Proceedings Article

High speed visible light communication using blue GaN laser diodes

[+] Author Affiliations
S. Watson, S. Viola, G. Giuliano, A. E. Kelly

Univ. of Glasgow (United Kingdom)

S. P. Najda, P. Perlin, M. Leszczyński, P. Wisniewski, R. Czernecki, G. Targowski

TopGaN Ltd. (Poland)

T. Suski, L. Marona

Institute of High Pressure Physics (Poland)

M. A. Watson

AVoptics Ltd. (United Kingdom)

H. White, D. Rowe, L. Laycock

BAE Systems (United Kingdom)

Proc. SPIE 9991, Advanced Free-Space Optical Communication Techniques and Applications II, 99910A (October 21, 2016); doi:10.1117/12.2245495
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Open Access

From Conference Volume 9991

  • Advanced Free-Space Optical Communication Techniques and Applications II
  • Leslie Laycock; Henry J. White
  • Edinburgh, United Kingdom | September 26, 2016

abstract

GaN-based laser diodes have been developed over the last 20 years making them desirable for many security and defence applications, in particular, free space laser communications. Unlike their LED counterparts, laser diodes are not limited by their carrier lifetime which makes them attractive for high speed communication, whether in free space, through fiber or underwater. Gigabit data transmission can be achieved in free space by modulating the visible light from the laser with a pseudo-random bit sequence (PRBS), with recent results approaching 5 Gbit/s error free data transmission. By exploiting the low-loss in the blue part of the spectrum through water, data transmission experiments have also been conducted to show rates of 2.5 Gbit/s underwater. Different water types have been tested to monitor the effect of scattering and to see how this affects the overall transmission rate and distance. This is of great interest for communication with unmanned underwater vehicles (UUV) as the current method using acoustics is much slower and vulnerable to interception. These types of laser diodes can typically reach 50-100 mW of power which increases the length at which the data can be transmitted. This distance could be further improved by making use of high power laser arrays. Highly uniform GaN substrates with low defectivity allow individually addressable laser bars to be fabricated. This could ultimately increase optical power levels to 4 W for a 20-emitter array. Overall, the development of GaN laser diodes will play an important part in free space optical communications and will be vital in the advancement of security and defence applications. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

references

Schubert, E. F., [Light-emitting diodes], Cambridge University Press (2006)
Nakamura, S., Pearton, S. and Fasol, G., [The Blue Laser Diode], Springer (1997)
Tsonev, D., Videv, S. and Haas, H., "Towards a 100 Gb/s visible light wireless access network" Optics Express 23(2), 1627-1637 (2015)
Cisco, "Cisco Visual Networking Index: Forecast and Methodology, 2015-2020" Cisco White Paper (2015)
Lee, C., Zhang, C., Cantore, M., Farrell, R. M., Oh, S. H., Margalith, T., Speck, J. S., Nakamura, S., Bowers, J. E. and DenBaars, S. P., "4 Gbps direct modulation of 450 nm GaN laser for high-speed visible light communication" Optics Express 23(12), 16232-16237 (2015)
OSRAM, Available at: http://www.osram-os.com
TopGaN Ltd, Available at: http://www.topganlasers.com
Gawdi, Y. J., "Underwater Free Space Optics" Master’s thesis, North Carolina State University (2006)
Watson, M. A., Blanchard, P. M., Stace, C., Bhogal, P. K., White, H. J., Kelly, A. E., Watson, S., Valyrakis, M., Najda, S. P., Marona, L and Perlin, P., "Assessment of laser tracking and data transfer for underwater optical communications" Proc. SPIE Security and Defence 9248, 92480T-1-92480T-10 (2014)
Full text of this article:
Citation

S. Watson ; S. Viola ; G. Giuliano ; S. P. Najda ; P. Perlin ; T. Suski ; L. Marona ; M. Leszczyński ; P. Wisniewski ; R. Czernecki ; G. Targowski ; M. A. Watson ; H. White ; D. Rowe ; L. Laycock and A. E. Kelly
" High speed visible light communication using blue GaN laser diodes ", Proc. SPIE 9991, Advanced Free-Space Optical Communication Techniques and Applications II, 99910A (October 21, 2016); doi:10.1117/12.2245495; http://dx.doi.org/10.1117/12.2245495


Figures

Tables

Schubert, E. F., [Light-emitting diodes], Cambridge University Press (2006)
Nakamura, S., Pearton, S. and Fasol, G., [The Blue Laser Diode], Springer (1997)
Tsonev, D., Videv, S. and Haas, H., "Towards a 100 Gb/s visible light wireless access network" Optics Express 23(2), 1627-1637 (2015)
Cisco, "Cisco Visual Networking Index: Forecast and Methodology, 2015-2020" Cisco White Paper (2015)
Lee, C., Zhang, C., Cantore, M., Farrell, R. M., Oh, S. H., Margalith, T., Speck, J. S., Nakamura, S., Bowers, J. E. and DenBaars, S. P., "4 Gbps direct modulation of 450 nm GaN laser for high-speed visible light communication" Optics Express 23(12), 16232-16237 (2015)
OSRAM, Available at: http://www.osram-os.com
TopGaN Ltd, Available at: http://www.topganlasers.com
Gawdi, Y. J., "Underwater Free Space Optics" Master’s thesis, North Carolina State University (2006)
Watson, M. A., Blanchard, P. M., Stace, C., Bhogal, P. K., White, H. J., Kelly, A. E., Watson, S., Valyrakis, M., Najda, S. P., Marona, L and Perlin, P., "Assessment of laser tracking and data transfer for underwater optical communications" Proc. SPIE Security and Defence 9248, 92480T-1-92480T-10 (2014)
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