Mid-infrared light generation through four-wave mixing-based frequency down-conversion in a normal group velocity dispersion silicon waveguide is demonstrated. A telecom-wavelength signal is down-converted across more than 1.2 octaves using a pump at 2190 nm in a 1 cm-long waveguide. At the same time, a 13 dB on-chip parametric gain of the telecom signal is obtained.

Löıck Magnin, 2 Frédéric Magniez, Anthony Leverrier, and Nicolas J. Cerf 4 QuIC, École Polytechnique, CP 165, Université Libre de Bruxelles, 1050 Brussels, Belgium LRI, Univ Paris-Sud, CNRS; F-91405 Orsay, France Institut Telecom / Telecom ParisTech, CNRS LTCI, 46 rue Barrault, 75634 Paris Cedex 13, France Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Mas...

In the paper, we propose an information retrieval based (IR-based) Question Answering (QA) system to assist online customer service staffs respond users in the telecom domain. When user asks a question, the system retrieves a set of relevant answers and ranks them. Moreover, our system uses a novel reranker to enhance the ranking result of information retrieval. It employs the word2vec model to...

Historically, Telecom Networks were a Mixture of TDM/Circuit Switched and Packet/Datagram based and used techniques such as TDMoIP and IPoTDM for internetwork communication. Voice and Data Networks were separate. NGN was envisioned as a pathway towards a converged ALL-IP network capable to cater to Voice, Video and Data services. Around 2005, newer services such as SAN’s, NAS’s, CDN’s, WSNs, Lo...

Technological and economical development has forced companies in competitive markets, to change their strategic focus, as a result of which the Customer oriented organization is on the rise. In order to stay ahead of the competition, companies are increasingly turning to their customers as a means of securing their future competitive edge. CRM has become the mantra for success and developing cl...

Entanglement swapping at telecom wavelengths is at the heart of quantum networking in optical fiber infrastructures. Although entanglement swapping has been demonstrated experimentally so far using various types of entangled photon sources both in near-infrared and telecom wavelength regions, the rate of swapping operation has been too low to be applied to practical quantum protocols, due to li...

Meriem Belguidoum LIRE Laboratory, Computer Science Department, University Mentouri Constantine, Algeria TELECOM Bretagne, Computer science department Brest, France [email protected] Faiza Belala LIRE Laboratory, Computer Science Department, University Mentouri Constantine, Algeria [email protected] Fateh Latreche LIRE Laboratory, Computer Science Department, Universit...

In this paper we outline an approach to discovering and maintaining telecom Service Opportunities between distributed communicating peers. The approach is based on exchanging and comparing Service Goals. When we use the term service in the context of this article, we consistently refer to communication control services, as opposed to application services in its widest sense, or to transport ser...

Based on SERVAUALmodel, this paper brings in the entropy method to rank quality improvement (QI) priority for service attributes, and a service quality evaluation(SQE) model integrating competitive analyses has been structured to evaluate the mobile communication service quality (SQ) for Wuhan Branch of China Telecom(WBCT). The research shows that the QI priority of 22 service attributes has ch...