Sökning: "arrayed waveguide grating"
Hittade 3 uppsatser innehållade orden arrayed waveguide grating.
1. Analysis of the Performance of Different DWDM FilterTechnologies for Mobile Fronthaul Applications
Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)Sammanfattning : In recent years, several studies and simulations have been made on changing the current Radio Access Network (RAN) architecture into a more centralized access network where the base band processing is done in a central oce (CO) instead of out by the antenna site. This new architecture is denoted as the mobile fronthaul and is planned to be in use for the coming 5G network. LÄS MER
2. Optical Time Domain Reflectometer based Wavelength Division Multiplexing Passive Optical Network Monitoring
Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)Sammanfattning : This project focuses on wavelength division multiplexing passive optical network (WDM-PON) supervision using optical time domain reflectometer (OTDR) for detection and localization of any fault occurred in optical distribution network. The objective is to investigate the impact of OTDR monitoring signal on the data transmission in the WDM-PON based on wavelength re-use system, where the same wavelength is assigned for both upstream and downstream to each end user. LÄS MER
3. Study on Supervision of Wavelength Division Multiplexing Passive Optical Network systems
Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)Sammanfattning : The wavelength-division-multiplexed passive optical network (WDM-PON) offers many advantages such as large bandwidth per user, easy management, high network security and low insertion loss enabling long-reach and/or high split-ratio. However, with the rapid development and growing interest for deployment of WDM-PON, the PON systems are becoming increasingly vulnerable to various failures. LÄS MER
