Pluggables: Their role in coherent technology evolution
By Patricia Bower – In the optical networking industry, pluggable client optical modules are a dominant trend for very short links within buildings and campus networks. Market economics that have driven the proliferation of these pluggables include factors such as simplicity, interoperability and volume-driven cost. And in the domain of short-reach (sub-10km), point-to-point fiber optic connections, the advantages listed above for using small form-factor, pluggable modules shine through.
This is particularly so in the case where transport of high-speed Ethernet client signals is the primary requirement. Connectivity within and between data centers has grown at a very rapid rate over the last few years, both from the perspective of transmission speed and number of connections. The use of optical signaling to transport these high-speed Ethernet signals has proven to be very efficient.
The optical networking industry has a well-established and large ecosystem of vendors bringing small form-factor client modules to market. Many of these are supported by MSAs (Multi-Source Agreements) which can be one of two types; those that define optical transmission specifications and those that define mechanical forms.
More recently, the data rates supported by pluggable form factors have increased. The 100G Lambda MSA group, of which Ciena is a member, has exhibited live demonstrations of interoperable Ethernet modules from member companies. The 100G Lambda MSA specifies 100Gb/s over 2km and 10km of single-mode fiber (SMF), and 400 Gb/s links over 2km of SMF. These modules will be based on the use of PAM-4 coding to get to a data rate of 100Gbps per wavelength. more>
Posted in Broadband, Business, Communication industry, Economy, Education, Net, Product, Science, Technology
Tagged Business improvement, Ciena, Fiber optics, Internet, Skills, Technology
The Art of the Unnatural
By Brendan Seibel – When he was a kid, Jason DeMarte enjoyed visiting natural history museums to see the dioramas filled with taxidermy wildlife and carefully positioned plants.
As an adult, he determined that those scenes are intended more to capture the imagination than to document reality. And while the diorama designers’ motives may be pure, there is a darker side.
DeMarte saw a correlation between the museums’ “perfect, pristine snippets of nature” and product photography of the sort he’d done for Toys ’R’ Us to pay the bills while earning an MFA in photography. That experience of creating flawless images of merchandise exemplified photography’s role in cultivating consumer desire for false perfection through manipulation and good lighting.
“I started thinking about nature in a different way, as a commodity, as a way of packaging, promoting, and selling a commodifiable object,” DeMarte says.
The disconnect between manufactured perceptions of nature and the imperfect reality has been DeMarte’s artistic focus ever since. His work is a commentary on the artifice underpinning our concept of the world, as well as our constant desire for something “better.” more>
Posted in Business, Economy, Education, How to, Net, Technology
Tagged Adobe, Business improvement, Internet, Productivity, Skills, Technology
The implications behind service and content provider requirements for coherent optical solutions
By Helen Xenos – In 2007, I was asked to write a white paper about this really cool new “coherent technology” our team was working on and explain how the coherent receiver would completely revolutionize optical networks as we knew them. As I tried to get started, I quickly learned that the only source for content were the engineers actually working on the project – my efforts of scrolling through pages upon Google search pages netted zero information.
The evolving coherent optical networking landscape: a deep dive
In the end, I wrote the paper by transcribing what a dear co-worker and mentor, Michel Belanger, who was one of the designers, patiently explained to me (it took several hours). He made sure I understood the significance of coherent technology and how it would change the game in optical networks.
Fast forward a dozen years – there is no shortage of information pertaining to coherent technology, and there are about a dozen coherent module and system suppliers. Coherent optical systems have become the networking foundation that underpins the digital economy that we know today.
Network providers are ubiquitously deploying coherent to scale networks for capacity, reduce transport costs and provide a better end-user experience to their customers. In fact, they are now looking at expanding the role that coherent technology plays in the network and deploy it in space and power/optimized applications in addition to traditional infrastructure, submarine and data center interconnect (DCI) build-outs.
As coherent technology plays an increasingly critical role for successful network evolution, we must step back and ask ourselves:
- What do network providers need from their coherent solution partners to succeed?
- What are the implications of the divergent customer and networking requirements to the suppliers of the technology?
Posted in Broadband, Business, Communication industry, Economy, Education, History, How to, Net, Product, Science, Technology, Telecom industry
Tagged Broadband, Business, Business improvement, Ciena, Fiber optics, Internet, Technology
Why fulfilling airworthiness requirements means going digital
By Dave Chan and John Cunneen – Any organization that must consistently prove airworthiness requirements can relate to the frustrating tasks of locating and providing proof their products will perform in accordance with standards, rules and laws in a myriad of countries.
No more so is this appropriate than in the aerospace industry where everything is built on safety. Every rule, every design requirement has blood on it. These rules exist because someone was or can be hurt, a plane could crash, or any number of catastrophic incidents can occur.
This is why there are rigorous standards in place to ensure anything that can take off and land, from the smallest glider and helicopter to the largest commercial airliner and military jet, must receive and maintain an airworthiness certificate. The process of aircraft certification can be daunting simply because many organizations don’t take proactive approaches in the development phase through delivery to make it so. more>
Posted in Business, Economic development, Economy, Education, How to, Net, Product, Science, Technology, Transportation
Tagged Business improvement, Internet, Manufacturing, PLM, Productivity, Siemens, Technology
4 critical requirements for the next-gen photonic layer
By Paulina Gomez – Today’s market dynamics are making it harder for network providers to effectively compete in an environment where revenue per bit is declining, and network bandwidth requirements are exploding. In the face of these business challenges, network providers are realizing they must evolve and transform their networks towards a more programmable infrastructure that can scale and respond on demand, to meet changing customer expectations and unpredictable traffic requirements.
While coherent optics are a critical element in enabling a programmable optical infrastructure, alone they are not enough to fulfill operators’ requirements for successful network transformation.
So what else is needed?
The photonic layer is the foundation of this programmable infrastructure, leveraging the latest coherent optical technology to deliver maximum scale at the lowest cost per bit. When examining the requirements of metro and long-haul infrastructure applications, including global data center interconnect (DCI) networks, there is a growing need for an agile, resilient and intelligent photonic layer.
This Reconfigurable Add-Drop Multiplexer (ROADM)-based optical foundation leverages flexible, instrumented photonics and Layer 0 software control to scale the network for maximum capacity at the lowest space, power, and cost per bit. more>
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Tagged Broadband, Business, Business improvement, Ciena, Fiber optics, Industrial economy, Internet, Technology