| Summary: | 碩士 === 國立臺灣科技大學 === 電子工程技術研究所 === 86 === The subject of this thesis is on the design and analyses of WDM cross-connect switches using wavelength routers. WDM is a very important technique in photonic networks, because of the ultrahighchannel capacity that it can provide. We exploited the spectral characteristics of an AWG for designing WDM cross-connect switches with broadcast and routing functions. Inaddition, a novel approach, the transfer function matrix method, wasused to model the AWG and other optical components for analyzing the transmission performance and crosstalk of the switch. From measuringthe transmission characteristics of the AWG we discussed the effects of the misalignment between tunable lasers and an AWG and provided the detailed spectral characteristics of AWG in the 1.3-um window. We also demonstrated the broadcast and routing functions of an AWG inthe 1.3-um window. In numerical analyses, when an eight-port AWG and a LED are used,the limitation on the data rate of a broadcast signal is about 200 Mbps.For the routed signals with a launched power as low as 0.2 mW, a data rate above 2.5 Gbps can be easily achieved. The induced crosstalk from the routed signals to the broadcast signals was also investigated.
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