Tag Archives: Industry


Software-Defined Metro Inter Data Center Network

Date:  Friday, September 18, 2015
Time:  11am Arizona Time / 2pm East Coast Time

Please register by clicking on the link: Webinar   or copy and pasting to your browser:  https://attendee.gotowebinar.com/register/775783887831714049
Webinar ID: 130-430-507


Dr. Payman Samadi
Post-doctoral Research Scientist
Columbia University

Payman Samadi received his Ph.D. degree in photonics and telecommunications from McGill University, Montreal, QC, Canada in 2012.  He was a product manager at Optiwave Systems Inc. leading optical system simulation software tools.  He is currently a post-doctoral research scientist at the lightwave research laboratories of Columbia University, New York, NY, USA.  His research interests include network architecture, software-defined networking and optical interconnects for applications in data centers and distributed computing.


The rise of cloud computing and big data has enormously increased the deployment of data centers.  Majority of the data centers are small to mid-sized, generally located in metro-scale distances and are actively communicating for services such as data replication, Virtual Machine (VM) migration, backup, load balancing or fault/disaster recovery.  This work presents a software-defined optical network to provide on-demand, bandwidth-selective and high throughout inter data center connectivity in metro-scale distances.

2015 9-18 Payman Samadi

CIAN Student Retreat & Innovation to Market Workshop

The CIAN Student Retreat and the Innovation to Market Workshop are happening January 11-13, 2015 at the University of California San Diego.

RSVP here

You must RSVP to be counted for meals and space.
(UCSD students MUST RSVP to be counted for food and space.)

Additional information about hotels & schedule is shown below.

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Make your hotel reservations here. To receive the discounted rate you must reserve your room BEFORE December 15th.

Hotel reservations will be offered for the reduced rate of $139 until Dec. 15th (afterwards they will rise in price).

The basic schedule is below. See the detailed agenda here.

11-Jan 2:00pm – 8:00pm Students arrive. Team Activity (Birch Aquarium) followed by dinner (Eureka!).
12-Jan 8:00am – 8:00pm Innovation to Market Workshop (see agenda for details)
13-Jan 8:00am – 12:00pm Innovation to Market Workshop (see agenda for details)
12:00pm – 1:00pm Lunch
1:00am – 3:00pm Intellectual Property – Dave Gibbons
3:00pm – 5:00pm How to write a good scientific paper – Chris Mack

Teachers in Industry Opportunity

Teachers in Industry is the innovative business-education partnership that places experienced classroom teachers in your workforce during the summer. Businesses gain from the professionalism and expertise of a science, technology, engineering or math (STEM) teacher. Teachers take their real-world industry experience back into the classroom to more effectively prepare students to enter the future workforce. The Teachers in Industry program is the best long term investment in the development of future scientists, technologists, engineers and mathematicians essential to the 21st century workforce.
Teachers in Industry, formerly known as the MASTER-IP Program, was established in 2009 by the University of Arizona College of Education, Tucson Values Teachers, Science Foundation Arizona and Raytheon Missile Systems. Continue reading


A team of students from the University of Arizona, Columbia University, the University of California, Los Angeles, the University of Southern California, and Cornell University completed a test bed insertion and demonstration of the CIAN Box in the TOAN test bed during the May NSF site review. The configuration is shown schematically in Figure 1.

Figure 1. Credit: CIAN Box Team. Schematic of CIAN Box test bed insertion and associated networking architecture. DE = Distance Emulation, CDC = Colorless, Directionless, Contentionless, WSS = Wavelength Selectable Switch, DLI = Delay Line Interferometer, OSNR = Optical Signal-to-Noise Ratio, TiSER = Time Stretched Enhanced Recorder – used for quality of service measurement, OFDM = Orthogonal Frequency-Division Multiplexing, DP-QPSK = Dual-Polarization Quadrature Phase Shift Keying, OOK = On/Off Keyed

The distance emulators are designed to implement a variety of network impairments as shown in Figure 2.  Various impairments, singly and in combination, were added to the signals and the quality of service (QOS) was monitored.  If the QOS fell below the desired level, the signal was switched onto a different channel with a potentially different encoding scheme.  After many late nights and long weekends the assembled system is shown in Figure 3.  A picture of the implementation team is shown in Figure 4.  Additional information can be found on the CIAN website.

Figure 2. Credit: CIAN Box Team.  Description of the different impairments that can be added to the system.  SMF = Single Mode Fiber, DCF = Dispersion-Compensating Fiber, PM = Polarization Maintaining, PDL = Polarization Dependent Loss, EDFA = Erbium Doped Fiber Amplifier, ROADM = Re-configurable Optical Add/Drop Multiplexer, SPM = Self Phase Modulation.

Figure 3.  CIAN Box Test Bed insertion

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