire. This new trial goes a step beyond that, demonstrating that the operator’s passive fiber optic access network (PON) – which provides multiple premises with full fiber connections – could deliver 400Gbps symmetrical services by making use of the latest technology.

Fiber optic networks transmit data from one point to another through a series of electrical switches and optical transceivers. These optical transceivers control where the information is sent and at what speed, ultimately determining how fast data can be sent from one point to another.

In the trial, the traditional network transceivers were replaced with cutting-edge technology which split a single fiber optic cable into many connections, all taking a share of the huge capacity. This means a single fiber could be used to provide multi-gigabit speeds to many customers at the same time.

By using standard passive optical network technology, the transceivers can support higher speed data transfers and can be remotely upgraded and configured. This allows the network operator to make changes quickly and easily, paving the way for simple upgrades to consumer services in future.

This new technology could help support the rapidly growing demand for data which is being driven by high-quality video streaming, remote working, and immersive entertainment, as well as the need to carry 5G traffic to and from mobile phone masts as well as other emerging bandwidth intensive technologies.

Jeanie York, Chief Technology and Information Officer, Virgin Media, said: “Our next-generation network already offers gigabit connectivity to more than 7 million homes, but with data use and demand for hyperfast speeds surging, we’re continually investing in our network to prepare for whatever the future brings.

“Innovations like XR optics ensure our customers continue to benefit from the UK’s fastest widely available speeds, pave the way for future network upgrades and help support the rollout of multi-gigabit broadband and mobile services.”

“The trial with Virgin Media provides a solid proof point that Infinera’s XR optics technology can be seamlessly applied to existing networks,” said Dave Welch, Infinera Chief Innovation Officer and Co-founder. “This represents a radical shift in the way networks can be built, promising a more flexible and sustainable way to meet the ever increasing need to transmit more data at higher speeds.”

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From: FUBHO3/3/2021 1:54:52 PM
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XR OPTICS READY TO ROLL...


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From: FUBHO3/4/2021 3:36:57 PM
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CIEN HAS SHIPPED 7,500 800G PORTS, TO 79 CUSTOMERS. THAT DOESN'T SOUND LIKE A LOT OF UNITS TO ME...

--------------------------------------

Rod Hall -- Goldman Sachs -- Analyst

Okay. Thanks for that. And then on my follow-up, I wanted to just ask competitively. I know that Infinera has talked about a couple of 800 gig wins, you guys obviously have a whole lot more. I wonder -- are you seeing them in the market with 800 gig? Can you just talk a little bit about the 800-gig competitive environment as it stands right now?

Scott McFeely -- Senior Vice President, Global Products and Services

Yes, Rod, good morning. as we said in the press release, we're up to, I think, it was at the end of the quarter, 78, 79 customer wins. Since the end of the quarter, that's actually increased. By the way, 18, I think, of those 79 were brand-new logos to Ciena. So a lot of momentum there.

Last I checked, a few weeks ago, that equated to something like 7,500 units shipped to customers. So as far as I know, we are the only commercially available 800 gig solution in the marketplace, and you can see it in those statistics.

Rod Hall -- Goldman Sachs -- Analyst

Do you guys think that these are just lab deployments then that these guys are talking about?

Scott McFeely -- Senior Vice President, Global Products and Services

7,500 units, a lot of labs. So all the other competitors, I don't know. If you have to ask them. I should -- probably that's my only comment on that.

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From: FUBHO3/5/2021 1:12:03 PM
   of 4343
 
THIS SOUNDS MILDLY INFORMATIVE...

NeoPhotonics to Host Call to Discuss Optical Communications Trends and Technologies on March 10, 2021

Fri, March 5, 2021, 11:00 AM·2 min read

NeoPhotonics Corporation (NYSE: NPTN), a leading developer of silicon photonics and advanced hybrid photonic integrated circuit-based lasers, modules and subsystems for bandwidth-intensive, high speed communications networks, today announced management will host a conference call to discuss trends in optical communications and related technologies on Wednesday, March 10, 2021 at 11:00 am ET.

The session will focus on industry trends and on NeoPhotonics’ product and technology differentiation addressing important issues for the introduction and growth of 400Gbps Pluggable Modules for DCI to Long Haul Applications. That is, for 400ZR and Speed Over Distance, as distance or reach extends, the range of applications that will benefit from IP over DWDM architectures in optical networks increases. This webinar will showcase NeoPhotonics 400ZR and 400ZR+ solutions and illustrate the technologies required for these demanding applications.

The event will be hosted by:



Tim Jenks, Chairman and CEO
Ferris Lipscomb, Ph.D., VP of Marketing
Wupen Yuen, Ph.D., SVP and Chief Product Officer
Winston Way, Ph.D., CTO

To listen to the live webcast, please visit cts.businesswire.com. A replay of the event will be available approximately one hour following the event at cts.businesswire.com

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From: FUBHO3/6/2021 12:29:03 AM
   of 4343
 



Virgin Media tests Infinera’s XR optics on PON infrastructure
Stephen Hardy

lightwaveonline.com





Infinera (NASDAQ: INFN) has announced a second major trial of its point-to-multipoint XR optics technology in the UK. Following a demonstration with BT (see “BT models, lab trials Infinera’s XR optics”), the company has revealed a trial with Virgin Media that saw XR optics applied to a PON infrastructure in Reading, UK. The results indicated the ability to support symmetrical transmission rates as high as 400 Gbps over the fiber to the premises (FTTP) network, Infinera says.

The XR optics concept, introduced in the fall of 2019 and still in the prototype phase, leverages the ability to share the capacity of a single coherent port among multiple endpoints (see “Infinera unveils XR optics single-source coherent point-to-multipoint transmission technology”). As a PON infrastructure works along somewhat similar principles, XR optics would appear to be a natural fit for such networks.

Virgin Media has been willing to trial a variety of technologies to boost the capacity of its PONs; for example, the company trialed 10G PON in 2019 with ARRIS (now part of CommScope; see “Virgin Media trials 10G-EPON with ARRIS”). “Our next-generation network already offers gigabit connectivity to more than 7 million homes, but with data use and demand for hyperfast speeds surging, we’re continually investing in our network to prepare for whatever the future brings,” commented Jeanie York, chief technology and information officer at Virgin Media. “Innovations like XR optics ensure our customers continue to benefit from the UK’s fastest widely available speeds, pave the way for future network upgrades, and help support the rollout of multi-gigabit broadband and mobile services.”

“The trial with Virgin Media provides a solid proof point that Infinera’s XR optics technology can be seamlessly applied to existing networks,” added Dave Welch, Infinera’s chief innovation officer and co-founder. “This represents a radical shift in the way networks can be built, promising a more flexible and sustainable way to meet the ever increasing need to transmit more data at higher speeds.”

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From: SGJ3/11/2021 4:51:38 PM
2 Recommendations   of 4343
 
EllaLink Completes Marine Installation and Turns to Infinera for Network Lighting

finance.yahoo.com

Using ICE6-800g to light it. Lit the fuse today, up 7.34%. What investors have been waiting for.

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To: FUBHO who wrote (4311)3/30/2021 7:13:49 AM
From: FUBHO
   of 4343
 
Trends and Technology: 400G Pluggable Modules for DCI to Long Haul Applications

ir.neophotonics.com

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From: FUBHO4/3/2021 6:26:13 PM
   of 4343
 


infinera.com

An App for Network Navigation – Welcome to PCE - www.infinera.com


6-7 minutes





In times when customer satisfaction and business agility are critical to network operators, the ability to fulfill service requests fast, keep to service-level agreements, and accelerate revenue by quickly delivering new and more services is key.

But service fulfillment in an optical transport network – that is, the activation of new digital services that may also involve the planning and provisioning of a new wavelength – is not as simple and painless as we would like. Traditionally, this is a slow, costly, and error-prone process, involving a few iterations between:

  • The operator’s network planning and design team, which will define the service requirements
  • The network infrastructure vendor’s network planning services team, which will use an expert-only offline network planning tool to compute alternative routes
  • The operator’s network operations team, which will deploy the final service in the field
This approach doesn’t quite meet the needs of today’s network operations and dynamic traffic patterns, where adding or changing services effectively and in real time is increasingly relevant.

When looking for service path computation in a large transport network, we want quick response and we want to be able to define the path-finding criteria and ensure that the resulting path meets all service-level agreement parameters.

Additionally, we want to be able to find and provision optimal end-to-end routes across different equipment types and multiple technologies in a simple and seamless manner, a known limitation of most distributed control planes, where routing information across different network layers is not shared.

Hero to the rescue: the path computation element A path computation element (PCE, as defined in IETF RFC 4655) is the way to address our needs. A PCE is an application that utilizes abstracted network topology and connectivity to compute a constrained path between two endpoints.

This type of context-optimized path determination offers increased flexibility and effectiveness in service routing, as it considers not only user-defined weights and constraints such as latency, modulation format, link utilization, shared risk link groups, etc., but also live network conditions – pretty much like a Google Maps navigation app for the network.

By complementing the PCE application with a provisioning engine that automates configuration of the resources in the network, the outcome is exactly what we are looking for: simple, fast, and reliable service fulfillment.

But what about multi-domain path computation? In addition to the benefits above, a centralized PCE implementation offers the potential to consolidate multiple domains and network layers into a global network view, resulting in improved scalability and network-wide efficient resource usage.

Multi-domain path computation can be achieved with a hierarchical path computation element architecture. In this architecture, there is one parent PCE and multiple child PCEs, each responsible for a subdomain, as represented in Figure 1. All paths within a subdomain are computed by a child PCE, which has only information pertaining to its specific domain. The parent PCE maintains only high-level information about each subdomain but is fully knowledgeable of the connectivity between them. The parent PCE is able to perform centralized end-to-end path computation by orchestrating the subdomains, and it associates and coordinates the topology information and routing capabilities of the multiple child PCEs.



Figure 1: Hierarchical PCE

A service that reaches its destination Some requests for new digital services over an optical transport network will run against fully utilized wavelengths, requiring that new wavelengths be lit in the network. However, the transmission of a new wavelength along a chosen path is subject to optical impairments that need to be assessed ahead of provisioning.

That should not be an issue for a powerful PCE. A PCE should be capable of interfacing with an optical performance application that models transmission in the fiber layer and validates the optical feasibility of a path. In some cases, that optical validation may not even need the superior accuracy provided by a detailed optical transmission simulation – a summary of optical performance may be enough. For simplified operation, the PCE may simply store a set of feasible optical paths between each node pair, including the information on which wavelengths are valid for a given path and modulation format, previously checked by an offline planning tool.

It goes without saying that PCE and service provisioning applications can also be used as a basis for more complex automation tasks and network programming. One example is closed-loop automation processes, where events or patterns observed in the network trigger automated actions in the same network, such as service rerouting upon failure or in anticipation of it, increasing network availability. Choosing applications that provide support for open APIs ensures they can be smoothly integrated into any network operator’s software automation environment.

The value of an intelligent path computation element and service provisioning software application is crystal clear. Best-in-class PCE and service provisioning applications, such as Infinera’s Transcend path computation element and service provisioning application, offer benefits including:

  • Accelerated new service activation
  • Accelerated time to revenue
  • The elimination of operational errors
  • Reduced operational expense
  • Improved end-user experience
  • Maximized network utilization
And all this by simply enabling superior network navigation!


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To: FUBHO who wrote (4315)4/3/2021 6:29:19 PM
From: FUBHO
   of 4343
 

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