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Journal of Semiconductors
Vol. 42, Issue 8, 081801 (2021)

Ultraviolet communication technique and its application

Liang Guo^1、2、3, Yanan Guo^1、2、3, Junxi Wang^1、2、3, and Tongbo Wei^1、2、3

Author Affiliations

¹Research and Development Center for Semiconductor Lighting Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Beijing 100083, China

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DOI: 10.1088/1674-4926/42/8/081801 Cite this Article

Liang Guo, Yanan Guo, Junxi Wang, Tongbo Wei. Ultraviolet communication technique and its application[J]. Journal of Semiconductors, 2021, 42(8): 081801 Copy Citation Text

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Abstract

With recent developments of deep ultraviolet (DUV) light-emitting diodes and solar-blind detectors, UV communication (UVC) shows great potential in replacing traditional wireless communication in more and more scenarios. Based on the atmospheric scattering of UV radiation, UVC has gained considerable attention due to its non-line-of-sight ability, omnidirectional communication links and low background noise. These advantages make UVC an ideal option for covert secure communication, especially for military communication. In this review, we present the history and working principle of UVC with a special focus on its light sources and detectors. Comprehensive comparison and application of its light sources and detectors are provided to the best of our knowledge. We further discuss the future application and outlook of UVC. Hopefully, this review will offer valuable insights into the future development of UVC.

$I = {I_0}{{\rm e}^{ - \mu (\lambda )l}}.$

(1)

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$\mu (\lambda ) = {\alpha _{{\rm a}}}(\lambda ) + {\alpha _{\rm m}}(\lambda ) + {\beta _{\rm a}}(\lambda ) + {\beta _{\rm m}}(\lambda ),$

(2)

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${P_{{\rm{r,LOS}}}} = {P_{\rm t}}\left(\frac{{{{\rm e}^{ - {K_{\rm e}}{r_1}}}}}{{r_1^2}}\right){\left(\frac{\lambda }{{4\pi {r_2}}}\right)^2}{{\rm e}^{ - {K_{\rm e}}{r_2}}} = \frac{{{P_{\rm t}}{A_{\rm r}}}}{{4\pi r_1^2r_2^2}}{{\rm e}^{ - {K_{\rm e}}({r_1} + {r_2})}}.$

(3)

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${h_1} = \frac{{r\sin ({\Phi _2}/2)}}{{\sin ({\Phi _1}/2 + {\Phi _2}/2)}},$

(4)

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${h_2} = \frac{{r\sin ({\Phi _1}/2)}}{{\sin ({\Phi _1}/2 + {\Phi _2}/2)}},$

(5)

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${r_1} = {h_1}\cos ({\Phi _1}/2) = \frac{{r\sin ({\Phi _2}/2)\cos ({\Phi _1}/2)}}{{\sin ({\Phi _1}/2 + {\Phi _2}/2)}},$

(6)

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${r_2} = {h_2}\cos ({\Phi _2}/2) = \frac{{r\sin ({\Phi _1}/2)\cos ({\Phi _2}/2)}}{{\sin ({\Phi _1}/2 + {\Phi _2}/2)}}. $

(7)

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${P_{{\rm{r,LOS}}}} \!=\! \frac{{{P_{\rm t}}{A_{\rm r}}}}{{4\pi {{\left(\dfrac{{r\sin ({\Phi _2}/2)\cos ({\Phi _1}/2)}}{{\sin ({\Phi _1}/2 + {\Phi _2}/2)}}\right)}^2}{{\left(\dfrac{{r\sin ({\Phi _1}/2)\cos ({\Phi _2}/2)}}{{\sin ({\Phi _1}/2 + {\Phi _2}/2)}}\right)}^2}}}{{\rm e}^{ - {K_{\rm e}}({r_1} + {r_2})}},$

(8)

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${P_{\rm{r,LOS}}} = \frac{{{P_{\rm t}}{A_{\rm r}}({\Phi _1}/2 + {\Phi _2}/2)}}{{4\pi {r^4}{{\sin }^2}({\Phi _2}/2){{\cos }^2}({\Phi _1}/2){{\sin }^2}({\Phi _1}/2){{\cos }^2}({\Phi _2}/2)}}{{\rm e}^{ - {K_{\rm e}}({r_1} + {r_2})}},$

(9)

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$ {P_{{\rm{r,LOS}}}} = \frac{{4{P_{\rm t}}{A_{\rm r}}}}{{\pi {r^4}}}\frac{{{{\sin }^4}({\Phi _1}/2 + {\Phi _2}/2)}}{{{{\sin }^2}{\Phi _1}{{\sin }^2}{\Phi _2}}}{{\rm e}^{ - {K_{\rm e}}r}}. $

(10)

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$ {P_{{\rm{r,NLOS}}}} = \frac{{{P_{\rm t}}}}{{{\Omega _1}}}\frac{{{{\rm e}^{ - {K_{\rm e}}{r_1}}}}}{{{r_1}^2}} \times \frac{{{K_{\rm s}}{P_{\rm s}}V}}{{4\pi }}{\left(\frac{\lambda }{{4\pi {r_2}}}\right)^2}{{\rm e}^{ - {K_{\rm e}}{r_2}}}\frac{{4\pi {A_r}}}{{{\lambda ^2}}}. $

(11)

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${\Omega _1} = 2\pi \left[ {1 - \cos ({\phi _1}/2)} \right],$

(12)

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${r_1} = r\sin {\theta _2}/\sin {\theta _{\rm s}},$

(13)

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${r_2} = r\sin {\theta _1}/\sin {\theta _{\rm s}},$

(14)

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${\theta _{\rm s}} = {\theta _1} + {\theta _2},\;V \gg {r_2}{\phi _2}{d^2}.$

(15)

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${P_{{\rm{r,NLOS}}}} = \frac{{{P_{\rm t}}{A_{\rm r}}{K_{\rm s}}{P_{\rm r}}{\phi _2}\phi _1^2\sin ({\theta _1} + {\theta _2})}}{{32{\pi ^3}r\sin {\theta _1}}} \times \left( - \frac{{{K_{\rm e}}r(\sin {\theta _1} + \sin {\theta _2})}}{{\sin ({\theta _1} + {\theta _2})}}\right),$

(16)

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References (118)

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Liang Guo, Yanan Guo, Junxi Wang, Tongbo Wei. Ultraviolet communication technique and its application[J]. Journal of Semiconductors, 2021, 42(8): 081801

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