Optical Axis Identification Technique for Free Space Optics Transmission

Yuki Tashiro, Yuta Shimada, Kiyotaka Izumi, Takeshi Tsujimura, Koichi Yoshida

Abstract


This paper describes optical axis adjustment technique for an active free space optics transmission system. This system precisely controls the direction of a collimated thin laser beam using a motor driven laser emitting mechanism and positioning photodiodes. Before beginning laser beam feedback control, it is required to guide the laser beam within the range of the positioning photodiodes for initial laser beam alignment. This paper proposes an arrival position presumption method of laser beam traveling along the long distance from transmitter. A positioning sensor containing several photodiodes measures laser luminescence distribution, and analytically calculates the optical axis of laser beam according to the modified Gaussian beam optics based on four or five distributed local intensity of laser luminescence. Experiments are conducted to evaluate the accuracy of the presumption, and results reveal that the method is effective in leading the laser beam onto a distant receiver.


Full Text:

PDF

References


H. Willebrand, and B. S. Ghuman, Free-Space Optics: Enabling Optical Connectivity in Today’s Networks, Sams Publishing, 1999.

D. C. O’Brien, G. Faulkner, E. B. Zyambo, and K. Jim, Integrated transceivers for optical wireless communications, IEEE J. Selected Topics in Quantum Electronics, vol. 11, no. 1, pp. 173-183, 2005.

J. Vitasek, E. Leitgeb, T. David, and J. Latal, Misalignment loss of Free Space Optic link, in Proc. 16th Int. Conf. Transparent Optical Networks, pp. 1-5, 2014.

S. Dubey, S. Kumar, and R. Mishra, Simulation and performance evaluation of free space optic transmission system, in Proc. Int. Conf. Computing for Sustainable Global Development, pp. 850-855, 2014.

P. Puri, P. Garg, and M. Aggarwal, Partial Dual-Relay Selection Protocols in Two-Way Relayed FSO Networks, J. Lightwave Technology, vol. 33, no. 21, pp. 4457-4463, 2015.

P. Puri, N. D. Chatzidiamantis, P. Garg, M. Aggarwal, and G. K. Karagiannidis, Two-Way Relay Selection in Multiple Relayed FSO Networks, IEEE Wireless Communications Letters, vol. 4, no. 5, pp. 485-488, 2015.

J. Xue, A. Garg, B. Ciftcioglu, S. Wang, J. Hu, I. Savidis, M. Jain, M. Huang, H. Wu, E. G. Friedman, G. W. Wicks, D. Moore, An intrachip free-space optical interconnect, in Proc. 37th annual international symposium on Computer architecture, pp. 94-105, 2010.

A. Gomez, K. Shi, C. Quintana, G. Faulkner, B. C. Thomsen, and D. OBrien, A 50 Gb/s Transparent Indoor Optical Wireless Communications Link With an Integrated Localization and Tracking System, Journal of Lightwave Technology, vol. 34, no. 10, pp. 2510-2517, 2016.

A. Sharma, and R.S. Kaler, Designing of high-speed inter-building connectivity by free space optical link with radio frequency backup, IET Communications, vol. 6, no. 16, pp. 2568-2574, 2012.

R. Brning, B. Ndagano, M. McLaren, S. Schrter, J. Kobelke, M. Duparr and A. Forbes, Data transmission with twisted light through a free-space to fiber optical communication link, Journal of Optics, vol. 18, no. 3, 03LT01, 2016.

H. Kaushal, G. Kaddoum, V. K. Jain, and S. Kar, Experimental investigation of optical beam size for FSP uplink, Optics Communications, vol. 400, pp. 106-114, 2017.

K. Tanaka, T. Tsujimura, K. Yoshida, K. Katayama, and Y. Azuma, Frame-loss-free Line Switching Method for In-service Optical Access Network using Interferometry Line Length Measurement, in Proc. Optical Fiber Communication Conf. and National Fiber Optic Engineers Conf., postdeadline PDPD6, 2009.

M. Taheri, N. Ansari, J. Feng, R. R-Cessa, and M. Zhou, Provisioning Internet Access Using FSO in High-Speed Rail Networks, IEEE Network, vol. PP, no. 99, pp. 12-17, 2017.

Y. L. Yu, S. K. Liaw, H. H. Chou, H. L. Minh, and Z. Ghassemlooy, A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges, IEEE Photonics Journal, vol. 7, no. 6, No. 7905509, 2015.

S. K. Liaw, K. Y. Hsu, J. G. Yeh, and Y. L. Yu, Impacts of environmental factors to bi-directional 240 Gb/s WDM free-space optical communication, Optics Communications, vol. 396, pp. 127-133, 2017.

N. A. M. Nor, Z. F. Ghassemlooy, J. Bohata, P. Saxena, M. Komanec, S. Zvanovec, M. R. Bhatnagar, and M. A. Khalighi, Experimental Investigation of All-Optical Relay-Assisted 10 Gb/s FSO Link Over the Atmospheric Turbulence Channel, Journal of Lightwave Technology, vol. 35, no. 1, pp. 45-53, 2017.

N. Badar, and R. K. Jha, Performance comparison of various modulation schemes over free space optical (FSO) link employing GammaGamma fading model, Optical and Quantum Electronics, vol. 49, no. 192, 2017.

M. A. Esmail, H. Fathallah, and M. S. Alouini, Outdoor FSO Communications Under Fog: Attenuation Modeling and Performance Evaluation, IEEE Photonics Journal, vol. 8, no. 4, 2016.

M. H. Ibrahim, H. A. Shaban, and M. H. Aly, Effect of different weather conditions on BER performance of single-channel free space optical links, Optik - International Journal for Light and Electron Optics, vol. 137, pp. 291-297, 2017.

M. P. Nicos, H. E. Nistazakis, and G. S. Tombras, On the BER performance of FSO links with multiple receivers and spatial jitter over gamma-gamma or exponential turbulence channels, Optik – International Journal for Light and Electron Optics, vol. 138, pp. 269-279, 2017.

F. Zhu, S. Huang, W. Shao, J. Zhang, M. Chen, W. Zhang, and J. Zeng, Free-space optical communication link using perfect vortex beams carrying orbital angular momentum (OAM), Optics Communications, vol. 396 , pp. 50-57, 2017.

D. Zheng, Y. Li, B. Li, W. Li, E. Chen, and J. Wu, Free Space to Few-Mode Fiber Coupling Efficiency improvement with Adaptive Optics under Atmospheric Turbulence, in Proc. 2017 Optical Fiber Communication Conference, pp. 1-3, 2017.

Z. Huang, Z. Wang, M. Huang, W. Li, T. Lin, P. He, and Y. Ji, Hybrid Optical Wireless Network for Future SAGO-Integrated Communication Based on FSO/VLC Heterogeneous Interconnection, IEEE Photonics Journal, vol. 9, no. 2, pp. 7902410, 2017.

Y. Sun, F. Yang, and J. Gao, Comparison of Hybrid Optical Modulation Schemes for Visible Light Communication, IEEE Photonics Journal, vol. 9, no. 3, pp. 7904213, 2017.

Z. Jing, Z. Shang-hong, Z. Wei-hu, and C. Ke-fan, Performance analysis for mixed FSO/RF Nakagami-m and Exponentiated Weibull dual-hop airborne systems, Optics Communications, vol. 392, pp. 294-299, 2017

T. Rakia, F. Gebali, H. C. Yang, and M. S. Alouini, Cross layer analysis of P2MP hybrid FSO/RF network, IEEE/OSA Journal of Optical Communications and Networking, vol. 9, no. 3, pp. 234-243, 2017.

J. Park, E. Lee, C.B. Chae, and G. Yoon, Impact of Pointing Errors on the Performance of Coherent Free-Space Optical Systems, IEEE Photonics Technology Letters, vol. 28, no. 2, pp. 181-184, 2016.

H. G. Sandalidis, N. D. Chatzidiamantis, and G. K. Karagiannidis, A Tractable Model for Turbulence- and Misalignment-Induced Fading in Optical Wireless Systems, IEEE Communications Letters, vol. 20, no. 9, pp. 1904-1907, 2016.

L. Li, Y. Huang, Q. Wang, and F. Yang, Noise adaptive fading Kalman filter for free-space laser communication beacon tracking, Applied Optics, vol. 55, no. 30, pp. 8486-8493, 2016.

T. Tsujimura, and K. Yoshida, Active free space optics systems for ubiquitous user networks, in Proc. Conf. Optoelectronic and Microelectronic Materials and Devices, pp. 197-200, 2004.

K. Tanaka, T. Tsujimura, K. Yoshida, K. Katayama, and Y. Azuma, Frame-loss-free Optical Line Switching System for In-service Optical Network, J. Lightwave Technology, pp. 539-546, 2009.

T. Tsujimura, K. Yoshida, and K. Tanaka, Length measurement for optical transmission line using interferometry, Interferometry, InTech, 2012.

K. Yoshida, K. Tanaka, T. Tsujimura, and Y. Azuma, Assisted Focus Adjustment for Free Space Optics System Coupling Single-Mode Optical Fibers, IEEE Trans. Industrial Electronics, vol. 60, pp. 5306-5314, 2013.

T. Tsujimura, K. Izumi, and K. Yoshida, Transmission Laser Beam Control Techniques for Active Free Space Optics Systems, E-Business and Telecommunications, Springer, pp.169-188, 2015.

Robert D. Guenther, Modern optics, John Wiley & Sons. Inc., 1990.




DOI: http://dx.doi.org/10.11601/ijates.v6i2.213

Refbacks

  • There are currently no refbacks.