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http://dx.doi.org/10.3807/KJOP.2005.16.4.313

Eye Pattern Characteristic Based Active Stabilization Method for Direct Delection Receiver in Differential Phase Shift Key System  

Jang, Youn-Seon (한국전자통신연구원)
Park, Heuk (한국전자통신연구원)
Kim, Kwang-Joon (한국전자통신연구원)
Publication Information
Korean Journal of Optics and Photonics / v.16, no.4, 2005 , pp. 313-318 More about this Journal
Abstract
We propose an active stabilization method for the receiver of NRZ-DPSK transmission. The 1-bit delayed Mach-Zehlder interferometer is thermally controlled to maintain the largest DC component power ratio between the constructive and destructive output ports, for the optimum transmission condition. This method is very cost effective since no additional components are required. Experimental results show that the proposed scheme guarantees error free performance even when there was ~ 1 GHz optical carrier frequency fluctuation in 10 Gbps transmission.
Keywords
Differential phase shift key; 1 -bit delayed interferometer.;
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