國立臺灣大學電信工程學研究所何鏡波2006-07-262018-07-052006-07-262018-07-052005-07-31http://ntur.lib.ntu.edu.tw//handle/246246/20330多波長被動光環網路所需之測試節點需要許多獨立訊號源，以建立高速可程式網路 互連測試平台，雖然商用高速設備可以購得但設備價格卻非常昂貴。本計畫專注於 建立網路測試節點的重點在於設計並完成高速可程式網路互連測試平台，在這國家 型電性計畫的各個階段過程中，此高速可程式網路互連測試平台可演進為一個乙太 網路節點，並可處理每秒10 億位元秒(10-Gb/s)的網路流量。目前此測試平台正使用 硬體描述語言 (Verilog) 並在現場可程式邏輯陣列 (FPGA) 板上驗證，並配合高速多 工/解多功晶片將資料作高低速轉換，任意資料模型產生以及錯誤計算的功能可以在 現場可程式邏輯陣列上重新規劃執行資料處理。 除了測試平台外，具有高光纖色散及低成本特性的每秒10 億位元秒(10-Gb/s)傳收機 也已經完成。此傳收機建立在可直接調變的分布式回授雷射(DFB)，利用一個窄頻 光濾波器可使傳輸距離達60 公里，相較於傳統架構的20 公里，確實得到很好的效 果，應用在環狀半徑較小的被動式光環網路，低成本的直調傳收機可用來取代高價 的外部調變傳收機，使網路成本與架構更具彈性及競爭力。The test-bed for multi-wavelength passive optical (POR) network requires many independent signal sources as high-speed programmable networking testing platform. Although commercial high-speed equipment is available, those equipments are typically very expensive. The focus of this project is to build a networking test-bed is the design and implement of the high-speed programmable networking testing platform. In the continuation of this project, the testing platform will evolve to a networking node capable to process 10-Gb/s Ethernet traffic. Currently, the testing platform is programmed in Verilog and verified in a FPGA test broad. The FPGA is combined a Mux and DeMux circuits. The FPGA for pattern generator and error counting can be re-programmed for data processing In additional to the testing platform, low-cost high-dispersion-tolerance 10-Gb/s transceiver is also implemented. Based on directly-modulated of a simple distributedfeedback laser with a narrow-band optical filtering, the signal can be transmitted for a distance of 60-km with dispersion compensation as compared with a distance of only 20 km in conventional scheme. The low-cost transceiver can greatly lower the cost for POR with small diameter without the requirement of costly externally modulated transceiver.application/pdf626516 bytesapplication/pdfzh-TW國立臺灣大學電信工程學研究所reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/20330/1/932219E002008.pdf