TY - JOUR
T1 - Absorption and scattering effects of Maalox, chlorophyll, and sea salt on a micro-LED-based underwater wireless optical communication [Invited]
AU - Tian, Pengfei
AU - Chen, Honglan
AU - Wang, Peiyao
AU - Liu, Xiaoyan
AU - Chen, Xinwei
AU - Zhou, Gufan
AU - Zhang, Shuailong
AU - Lu, Jie
AU - Qiu, Pengjiang
AU - Qian, Zeyuan
AU - Zhou, Xiaolin
AU - Fang, Zhilai
AU - Zheng, Lirong
AU - Liu, Ran
AU - Cui, Xugao
N1 - Publisher Copyright:
© 2019 Chinese Optics Letters.
PY - 2019/10/10
Y1 - 2019/10/10
N2 - In this work, a blue gallium nitride (GaN) micro-light-emitting-diode (micro-LED)-based underwater wireless optical communication (UWOC) system was built, and UWOCs with varied Maalox, chlorophyll, and sea salt concentrations were studied. Data transmission performance of theUWOCand the influence of light attenuation were investigated systematically. Maximum data transmission rates at the distance of 2.3 m were 933, 800, 910, and 790 Mbps for experimental conditions with no impurity, 200.48 mg/m3 Maalox, 12.07 mg/m3chlorophyll, and 5 kg/m3sea salt, respectively, much higher than previously reported systems with commercial LEDs. It was found that increasing chlorophyll, Maalox, and sea salt concentrations in water resulted in an increase of light attenuation, which led to the performance degradation of the UWOC. Further analysis suggests two light attenuation mechanisms, e.g., absorption by chlorophyll and scattering by Maalox, are responsible for the decrease of maximum data rates and the increase of bit error rates. Based on the absorption and scattering models, excellent fitting to the experimental attenuation coefficient can be achieved, and light attenuation by absorption and scattering at different wavelengths was also investigated. We believe this work is instructive apply UWOC for practical applications.
AB - In this work, a blue gallium nitride (GaN) micro-light-emitting-diode (micro-LED)-based underwater wireless optical communication (UWOC) system was built, and UWOCs with varied Maalox, chlorophyll, and sea salt concentrations were studied. Data transmission performance of theUWOCand the influence of light attenuation were investigated systematically. Maximum data transmission rates at the distance of 2.3 m were 933, 800, 910, and 790 Mbps for experimental conditions with no impurity, 200.48 mg/m3 Maalox, 12.07 mg/m3chlorophyll, and 5 kg/m3sea salt, respectively, much higher than previously reported systems with commercial LEDs. It was found that increasing chlorophyll, Maalox, and sea salt concentrations in water resulted in an increase of light attenuation, which led to the performance degradation of the UWOC. Further analysis suggests two light attenuation mechanisms, e.g., absorption by chlorophyll and scattering by Maalox, are responsible for the decrease of maximum data rates and the increase of bit error rates. Based on the absorption and scattering models, excellent fitting to the experimental attenuation coefficient can be achieved, and light attenuation by absorption and scattering at different wavelengths was also investigated. We believe this work is instructive apply UWOC for practical applications.
UR - http://www.scopus.com/inward/record.url?scp=85075184860&partnerID=8YFLogxK
U2 - 10.3788/COL201917.100010
DO - 10.3788/COL201917.100010
M3 - Article
AN - SCOPUS:85075184860
SN - 1671-7694
VL - 17
JO - Chinese Optics Letters
JF - Chinese Optics Letters
IS - 10
M1 - 100010
ER -