Digital Domain Power Division Multiplexing Optical OFDM for Free Space Optical Communication (FSOC) Using 10-GHz Bandwidth Optical Components

IEEE Photonics Journal

卷:14

Chien-Hung Yeh¹  Chi-Wai Chow¹  Yun-Han Chang¹  Wahyu Hendra Gunawan²  Yang Liu²  Ching-Wei Peng²  Yin-He Jian³ 

[1] Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan;

[2] Department of Photonics &

[3] Philips Electronics Ltd., Shatin, Hong Kong;

关键词: Free space optical communication (FSOC);    laser diode (LD);    optical wireless communication (OWC);    orthogonal frequency division multiplexing (OFDM);   

DOI  :  10.1109/JPHOT.2022.3182867

来源: DOAJ

【 摘 要 】

We put forward and provide the first illustration of a high capacity and high spectral efficient free space optical communication (FSOC) system using digital domain power division multiplexing orthogonal-frequency-division-multiplexed (DDPD-O-OFDM) signal utilizing 10-GHz class optical components. In the proof-of-concept demonstration, a data rate of 2 × 30.8 Gbit/s can be achieved for each polarization multiplexed wavelength channel, fulfilling the pre-forward-error-correction bit-error-ratio (pre-FEC BER = 3.8 × 10⁻³). By employing the DDPD-O-OFDM here, the FSOC per channel capacity can be enhanced not only allowing the spectral overlapping of different orthogonal subcarriers, as in the case of OFDM; but also allowing channel multiplexing in the power domain to increase the spectral efficiency. The principle of DDPD-O-OFDM is discussed; and BER and signal-to-noise ratio (SNR) of different DDPD channels are experimentally measured.

【 授权许可】

Unknown