使用光迴路之高速長距離波長多工傳輸系統之研究平台

Abstract

高速長距離波長多工光纖傳輸系統帶給我們令人驚歎的多彩生活。其中，波長多工是大幅增加傳輸量最值得注意的技術之一。我們架設一個使用光迴路之高速長距離波長多工傳輸系統的研究平台來瞭解並研究長距離系統。它包含了八個10Gb/s 頻道及每個五十公里放置的六個摻鉺光纖放大器。整個系統的色散及色散斜率均利用色散補償光纖調整至最小。藉著控制兩個開關，我們讓信號在迴路裡環行設定好的圈數來模擬長距離系統。實驗結果利用光譜、眼圖及位元錯誤率來展現。

The high-speed long-haul fiber optic transmission system brings us to a marvelous colorful life. The Wavelength division multiplexing (WDM) is one of the most remarkable technologies to enlarge the capacity of transmission. We set up a research platform of a high-speed long-haul WDM transmission system by using the circulating loop for more realizing and researching the long-haul systems. It includes eight 10Gb/s channels and six erbium-doped fiber amplifiers (EDFA) with 50km amplifier spacing. The dispersion of the platform is also managed to get minimum overall accumulated dispersion and dispersion slope by dispersion-compensating fiber (DCF). By controlling two switches we allow signals to circulate in the loop for designate times to simulate the long-haul transmission. The experiment results are observed by optical spectrum, eye diagram and the bit error rate (BER).