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All-optical network, reconfigurable optical add-drop multiplexer (ROADM) system development

Author: GuanChengGang
Tutor: LiuShouYin
School: Central China Normal University
Course: Radio Physics
Keywords: All-optical network Reconfigurable optical add / drop multiplexer Phased adaptive fuzzy PID algorithm SNMP Online Upgrade
CLC: TN913.7
Type: Master's thesis
Year: 2008
Downloads: 29
Quote: 0
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Abstract


Future business growth characteristics and requirements of the unpredictability of the network must have sufficient flexibility and scalability to meet future business volume growth. In the all-optical network, fully managed reconfigurable OADM (ROADM) is a flexible network core equipment , which can selectively drop any desired wavelength multiplexed channels , dynamic gain equalization the input light intensity , but also up and down through the network of wavelength service road for remote configuration , to achieve any wavelength to any port operation , which greatly facilitates new business development , reducing or eliminating the need for pre-planning network requirements. This paper aims to design and implement a ROADM system , it has a wavelength routing , dynamic gain equalization and remote reconfigurable three characteristics , surrounding this purpose, we carried out the following several aspects: 1, from the optical network node functional requirements, and studied the current main way to achieve ROADM system , we propose a ROADM system structure , and according to the block diagram explains how it works. Compared to traditional ROADM system structure, and we have proposed ROADM system cost and size , and reliability have certain advantages . 2, according to the proposed design ideas, the system involved in the optical devices are analyzed , describing the operating characteristics of various devices and control approach, focusing on the AWG devices and VOA-OSW devices were studied. 3, for the optical device characteristics , the system which we have carried out the implementation. Both from the hardware and software described the entire control circuit design ideas, which focuses on the system wavelength routing characteristics, dynamic gain equalization characteristic features and remote control of reconfigurable mechanism was discussed for the specific application of the system hardware design and program algorithm proposed some improvements and innovations , and the entire system module adds online upgrade function to facilitate the post-maintenance . 4, the last of the whole system performance and functional characteristics of the optical testing and analysis , the test results show that the system functions to meet the design requirements, fully able to meet the needs of all-optical networks .

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