Free space wide-spectrum optical communication system based on supercontinuum

Junda Chen; Xinmeng Zhang; Zhiwen Sun; Ziqi Jiang; Peng Lin; Tianshu Wang

doi:10.1117/12.2522895

14 February 2019 Free space wide-spectrum optical communication system based on supercontinuum

Junda Chen, Xinmeng Zhang, Zhiwen Sun, Ziqi Jiang, Peng Lin, Tianshu Wang

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 1104823 (2019) https://doi.org/10.1117/12.2522895
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

In this paper, we experimentally demonstrated a free space optical communication system transmission based on continuous wide-spectrum laser at 10Gbit/s over 1km simulated atmospheric channel. The wide-spectrum laser is part of supercontinuum generated by using a self-made picosecond mode-locked laser based on Raman gain solution effect to pump a dispersion compensation fiber which dispersion coefficient are D=-135ps/nm ⋅ km@1550nm. A 10Gbit/s NRZ signal was then modulated on the wide-spectrum laser and transmitted into a tunable simulated atmospheric turbulence pool which can simulate atmospheric turbulent intensity up to 0.59cm of coherent length. Scintillation intensities and bit error rates of transmission based on wide-spectrum laser and narrow linewidth laser were compared. The results show that communication sensitivity reached -10.98dBm at FEC limit. which has 1.53dB improvement comparing with FSO communication system using narrow linewidth laser under weak turbulent condition.

Citation Download Citation

Junda Chen, Xinmeng Zhang, Zhiwen Sun, Ziqi Jiang, Peng Lin, and Tianshu Wang "Free space wide-spectrum optical communication system based on supercontinuum", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 1104823 (14 February 2019); https://doi.org/10.1117/12.2522895

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KEYWORDS

Atmospheric turbulence

Telecommunications

Optical communications

Optical simulations

Turbulence

Free space

Picosecond phenomena

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