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Paper Abstract and Keywords
Presentation 2011-08-26 09:25
Investigation of Modal Dispersion Compensation Using Digital Coherent Receiver in Multi-mode Fiber Transmission
Takayoshi Mori, Taiji Sakamoto, Takashi Yamamoto, Shigeru Tomita (NTT)
Abstract (in Japanese) (See Japanese page) 
(in English) Internet traffic is increasing rapidly, and considerable attention has been paid to the construction of high-speed networks. To realize a much higher transmission capacity, we need to avoid the nonlinear effects in optical fiber and the optical fiber fuse phenomenon. Enlarging the effective area (A_eff) of optical fibers is a practical way of reducing nonlinearity and increasing the fiber fuse threshold power. However, enlarging the A_eff makes it difficult to keep the single mode operation of the fiber at the signal wavelength. With multi-mode operation, mode dispersion causes serious signal degradation as a result of inter-symbol interference (ISI). Even if we can eliminate the higher-order mode by using a mode filter, multipath interference (MPI), which is caused by repeated mode conversion between fundamental and higher-order modes, cannot be removed with an optical method. If we can compensate for such signal degradation by mode dispersion, we can realize a much larger Aeff and expect to achieve a much higher transmission capacity. Here, we demonstrate the transmission of graded-index multi-mode fiber (GI-MMF) with MPI compensation using digital coherent technology.
Keyword (in Japanese) (See Japanese page) 
(in English) Multi-Mode Fiber / Mode dispersion compensation / Digital Coherent Receiver / / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 181, OCS2011-49, pp. 21-26, Aug. 2011.
Paper # OCS2011-49 
Date of Issue 2011-08-18 (OCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee OFT OCS  
Conference Date 2011-08-25 - 2011-08-26 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To OCS 
Conference Code 2011-08-OFT-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation of Modal Dispersion Compensation Using Digital Coherent Receiver in Multi-mode Fiber Transmission 
Sub Title (in English)  
Keyword(1) Multi-Mode Fiber  
Keyword(2) Mode dispersion compensation  
Keyword(3) Digital Coherent Receiver  
1st Author's Name Takayoshi Mori  
1st Author's Affiliation NTT (NTT)
2nd Author's Name Taiji Sakamoto  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Takashi Yamamoto  
3rd Author's Affiliation NTT (NTT)
4th Author's Name Shigeru Tomita  
4th Author's Affiliation NTT (NTT)
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Date Time 2011-08-26 09:25:00 
Presentation Time 25 
Registration for OCS 
Paper # IEICE-OCS2011-49 
Volume (vol) IEICE-111 
Number (no) no.181 
Page pp.21-26 
#Pages IEICE-6 
Date of Issue IEICE-OCS-2011-08-18 

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