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논문 기본 정보

자료유형
학술저널
저자정보
Bin Li (Communication University of China) Xu Chen (Communication University of China) Siyuan Dai (Communication University of China) Xinqiao Chen (School of Information and Communication Engineering)
저널정보
한국광학회 Current Optics and Photonics Current Optics and Photonics Vol.8 No.4
발행연도
2024.8
수록면
345 - 354 (10page)

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초록· 키워드

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The bit walk-off effect caused by fiber dispersion and carrier reuse in the base station (BS) are two key problems in radio-over-fiber (ROF) systems. In this paper, a novel frequency-octupling ROF system based on the Mach-Zehnder modulator (MZM) is proposed, which can overcome the bit walk-off effect and realize carrier reuse by inserting pilot signals. Theoretical analysis and simulation verification of the system are carried out. Under the condition of a Q factor greater than 6, the optical fiber transmission distance of the upper and lower links is more than 290 km and 80 km, respectively. The influence of the main device parameters of the system on the Q factor is analyzed when they deviate from their designed values. The system designed in this paper can not only effectively overcome the bit walk-off effect, but also solve the problem of downlink performance degradation and the limitation of tunability caused by conventional carrier reuse in ROF. The system can greatly increase the transmission distance and improve the performance of the system and has an important application prospect in ROF.

목차

I. INTRODUCTION
II. SYSTEM DESIGN
III. OPERATION PRINCIPLE
IV. SIMULATION EXPERIMENT
V. SYSTEM STABILITY
VI. DISCUSSION
VII. CONCLUSIONS
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