Channel Enlargement of PON System Using Nonreciprocal Multiplexing Filter Based on CWDM

ETRI Journal

关键词: passive optical network (PON);    optical access network;    Fiber optics communications;   

Others  :  1185842
DOI  :  10.4218/etrij.09.0208.0346

【 摘 要 】

We propose a nonreciprocal filter based on coarse wavelength division multiplexing (CWDM) that reduces the upstream channel insertion loss in a passive optical network (PON). We also propose a method to increase the number of channels/optical network units (ONUs) in PON systems using the proposed filter to reduce the service cost per subscriber. Experimental results show that the PON system with the proposed 4-channel filter can reduce the power budget of the upstream and increase the number of ONUs by 3 to 4 times that of a conventional time-division multiplexing PON.

   

【 参考文献 】

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