Tag Archives: elluminate

CIAN Student Webinar Talk Series – Atiyah Ahsan, Columbia University

Advanced Optical Performance Monitoring for Next-Generation Dynamic Optical Networks

Date: Friday, September 26, 2014
Time: 1:30pm Pacific Time

Login to the Webinar.*


Ever-growing demand for speed and bandwidth and increasing energy consumption in today’s networks are driving the need for intelligent next-generation networking architectures that can overcome fundamental spectral and energy limitations. Metro-only internet traffic in particular is experiencing unprecedented growth and is projected to exceed long-haul traffic by 40% in 2017; current static peak capacity provisioned networks are ill-equipped to address such “bursty” traffic patterns. Dynamic optical networking, where bandwidth is allocated on-demand in the physical layer in response to changing traffic demands and network conditions, is a promising solution to address these challenges. Rapidly changing network configurations, however, cause unpredictable transmission impairments and result in network instability. Real-time awareness of the state of the physical layer is necessary for managing signal quality and reliability in a dynamic network and can be achieved through ubiquitous distribution of advanced optical performance monitors in a network.

Delay-line-interferometer (DLI) based optical-signal-to-noise (OSNR) monitor is a good candidate for ubiquitous monitoring as it is cost-effective and supports multiple advanced modulation formats. Its greatest drawback is that its measurements are modulation-format and bit-rate dependent, rendering it ineffective in future networks operating in a mixed line rate and modulation formats framework. In our recent work we demonstrated that by using pilot-tones, modulation-format and bit-rate awareness is realized in the monitor. Autonomous signal quality decisions, even in presence of modulation-dependent cross-talk, is achieved facilitating scalable cross-layer impairment aware routing.



Atiyah Ahsan
Ph.D. Candidate
CIAN Graduate Student
Columbia University

Atiyah Ahsan received the B.Sc. degree in electrical engineering (summa cum laude, thesis with highest honors) from Tufts University, Boston and the M.Sc. degree from Columbia University, New York in 2010 and 2012 respectively. From May 2012 to January 2013, she worked as a student collaborator on a project led by Dr. Daniel Kilper at Bell Labs Alcatel Lucent. She is currently a Ph.D. candidate at the Columbia University Lightwave Research Laboratory under the advisement of Professor Keren Bergman. Her research is focused on advanced optical performance monitoring techniques and cross-layer architectures for next-generation dynamic access and metro-networks.

*link will not work until date & time of webinar

If you missed Atiyah Ahsan’s talk, see it below!

Friday Speaker Series 2013 Episode 2 – Education, Dr. Dan Kilper

To participate in this week’s Elluminate Video Session click below.

September 27th, 2013 at 4pm ET / 3pm CT / 1pm MT

Login to Elluminate to listen to the presentation. You DO NOT need a camera, just a computer for this. If you do not have a microphone, there is a chat option to ask any questions. Please login at the following link and when prompted, type YOUR NAME AND UNIVERSITY/COMPANY

Join Elluminate Video Session

This week CIAN hosts University of Arizona professor, Dr. Dan Kilper, speaking on the topic of the importance of the awareness of sustainability. The engineer of 2020 must have a deep understanding of sustainability since it allows development of technology for energy efficiency and low carbon impact.

kilperDr. Daniel Kilper is a professional working in telecommunications research with more than 18 years experience in both industry and academia. He is recognized for seminal contributions in two areas: optical performance monitoring and energy efficient networks; and has been a pioneer in the area of dynamic and transparent optical networks. His work has been recognized with the Bell Labs President’s Gold Medal Award. He holds six patents and authored three book chapters and more than one hundred peer-reviewed publications.

Friday Speaker Series 2013 Episode 1 – Student Research, Shiva Shahin

Shiva Shahin speaks about her research on the “Novel Method of N2 Measurement of Organic Dyes.” This presentation is a portion of the Center for Integrated Access Networks (CIAN) program. To learn more about CIAN visit http://www.cian-erc.org.