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  • 學位論文

DFB雷射二極體主模及側模之注入鎖模建構於光纖微波傳輸系統

Full-Duplex Radio-on-Fiber Transport Systems Based on Main and Multiple Side Mode Injection-Locked DFB Laser Diode

指導教授 : 呂海涵
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摘要


本論文研討主要研究利用分佈反饋雷射二極體主模及側模注入鎖模如何利用在全雙工光纖微波傳輸系統。 第一:我們應用DFB雷射二極體進行主模與側模注入技術,不僅成功地注入鎖住主模,而且也鎖住其他側模模態,此外,每個注入鎖模的側模抑制比也同時被提高,我們可運用此技術得到全新的多根光源,並可應用於混合式光纖微波分波多工傳輸系統上提供多重數據傳輸服務。 第二:使70Mbps/10GHz (WiMAX)數據信號能透過長距離單模光纖傳送,我們已經著手進行實驗性研究,以使該系統能以WiMAX數據流具備可行性,並且達到120公里單模光纖 (SMF)上鏈及下鏈鏈路上降低誤碼率的效果,並驗證這系統對於長距離全雙工光纖微波連結是具有相當可行性的。

並列摘要


In the thesis, a full duplex radio-on-fiber (ROF) transport systems based on main and multiple side modes injection-locked distributed feedback laser diode (DFB LD)is proposed and experimentally investigated. First, we propose and demonstrated a distributed feedback laser diode (DFB LD) with main and multiple side modes injection-locked. DFB laser diode can be successfully injection-locked not only in the main mode but also in different side modes. Besides, the side-mode suppression ratio (SMSR) value of each injection-locked mode is enhanced, it means that a new approach is suitable for the use of multiple optical sources. Our proposed scheme has the potential to be used as optical sources for radio-on-wavelength division multiplexing (WDM) transport systems to provide multiple data transmission services. Second, A data signal of 70Mbps/10GHz (WiMAX) Signal is transmitted over long-haul single-mode fiber (MF) transmission. We have experimentally investigated to establish the practicability of our proposed systems with WiMAX data tream and achieved good BER performance over 120KM SMF link for both down-link and up-link transmissions in our proposed full-duplex ROF transport systems.

參考文獻


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