本論文提出一個基於寬頻譜光源頻譜分割技術並利用光放大器來抑制雜訊以及遠端泵激放大的分波多工被動光網路架構。其優點為建置成本低且易於實現。使用循環式的陣列波導光柵將自發放射光源做頻譜分割，分割後的光源透過半導體光放大器抑制雜訊，並利用摻鉺光纖放大器來補償經過各元件及傳輸的損耗。
藉由交互作種的概念，抑制後的訊號可有效地利用，同時提供上下行的傳輸光源，最多可提供64個通道。透過電致吸收調變器載上訊號，並雙向傳輸25公里。為了降低色散對系統的影響，使用大有效面積光纖傳輸。將系統架構細分為三個子架構，探討不同雜訊抑制程度對應的傳輸效能並得到最佳化的系統配置。實驗上利用雜訊抑制的自發放射光源可實現雙向傳輸10 Gb/s的資料速率，大部分通道傳輸效能可達前向錯誤更正的標準。

We have proposed and experimentally demonstrated a remotely pumped wavelength-division-multiplexed passive optical network (WDM-PON) with spectrum-sliced ASE light source which can be a low-cost and realizable configuration. The remotely pumped erbium-doped fiber amplifier (RP-EDFA) can compensate the propagation loss and spectrum slicing loss. The ASE light source is sliced in the frequency domain using cyclic arrayed waveguide gratings (AWGs); and its noise is suppressed by using a gain-saturated cascaded semiconductor optical amplifier (SOA).
The noise suppressed signal can provide downstream and upstream transmission by using the cross seeding concept. With this approach, it is likely to support up to 64 channels. An electro-absorption modulator (EAM) is used as the encoder for each downstream and upstream channel. In order to reduce the dispersion effect, we use a 25 km larger effective area fiber (LEAF) for transmission. The experimental results show that symmetric bidirectional 10 Gb/s transmission can be realized with the proposed scheme. All the downstream channels and the upstream shorter-wavelength channels can achieve satisfactory performance by using the forward error correction.

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