Free-space optical communication using patterned modulation and bucket detection

Tianyi Mao; Qian Chen; Weiji He; Yunhao Zou; Huidong Dai; Guohua Gu

doi:10.3788/COL201614.110607

Chinese Optics Letters, Volume. 14, Issue 11, 110607(2016)

Free-space optical communication using patterned modulation and bucket detection

Tianyi Mao¹, Qian Chen^1、*, Weiji He^1,2,3, Yunhao Zou¹, Huidong Dai¹, and Guohua Gu¹

¹Jiangsu Key Laboratory of Spectral Imaging & Intelligence Sense (SIIS), Nanjing University of Science and Technology, Nanjing 210094, China

²Key Laboratory of Intelligent Perception and Systems for High-Dimensional Information of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China

³e-mail: hewj@mail.njust.edu.cn

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Figures & Tables(7)

Fig. 1. Experimental setup of FSO communication using patterned modulation and bucket detection. BE: beam expander, Ap: aperture, BP: beam splitter, BL: background light, Te: telescope, DN: device noise, BD: bucket detector, Co: computer.

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Fig. 2. (a) The results of the BER performance as a function of the changes in the average transmittance at different SNR levels (classical detection). (b) The results of BER performance as a function of the changes in the average transmittance at different SNR levels (semi-classical detection).

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Fig. 3. Experimental results of FSO communication using pattered modulation and bucket detection. (a) is the original signal, (b) is the reconstructed signal, and (c) shows the corresponding bit errors of (a) and (b). The value “1” represents that the original signal is “1” and the reconstructed signal is “0.” The value “−1” represents that the original signal is “0” and the reconstructed signal is “1.” The value “0” represents the correct communication.

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Table 1. Experimental Results of the Eight Random Signals (With Moving Diffusers)
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Table 1. Experimental Results of the Eight Random Signals (With Moving Diffusers)
Signal 1 Signal 2 Signal 3 Signal 4
BER 0.28% 0.25% 0.42% 0.19%
Signal 5 Signal 6 Signal 7 Signal 8
BER 0.14% 0.39% 0.33% 0.20%

Table 2. Experimental Results of the Eight Random Signals (With Environmental Illuminations)
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Table 2. Experimental Results of the Eight Random Signals (With Environmental Illuminations)
Signal 1 Signal 2 Signal 3 Signal 4
BER 0.17% 0.14% 0.31% 0.08%
Signal 5 Signal 6 Signal 7 Signal 8
BER 0.03% 0.28% 0.22% 0.09%

Table 3. Experimental Results of the Eight Random Signals (With Moving Diffusers and Environmental Illuminations)
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Table 3. Experimental Results of the Eight Random Signals (With Moving Diffusers and Environmental Illuminations)
Signal 1 Signal 2 Signal 3 Signal 4
BER 0.33% 0.30% 0.47% 0.23%
Signal 5 Signal 6 Signal 7 Signal 8
BER 0.19% 0.44% 0.38% 0.25%

Table 4. Results of ENT Test
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Table 4. Results of ENT Test
Experimental results Ideal results
Entropy 0.999990 1
Arithmetic mean value 0.5019 0.5
Monte Carlo value for $π$ 3.1278320 3.1415926
Serial correlation coefficient −0.002463 0

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Tianyi Mao, Qian Chen, Weiji He, Yunhao Zou, Huidong Dai, Guohua Gu. Free-space optical communication using patterned modulation and bucket detection[J]. Chinese Optics Letters, 2016, 14(11): 110607

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Jul. 14, 2016

Accepted: Sep. 29, 2016

Published Online: Aug. 2, 2018

The Author Email: Qian Chen (chenqian@njust.edu.cn)

DOI:10.3788/COL201614.110607

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Experimental Results of the Eight Random Signals (With Moving Diffusers)

Table 1. Experimental Results of the Eight Random Signals (With Moving Diffusers)

Table 2. Experimental Results of the Eight Random Signals (With Environmental Illuminations)

Table 2. Experimental Results of the Eight Random Signals (With Environmental Illuminations)

Table 3. Experimental Results of the Eight Random Signals (With Moving Diffusers and Environmental Illuminations)

Table 3. Experimental Results of the Eight Random Signals (With Moving Diffusers and Environmental Illuminations)

Table 4. Results of ENT Test

Table 4. Results of ENT Test