Optimization of UWB-over-fiber system transmission performance

Cong Du; Di Wang; Yujiao Ding; Wei Dong

doi:10.1117/12.2656441

9 January 2023 Optimization of UWB-over-fiber system transmission performance

Cong Du, Di Wang, Yujiao Ding, Wei Dong

Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 125072D (2023) https://doi.org/10.1117/12.2656441
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China

Abstract

We propose a novel method to optimize the transmission performance of the UWB-over-fiber system. In the proposed UWB-over-fiber system, an UWB signal generator based on microwave photonics is used as the signal source in the central unit. The UWB signal generator is used to generate high-order UWB signal. Direct sequence binary phase shift keying (DS-BPSK) modulation and convolutional coding are applied to the baseband UWB signal. The dispersion and transmission loss of the fiber can be compensated by a chirped fiber Bragg grating and an erbium-doped fiber amplifier, respectively. The coherent receiving technology is applied for demodulation, and the Viterbi decoding technique is used for channel decoding. The feasibility of the proposed scheme is demonstrated by simulations. At the forward error correction (FEC) threshold of 3.8×10×⁻³ , the receiver sensitivity is around −16 dBm and the power penalty is around 0.2 dB, after 25-km fiber transmission.

Citation Download Citation

Cong Du, Di Wang, Yujiao Ding, and Wei Dong "Optimization of UWB-over-fiber system transmission performance", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125072D (9 January 2023); https://doi.org/10.1117/12.2656441

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