Ciena unveils WaveLogic 5: 800G and so much more
By Scott McFeely – Today is an exciting day at Ciena, as we have unveiled the next generation of our WaveLogic coherent technology – WaveLogic 5. Introducing the next member of our WaveLogic family is not something we take lightly, because as my friend and colleague Dino Diperna says, “If we aren’t pushing technology to the boundaries, then we’re not delivering the optimal solution for our customers.”
So it’s not surprising that Ciena is once again raising the bar in coherent optical technology by providing the scale, flexibility and intelligence that solidifies our position as a leader in optical networking and your trusted partner for building the Adaptive NetworkTM. And we aren’t just coasting on our past successes. With WaveLogic 5 we are introducing two new solutions that can deliver coherent technology however our customers need it – from integrated systems to pluggable form factors – addressing the complete set of technical and economic requirements they have across a range of network applications.
There is a lot to unpack in today’s announcement, so let’s start by addressing the 800-pound gorilla in the room…do network operators really need 800G?
The answer is a resounding YES.
Our customers are responsible for providing the foundation of society’s digital lifestyle, and that requires moving massive amounts of data around the world – at the speed of light. While these challenges are not new, they are becoming more acutely felt. The pressure to deliver new revenue opportunities while cost-effectively supporting increased traffic demands is forcing providers to evolve and transform their optical networks. more>
Posted in Broadband, Communication industry, Economic development, Economy, Education, How to, Net, Product, Science, Technology
Tagged Broadband, Business improvement, Ciena, Fiber optics, Internet, Technology
By Sarah Garfinkel – When considering the senses, we tend to think of sight and sound, taste, touch and smell. However, these are classified as exteroceptive senses, that is, they tell us something about the outside world. In contrast, interoception is a sense that informs us about our internal bodily sensations, such as the pounding of our heart, the flutter of butterflies in our stomach or feelings of hunger.
The brain represents, integrates and prioritizes interoceptive information from the internal body. These are communicated through a set of distinct neural and humeral (ie, blood-borne) pathways. This sensing of internal states of the body is part of the interplay between body and brain: it maintains homeostasis, the physiological stability necessary for survival; it provides key motivational drivers such as hunger and thirst; it explicitly represents bodily sensations, such as bladder distension.
But that is not all, and herein lies the beauty of interoception, as our feelings, thoughts and perceptions are also influenced by the dynamic interaction between body and brain.
The shaping of emotional experience through the body’s internal physiology has long been recognized. The American philosopher William James argued in 1892 that the mental aspects of emotion, the ‘feeling states’, are a product of physiology. He reversed our intuitive causality, arguing that the physiological changes themselves give rise to the emotional state: our heart does not pound because we are afraid; fear arises from our pounding heart. more>
Posted in Book review, Economy, Education, Healthcare, How to, Nature, Technology
Tagged body, Business improvement, Health, Mind, talk, world
Earth observation for weather prediction – solving the interference problem
By ITU News – “Today, several dozen satellites contribute to the accumulation of critical knowledge about the Earth’s system, enabling scientists to describe specific links between a major natural disturbance in the upper atmosphere, and changes in the weather thousands of miles away,” says Mario Maniewicz, Director of the ITU Radiocommunication Bureau.
“As accurate weather predictions need to start from the best possible estimate of the current state of the atmosphere, it is crucial that meteorologists have real-time, accurate global observations about what is happening in the Earth’s atmosphere over land and oceans. And for this, they rely on space sensing.”
Space sensing relies on the deployment of sensors to obtain data critical for Earth observation from space. Active sensors are radar systems on spaceborne platforms. They obtain data through the transmission and reception of radiowaves. Passive sensors, meanwhile, are very sensitive receivers that measure the electromagnetic energy emitted and scattered by the Earth, and the chemical constituents in the Earth’s atmosphere. They require protection from radio-frequency interference.
Spaceborne sensors measure the background natural radiative emission floor, therefore any man-made signal (e.g. communications, radars) that rises above this natural emission floor will likely interfere with the measurements. This interference can be tolerated only if its energy is well below the sensor sensitivity. more>
Posted in Broadband, Communication industry, EARTH WATCH, Economic development, Economy, Education, Energy & emissions, How to, Nature, Net, Science, Technology, Telecom industry
Tagged Business improvement, Earth, International Telecommunication Union, Internet, ITU, Satellite, Technology
When intellectual and moral arguments align, the global climate can change quickly. That’s what’s happening with the US tax debate.
By Atanas Pekanov and Miriam Rehm – Policy proposals by lawmakers in the United States have spurred a hotly contested debate on taxation among economists in recent weeks. The Democratic congresswoman Alexandria Ocasio-Cortez argued that the US needed to raise additional revenue by going back to marginal top-income tax rates of up to 70 per cent to fund social programs and a Green New Deal, while the Massachusetts senator Elizabeth Warren proposed a wealth tax of up to 3 per cent on the richest.
While opponents and some commentators have deemed such proposals radical or ideological, both are buttressed by economic research. Economists largely seem to agree on some basic facts: inequality within the US has been rising and the benefits of growth have accrued largely to the top 1 per cent, while the real incomes of what in America is called the middle class have stagnated over the past three decades.
There is also consensus that the progressivity of the income-tax system has been eroded in many countries since 1980 and that wealth is currently much more unequally distributed than income.
The recent economic debate has thus revolved around whether higher taxes on top incomes or for very wealthy people should be deployed to counteract these trends. American progressives argue that higher revenues are needed if the US aspires to become more like the role-model European welfare state, with more inclusive social systems and better public services, financed by top marginal income-tax rates of above 40 per cent (in most EU countries) and/or some form of wealth tax. While some have misrepresented these ideas, they would only burden very wealthy individuals. more>
Posted in Business, CONGRESS WATCH, Economic development, Economy, Education, History, How to, Leadership, Media, Net, Regulations
Tagged Business improvement, Capital, Government, Jobs, Leadership, Taxation
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