A Learning Life-Cycle to Speed-up Autonomic Optical Transmission and Networking Adoption

Autonomic Optical Transmission and Networking requires from Machine Learning (ML) models to be trained with large datasets. However, the availability of enough real data to produce accurate ML models is rarely ensured since new optical equipment, techniques, etc., are continuously being deployed in the network. Although an option is to ...

Artificial Intelligence with Machine Learning for Knowledge-Driven Future Wireless Networks: Challenges and Opportunities

In this paper, we discuss the challenges and opportunities to embrace artificial intelligence (AI) era in the design of wireless networks. We aim to provide readers with motivation and general methodology for adoption of AI in the context of next-generation networks. First, we discuss the rise of network intelligence and ...

Applications of Asymptotic Functions in Wireless Networks

Many wireless technologies have greatly benefited from developments in nonlinear analysis, and in particular in the field of convex analysis. A key concept that has made convex and nonconvex analysis an important tool in science and engineering is the notion of asymptotic function, which is often omitted in many studies ...

pH dependent voltammetry of iridium oxide films.

We report studies of Anodic Iridium Oxide Films (AIROF's) and Sputtered Iridium Oxide Films (SIROF's) by voltammetric analysis and open circuit pH response. The voltage and pH dependent double injection of ions and electrons into the films is described in terms of a model of an equilibrium change in electronic ...

Channelled-substrate buried heterostructure InGaAsP/InP lasers with vapor phase epitaxial base structure and liquid phase epitaxial regrowth.

Channelled-substrate buried heterostructure lasers have been fabricated with vapor phase epitaxial grown base structures and liquid phase epitaxial regrowth. These devices have low threshold currents (14 mA minimum, median 19 mA), exhibit a pulsed threshold current temperature dependence with a characteristic temperature of 55 K, and operate CW up to ...

A packet- and circuit-switched communications exchange.

We present a design concept for a communications exchange based on packetized time-division multiplexing. It will support packet-switching of data and circuit-switching of real-time signals, with a wide range of possible bit rate. Key components of the exchange are a central controller and two unidirectional bus loops with attached access ...

Reliability of InGaAs photodiodes of SL applications.

In this paper, we describe a comprehensive reliability program which is aimed at asessing and assuring the reliability of InGaAs photodiodes. A major portion of this work has involved device operation at overstress conditions. Results to date indicate that for receiver photodiodes a design exists which is predicted to meet ...

Oxygen inhibition of acrylate photopolymerization.

When photocurable acrylate materials are exposed to ultraviolet light of sufficiently low intensity, as for example with a collimated imaging lamp, the surface of the film remains essentially uncured well after the bulk of the film has polymerized to a significant extent. This lack of surface cure is due to ...

Wavelength conversion with excimer laser.

Harmonic generation was studied using a high powered, ultrashort pulse KrF excimer laser. Third, fifth, and seventh harmonic outputs were observed at 82.8 nm, 49.7 nm, and 35.5 nm. The nonlinear interaction took place at the intersection of the laser focus with a pulsed, supersonic gas jet expansion.

Evolution towards Telco-Cloud: Reflections on Dimensioning, Availability and Operability

There are multiple drivers of moving away from physical implementation of telecommunication network elements towards software (SW) only deployments in all IP networks. One of the major motivations is the possibility to use commercial IT hardware as platform, due to cost efficiency and the common required experience for HW operation ...

Significant Performance Advantage of Electroabsorption Modulator Integrated Distributed Feedback Laser (EML) Transmitter in Transporting Multi-carriers QAM Signals

We find that for transporting quadrature amplitude modulated (QAM) RF sub-carriers in suboctave frequency range, electroabsorption modulator integrated distributed feedback lasers (EMLs) can be modulated with significantly higher (2.5 times) modulation index without any in- band signal distortion as compared to the directly modulated and commercially available externally modulated DFB ...