Secure thermal infrared communications using engineered blackbody radiation

The `THz Torch' concept was recently introduced as an ultra-low cost means of providing secure short-range wireless communications in the thermal infrared spectral range (10-100 THz). This technology exploits engineered blackbody radiation, by partitioning thermally-generated spectral noise power into pre-defined frequency channels; the energy in each channel is then independently pulsed modulated and transmitted. This technology can be further enhanced by multiplexing schemes, e.g. frequency division multiplexing (FDM) and frequency-hopping spread-spectrum (FHSS). In this paper, the end-to-end link budget analysis for a 4-channel `THz Torch' working demonstrator, operating over a short transmission range of 1 cm, is given for the first time. Mathematical modelling of the end-to-end wireless link is presented. In the analysis, different bias points for the source are considered and the corresponding RMS output voltages at the receivers are calculated. The predicted results show the capability for each channel, and will serve as a guide for further improving the overall performance of this multi-channel `THz Torch' system.

[1]  R. Carminati,et al.  Coherent emission of light by thermal sources , 2002, Nature.

[2]  Fangjing Hu,et al.  Improved ‘THz Torch’ technology for short-range wireless data transfer , 2013, 2013 IEEE International Wireless Symposium (IWS).

[3]  J. Federici,et al.  Review of terahertz and subterahertz wireless communications , 2010 .

[4]  T Thayaparan,et al.  Noise Radar Technology Basics , 2006 .

[5]  D. O'Brien,et al.  A Gigabit/s Indoor Wireless Transmission Using MIMO-OFDM Visible-Light Communications , 2013, IEEE Photonics Technology Letters.

[6]  Fangjing Hu,et al.  Ultra-low cost ubiquitous THz security systems , 2011, Asia-Pacific Microwave Conference 2011.

[7]  Harald Haas,et al.  Indoor optical wireless communication: potential and state-of-the-art , 2011, IEEE Communications Magazine.

[8]  阎跃鹏,et al.  Secure thermal infrared communications using engineered blackbody radiation , 2014 .

[9]  Arjan Meijerink,et al.  Novel wireless modulation technique based on noise , 2004 .

[10]  Fangjing Hu,et al.  Technology demonstrators for low-cost terahertz engineering , 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

[11]  D. O’brien,et al.  100-Mb/s NRZ Visible Light Communications Using a Postequalized White LED , 2009, IEEE Photonics Technology Letters.

[12]  Ram M. Narayanan,et al.  UWB Noise-OFDM Netted Radar: Physical Layer Design and Analysis , 2011, IEEE Transactions on Aerospace and Electronic Systems.

[13]  Jeffrey B. Carruthers,et al.  Wireless infrared communications , 2003, Proc. IEEE.

[14]  Thomas Zwick,et al.  Wireless sub-THz communication system with high data rate enabled by RF photonics and active MMIC technology , 2014 .

[15]  Fangjing Hu,et al.  Ultra-low cost THz short-range wireless link , 2011, 2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies.

[16]  Masao Nakagawa,et al.  Fundamental analysis for visible-light communication system using LED lights , 2004, IEEE Transactions on Consumer Electronics.

[17]  K. Habel,et al.  803 Mbit/s visible light WDM link based on DMT modulation of a single RGB LED luminary , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.