Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tzanakaki, A. Zacharopoulos, I. Parcharidou, D. Tomkos, I. |
| Copyright Year | 2005 |
| Description | Author affiliation: Athens Inf. Technol. Center, Greece (Tzanakaki, A.; Zacharopoulos, I.; Parcharidou, D.; Tomkos, I.) |
| Abstract | A study of WDM systems that utilize a number of optical add drop multiplexers (OADMs) to enable transparent add and drop of wavelengths at specific network locations as required by the traffic demands were presented in this paper. Through extensive simulation results it will be shown that the presence of OADMs and in particular the optical filtering associated with them improves the overall system performance. This is due to that in the case of systems suffering by nonlinear effects, periodic optical filtering assists in suppressing the spectral broadening imposed by nonlinear interactions between the WDM channels and therefore suppresses the associated penalty. This is in contrast to the effect of optical filtering in linear systems, where it introduces spectral narrowing and hence transmission penalties. The effect of nonlinear suppression directly impacts the power level that can be tolerated by the system before nonlinear penalties start degrading the overall performance. In such systems higher launch power can be used supporting improved optical signal to noise ratio and suppressed nonlinear penalties providing a significant improvement in the overall system performance. A large number of simulations have been run in order to identify the optimum operating point in terms of launch power in this type of systems. The analysis focuses on 10 Gbit/s systems supporting 100 GHz and 50 GHz channel spacing. A number of scenarios supporting varying transmission distances, different number of OADMs and various optical filter bandwidths are studied and compared. Significant attention is paid on the interplay of the variety of impairments and the identification of suitable trade-offs to ensure optimized system performance. |
| Sponsorship | Gov. of Catalonia Minist. of Univ., Res. and Inf. Soc. Telefonica i2cat Found. - Res. and Innovation in the Internet Area |
| Starting Page | 16 |
| Ending Page | 19 |
| File Size | 400339 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780392361 |
| DOI | 10.1109/ICTON.2005.1505743 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-07-07 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Nonlinear optics Optical add-drop multiplexers Add-drop multiplexers Optical filters Filtering System performance Wavelength division multiplexing Optical fiber networks Telecommunication traffic Traffic control |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|