我們主要設計為寬頻(C-band + L-band，1530nm ~1610nm)摻鉺光纖放大器。在C-band方面我們採用一個具有部分增益箝制(partially clamped)功能的前置放大器，以及由一組波長成對的布拉格光纖光柵(FBG)共振所組成的增益箝制放大器，構成了具有增益箝制功能的C-band放大器，其中我們所設計之具有部分增益箝制功能的前置放大器，不同於傳統上必須利用一組光循環器加上band pass filter和衰減器所達成之高成本的增益箝制放大器，並且由於在第一級使用元件較少和增益箝制功能不如一組布拉格光纖光柵所組成的增益箝制放大器那麼地強，所以使得此具有部分增益箝制功能的前置放大器之雜訊指數表現可以控制得當，以致於整體的雜訊指數不會太高。
而在L-band方面，其訊號經過整個C-band的摻鉺光纖放大器後，再串接一組由光循環器加上fiber loop mirror所組成的double pass架構，如此一來可大大地提升L-band訊號的放大效能，並且利用一個波長為1565nm的FBG和fiber loop mirror的共振，達成L-band放大器之增益箝制的功能。
除此之外，此架構還有一項優點，傳統的前置放大器由於C-band訊號之增益遠大於L-band訊號之增益，所以當C-band訊號與L-band訊號同時經過前置放大器時，會造成L-band訊號之增益受影響，但是由於本架構在前置放大器加入了增益箝制的功能，所以使得L-band訊號受C-band訊號影響的情形亦改善了。利用我們所設計的架構不但可以解決前置放大器訊號相互影響的問題，亦可達成高增益値、低雜訊指數、增益平坦以及增益箝制等功能之摻鉺光纖放大器。

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