Study of bidirectional transmission system using novel four-port interleavers
|關鍵字:||光纖雙向傳輸系統;間隔交錯器;迴路系統;Optical bidirecitonal transmission system;Interleaver;Re-circulating loop system|
Bidirectional transmission over a single fiber link is an appealing architecture. Not only could it reduce the infrastructure -- such as fibers, optical splitters and optical amplifiers -- by a factor two, but it also increases the potential of bandwidth utilization. However, realization of bidirectional amplification and Rayleigh backscattering are the difficulties among bidirectional transmission. Therefore, we proposed a unidirectional amplification scheme which facilitates bidirectional transmission by using an interleaver. In this thesis, the principle and mathematical model of the interleaver are studied first, where the experimental measurement and operations of an interleaver are included as well. In a bidirectional transmission system, we installed two bidirectional transmission systems (i.e., straight line and re-circulating loop configurations) to demonstrate the feasibility of such interleaver-based bidirectional amplifier. Afterward, inspired by the experimental results, we simulated both the loop and the straight line bidirectional transmission systems. All in all, both experimental and simulation results reveal that it is over-optimistic to estimate long distance bi-directional transmission performance using a re-circulating loop.
|Appears in Collections:||Thesis|
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