CMOS Photonic Microwave Filters for UWB Applications

  • A. Pomerene
  • Chen Y.
  • D. Carothers
  • Gill D.
  • J. Beattie
  • J. Liu
  • J. Michel
  • L.C. Kimerling
  • M. Beals
  • Patel S.
  • Rasras M.
  • Tu K.
  • White A.

CMOS electronic photonic integrated circuit provides an important technology for producing ultra wide band signal processors with low cost and high level of integration. Recent developments of CMOS based photonic devices have shown promising results. In this paper we will review and present the RF performances of widely tunable microwave ...

Intradyne Receivers Using FPGA Processing

  • Chen Y.
  • Kaneda N.
  • Leven A.

FPGA-based intradyne real-time receivers have received increasing attention because of ease of implementation. In this paper, we will review the progress that has been made over the last couple of years.

Data Encoding on THz Signals for Communication and Sensing

  • A. Sinyukov
  • Giles R.
  • H. Lim
  • J. Federici
  • Moeller L.
  • Xie C.

We demonstrate and analyze data modulation of THz signals in the one Mb/s range. THz pulse trains are phase and amplitude encoded with pseudo random binary data, transmitted over a short distance, and detected. Different modulation formats are generated. Bit error measurements characterize the communication channel. We estimate from experimental ...

The 0.7 Structure in Cleaved Edge Overgrowth Wires

  • Baldwin K.
  • Pfeiffer L.
  • R. De Picciotto
  • West K.

We study the conductance through long and ultra-clean one-dimensional conductors and find a conductance anomaly at low charge densities – similar to the so-called 0.7 structure found in short constrictions. Our wires, afforded by the cleaved edge overgrowth technique, allow a quantitative study of this phenomenon in long wires. We ...

Clearmeida: Proactive Content Rate Selection for Enhanced Streaming Media Quality

  • Balachandran K.
  • Calin D.
  • Kim E.
  • Rege K.

Streaming media services over wireless networks often exhibit poor quality because of the limitation of the end- to-end feedback they typically rely on. In a recent paper [1], Clearmedia, a novel, signaling-proxy-based architecture, was proposed to overcome many of these limitations and was shown to have the potential to realize ...

ISI Mitigation Capability of MLSE Receivers

  • Essiambre R.
  • J.M. Gene
  • M. Rubsamen
  • Winzer P.

We explain why maximum likelihood sequence estimation (MLSE) receivers for direct-detection optical communication systems do not achieve the single-pulse performance of threshold receivers, in which there is no inter-symbol interference (ISI). For this purpose, we propose a simple and intuitive model to approximate the performance of MLSE receivers under the ...

Approximation Algorithm for Scheduling Real_time Multicast Flows in Wireless LANs

  • Bejerano Y.
  • D. Lee
  • P. Sinha
  • Zhang Y.

In recent years, numerous large-scale Wireless LANs (WLAN) have been deployed all over the world. However, the shortage of non-interfering channels makes it a challenge for WLANs to efficiently support real-time multicast services. In this paper, we study the problem of efficient scheduling of real- time multicast flows. For mitigating ...

Application of Generalized Linear Models for Optimizing Production Stress Testing

  • Bahman Honari
  • John Donovan
  • Joyce T.
  • Simon Wilson

This paper uses Generalized Linear Modeling (GLM) to investigate the effects of the production and EST test variables on the population under test. Both the number of units rejected and the time to failure can be modeled as a regression function of covariates representative of the test environment. The field ...

Transmission in Optically Transparent Core Networks

  • Fishman D.
  • Kao Y.
  • Liu X.
  • Sethumadhavan C.

Optical fiber transmission systems have become critical in facilitating the rabid growth in high-speed service in the consumer and commercial markets. It is apparent that as higher speed services, such as IPTV, become available there will be even greater demand for capacity in the distribution and core transport their networks. ...

Multiplexing and DQPSK Precoding of 10.7 Gb/s Client Signals to 107 Gb/s Using FPGA

  • Adamiecki A.
  • C. Woodworth
  • Corteselli S.
  • Raybon G.
  • Song H.
  • Winzer P.

We implemented a real-time DQPSK precoder for 107-Gb/s data, together with a high- speed channel alignment scheme and the required rate adaptation from 10.7 Gb/s to 13.375 Gb/s, on a Xilinx Virtex II Pro X FPGA.

Transparent Path Length Optimized Optical Monitor Placement in Transparent Mesh Networks

  • A. Ferguson
  • B. O'Sullivan
  • Kilper D.

The placement of optical monitors in transparent networks is optimized for maximum transparent path length, which we study over a number of different topologies and traffic patterns

Suppression of XPM Penalty on 40-Gb/s DQPSK Resulting from 10-Gb/s OOK Channels by Dispersion Management

  • Liu X.
  • S. Chandrasekhar

We analytically study the cross-phase-modulation (XPM) impact on 40-Gb/s DQPSK from 10Gb/s OOK channels, revealing it dependence on dispersion map and channel plan, and showing the suppression of the XPM-induced penalty via proper dispersion management.

Dynamic Performance Evaluation of Optical Polarization Mode Dispersion Compensators and Electronic Equalizers Including Forward Error Correction

  • Herbert Haunstein
  • Sethumadhavan C.
  • Werner D.
  • Xie C.

A method to test the dynamic performance of polarization mode dispersion (PMD) compensators (PMDCs) is presented. The dynamic performance of an optical PMDC combined with electronic equalizers is measured before and after forward error correction.

Reliability of IMS Architecture

  • Mendiratta V.
  • Pant H.

The IP Multimedia Subsystem (IMS) enables an access-agnostic Next generation Network (NGN) that integrates wireless, wireline and internet technologies. IMS provides for real-time voice and data services over a packet-switched domain via Session Initiation Protocol (SIP) infrastructure. It also offers a cost-effective platform for the creation and deployment of IP-based ...

Transmission of 107-Gb/s DQPSK over Verizon 504-km Commercial LambdaXtreme(R) Transport System

  • Adamiecki A.
  • B. Basch
  • C. Paquet
  • Carenza A.
  • Denkin N.
  • Doerr C.
  • Duelk M.
  • Fishman D.
  • G. Lyons
  • G. Wellbrock
  • Gnauck A.
  • J. Gatewood
  • K. Higuma
  • Kissell T.
  • P. Hofmann
  • Raybon G.
  • T. Fisk
  • T. Kawanishi
  • T.J. Xia
  • W. Kluge
  • W. Lee
  • Winzer P.
  • Y. Painchaud

A 107-Gb/s field trial was conducted on a traffic carrying long-haul LambdaXtreme(R) transport platform over an active 504-km Verizon route in Florida thus proving upgradeability to 100G of the Alcatel-Lucent 50-GHz spaced ULH DWDM system.

Experimental investigation of system impairments in polarization multiplexed 107-Gb/s RZ-DQPSK

  • Liu X.
  • Sethumadhavan C.

Several types of impairments manifested in polarization-multipled 107-Gb/s RZ- DQPSK are experimentally investigated. Comparisons are made between symbol-interleaved and symbol-aligned generation for impairments under right optical filtering, PDL/PDG, PMD and fiber nonlinearities.

Fault Diagnosis in IP Networks via Multicast Probing: Noisy Measurements

  • Akyamac A.
  • Nagarajan R.
  • Rege K.

In this paper, we address network fault diagnosis using multicast-based probing. The problem is inspired by and relevant to multicast-based IPTV services being heavily deployed by telecom operators around the world. Specifically, we introduce a disjunctive fault model for multicast-based probing wherein a receiver probe records a faulty measurement if ...

"Nanonails" - a Simple Geometrical Approach to Electrically Tunable "Superhydrophobic" Surfaces

  • A. Ahuja
  • A. Sidorenko
  • E.J. Lobaton
  • J.A. Taylor
  • Kolodner P.
  • Salamon T.
  • T. Kroupenkine
  • V. Lifton

In this work, dynamically-tunable, superlyophobic surfaces capable of undergoing a transition from profound superlyophobic behavior to almost complete wetting have been demonstrated for the first time. In the initial state, with no voltage applied, these surfaces exhibit contact angles as high as 150 degrees for a wide variety of liquids ...

Light and Motion: Cavities Learn to Adapt

  • Dinu M.

In a system of coupled resonant micr-cavities, optically-induced potentials can reach significant values. A new proposal devises a way to control these potentials, opening the door to a range of unique applications in nanophotonics.

IPTV Bandwidth Demands in Metropolitan Area Networks

  • Duelk M.
  • Hernandez-Valencia E.
  • Simsarian J.
  • Zirngibl M.

Slides on file.