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Journal Article
Channel Enlargement of PON System Using Nonreciprocal Multiplexing Filter Based on CWDM
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- Authors
- Bong Kyu Kim, Bin Young Yoon, Yool Kwon
- Issue Date
- 2009-04
- Citation
- ETRI Journal, v.31, no.2, pp.231-233
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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. © 2009 ETRI.
- KSP Keywords
- Coarse wavelength division multiplexing(CWDM), Optical network unit(ONU), PON system, Passive optical network (pon), Service Cost, Time division multiplexing, Wavelength Division Multiplexing(WDM), insertion loss, power budget