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http://dx.doi.org/10.5370/KIEE.2011.60.4.823

Systematic Design and Realization of opto-electrical Predistortion Optical Transmitter based on Microwave Circuit Modeling for Radio-over-Fiber Systems  

Lee, Tae-Kyeong (중앙대 공대 전자전기공학부)
Kim, Hong-Seung (중앙대 공대 전자전기공학부)
Oh, Guem-Yoon (중앙대 공대 전자전기공학부)
Kim, Doo-Gun (한국광기술원 광융합시스템 연구소)
Choi, Young-Wan (중앙대 전자전기공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.4, 2011 , pp. 823-828 More about this Journal
Abstract
We have systematically designed and experimentally demonstrated the opto-electrical predistortion optical transmitter using microwave circuit modelling for reducing the nonlinearity of the distributed-feedback laser diode (DFD-LD). The DFB-LD is analyzed using microwave circuits model based on rate equations. Through the system-level simulation for predistortion method, the optimized characteristics of the RF components in the system are confirmed. The simulated and experimental results show the reduced distortion products. These results are analyzed as the evaluation parameters for the miniaturization and optimization of the opto-electrical predistortion method in radio-over-fiber systems.
Keywords
Predistortion; Intermodulation distortion; Nonlinearity; Distributed-feedback laser diode;
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