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Is your network “open” for business?

By Casimer DeCusatis, Ph.D. | Posted: 4 November 2014

The optical networking community seems to be embracing open source software in a big way. While industry leading conferences like OFC have always been strong advocates for interoperability and a standards-based approach to networking, this has traditionally been a hardware-focused community.

Given the increasing importance of software in network control planes, data centers, and telecommunication systems, it’s not surprising that OFC will also include a greater emphasis on open source code. This means a faster development cycle compared with the underlying hardware, and more opportunities for innovation as the source code for network control planes becomes accessible to the global programming community.

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Getting Ready for the Internet of Things

By Casimer DeCusatis | Posted: 26 September 2014

Some funny things happened while the Internet was minding its own business and incessantly growing into every corner of our lives.  Not that we didn’t see it coming.  When I was giving presentations at optics conferences in the late 1990s, I recall a quote from a major industry trade magazine predicting that the data center of the future would be “software and a network”. As the Internet of Things (IoT) begins to take shape, this prediction is coming true in ways that nobody ever imagined.  And optical networking is positioned to play a major role in the IoT.

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Top 4 things that make a good conference and why you should submit a paper to OFC

By Casimer DeCusatis | Posted: 22 July 2014

Despite all the advances in telepresence, video distribution, and webinars, technical conferences remain one of the fundamental ways that our profession shares information.  In fact, the value of a face-to-face conference has become even more apparent in this age of virtual, always-on communication.

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40G to 100G Ethernet: By The Numbers

By Casimer DeCusatis | Posted: 25 June 2014

Is it possible to think of something without knowing a word to describe it ?  According to some studies, humans understand the concept of numbers and counting before knowing the words for those numbers.  Perhaps that means that this month’s blog will be easier for everyone to understand, since I’ve found that it’s hard to describe the emerging market for 40 – 100 Gbit/s optical links without using an awful lot of numbers (I needed to use 65 numbers in this post alone, including that last one).  

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Confessions of an Optics Hipster

By Casimer DeCusatis | Posted: 24 April 2014

What’s the big deal with all this buzz about SDN?

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OFC Day 4 – Wednesday, March 12 – What a world (of photonics)…

By Casimer DeCusatis Ph.D | Posted: 13 March 2014

Welcome back to my daily blog about OFC 2014. Today we’ll be taking a look at the wide world of photonics represented at OFC, from service providers and cloud computing to optoelectronic packaging and software for dynamic network provisioning.

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OFC Day 3 - Tuesday, March 11 - Plenaries, Posters, & Exhibits, oh my!

By Casimer DeCusatis Ph.D | Posted: 12 March 2014

Another full day of events at OFC…today I’ll be checking out the plenary sessions, wandering through the posters & vendor exhibits, and taking in a few interactive sessions as well.

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Coherent optical OFDM: What is it good for?

By Vivian (Xi) Chen | Posted: 11 March 2014

OFDM, short for orthogonal frequency-division multiplexing, is a method of encoding data on multiple carrier frequencies. And the coherent optical OFDM (CO-OFDM) is OFDM data that is being modulated to light frequency and being detected in coherent manner. Though OFDM has been standardized in wireless communication (e.g. IEEE 802.11) for a long time, the CO-OFDM was proposed around 2008 and is a relatively new concept for optical fiber transmission.

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What are the possible ways to combat fiber nonlinearity?

By Vivian (Xi) Chen | Posted: 11 March 2014

Fiber nonlinearity is and important concerns for large capacity fiber transmission. When we try to increase system capacity, we occupy a wide optical bandwidth and use a high order modulation format, and thus need a high signal-to-noise ratio (SNR) to keep a certain level of bit-error-rate (BER). Consequently, more and more power is launched into the fiber. It is then that the fiber nonlinear effect becomes a significant factor that degrades signal quality.

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OFC Day 2 - Monday, March 10 - Follow the 100G road

By Casimer DeCusatis Ph.D | Posted: 11 March 2014

OFC 2014 is in full swing by now, and as usual I’m feeling a bit overwhelmed by the sheer number of events running in parallel. It’s just not possible for one person to cover the entire conference, but I think you’ll find the highlights that I’ve selected for today’s blog to be both interesting and controversial.

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The views expressed in this blog are those of the authors and do not necessarily reflect the views or policies of The Optical Fiber Communication Conference and Exposition (OFC)  or its sponsors.

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