한국정보통신설비학회:학술대회논문집
- 2005.08a
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- Pages.149-153
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- 2005
Enhancement of ACPR and Noise level of Analog Optical Transmitter by Feedforward Compensation
피드포워드 보상회로를 적용한 아날로그 광 송신기의 ACPR과 잡음 레벨 개선
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Lee, Joon-Jae
(School of Electronic and Electrical Engineering, Chung-Ang University Microwave & Lightwave Telecommunication lab.) ;
- Park, Sang-Hyun (School of Electronic and Electrical Engineering, Chung-Ang University Microwave & Lightwave Telecommunication lab.) ;
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Yun, Young-Seol
(School of Electronic and Electrical Engineering, Chung-Ang University Microwave & Lightwave Telecommunication lab.) ;
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Choi, Young-Wan
(School of Electronic and Electrical Engineering, Chung-Ang University Microwave & Lightwave Telecommunication lab.)
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이준재
(중앙대학교 전자전기공학부 전파.광파 통신 연구실) ;
- 박상현 (중앙대학교 전자전기공학부 전파.광파 통신 연구실) ;
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윤영설
(중앙대학교 전자전기공학부 전파.광파 통신 연구실) ;
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최영완
(중앙대학교 전자전기공학부 전파.광파 통신 연구실)
- Published : 2005.08.01
Abstract
The optical fiber micro-cellular system requires the high linearity that determines the quality and capacity of system. Hence, there is a need for improving the linearity in mobile communication system. In order to compensate dispersion-induced signal distortion, we fabricated the optical feedforward transmitter. The compared 3rd-IMD was enhanced by 38 dB for two-tone case and the Adjacent Channel Power Ratio was enhanced by 20 dB for W-CDMA 1 carrier and by 16 dB for W-CDMA 3 carriers. Also, the induced noise level was reduced.