Optical unmasking of spectrally overlapping RF signals.

When two signals having overlapping frequency content are received at the same time, they interfere to obstruct detection of the information carried by each individual signal. We introduce here a new nonlinear optoelectronic filtering technique that enables the ability to individually detect two concurrent and spectrally overlapping signals, even when the amplitude ratio between the signals is as high as 100,000. We demonstrate our system for application in steganography where we unveil the information carried by a hidden desired RF signal, while a dominant interferer signal is intentionally transmitted nearby and at the same frequency. Our signal recovery technique, which operates assuming no a priori knowledge of either signal, presents an additional pathway that can be used to control how information can be processed and communicated.

[1]  Ozgur Oyman.  Opportunistic scheduling and spectrum reuse in relay-based cellular networks , 2010, IEEE Transactions on Wireless Communications.

[2]  Jie Sun,et al.  Open Foundry Platform for High-performance Electronic-photonic Integration References and Links , 2022 .

[3]  Sushil Jajodia,et al.  Exploring steganography: Seeing the unseen , 1998 .

[4]  José Capmany,et al.  Integrated microwave photonics , 2013 .

[5]  José Capmany,et al.  Microwave photonics combines two worlds , 2007 .

[6]  S. Gee,et al.  High-Power, Low-Noise 1.5-μm Slab-Coupled Optical Waveguide (SCOW) Emitters: Physics, Devices, and Applications , 2011, IEEE Journal of Selected Topics in Quantum Electronics.

[7]  Siva Yegnanarayanan,et al.  A nonlinear optoelectronic filter for electronic signal processing , 2014, Scientific reports.

[8]  Ahmed M. Eltawil,et al.  All-Digital Self-Interference Cancellation Technique for Full-Duplex Systems , 2014, IEEE Transactions on Wireless Communications.

[9]  Andrew M. Weiner,et al.  Optical arbitrary waveform generation , 2010 .

[10]  D. Artz,et al.  Digital steganography: hiding data within data , 2001 .

[11]  Niels Provos,et al.  Hide and Seek: An Introduction to Steganography , 2003, IEEE Secur. Priv..

[12]  Paul R. Prucnal,et al.  Adaptive Optical Self-Interference Cancellation Using a Semiconductor Optical Amplifier , 2015, IEEE Photonics Technology Letters.

[13]  Vincent J. Urick,et al.  Nonlinear Optical Angle Modulation for Suppression of RF Interference , 2016, IEEE Transactions on Microwave Theory and Techniques.

[14]  J. Bowers,et al.  Hybrid Silicon Photonic Integrated Circuit Technology , 2013, IEEE Journal of Selected Topics in Quantum Electronics.

[15]  S. Yegnanarayanan,et al.  Super-Homogeneous Saturation of Microwave-Photonic Gain in Optoelectronic Oscillator Systems , 2012, IEEE Photonics Journal.

[16]  B. Kolner,et al.  Intermodulation distortion and compression in an integrated electrooptic modulator. , 1987, Applied optics.

[17]  Yiming Ma,et al.  A Method for Broadband Full-Duplex MIMO Radio , 2012, IEEE Signal Processing Letters.

[18]  Lisa M. Marvel,et al.  Spread spectrum image steganography , 1999, IEEE Trans. Image Process..

[19]  J. Lenz.  A review of magnetic sensors , 1990, Proc. IEEE.

[20]  Ross J. Anderson,et al.  On the limits of steganography , 1998, IEEE J. Sel. Areas Commun..

[21]  Vincent J. Urick,et al.  An Optical Technique for Radio Frequency Interference Mitigation , 2015, IEEE Photonics Technology Letters.

[22]  Kenneth E. Kolodziej,et al.  Multitap RF Canceller for In-Band Full-Duplex Wireless Communications , 2016, IEEE Transactions on Wireless Communications.

[23]  Sachin Katti,et al.  Full duplex radios , 2013, SIGCOMM.

[24]  R. C. Taber,et al.  High performance distributed Bragg reflector microwave resonator , 1997 .

[25]  Philip Levis,et al.  Applications of self-interference cancellation in 5G and beyond , 2014, IEEE Communications Magazine.

[26]  L. Maleki.  Sources: The optoelectronic oscillator , 2011 .

[27]  M. Kirchner,et al.  Generation of ultrastable microwaves via optical frequency division , 2011, 1101.3616.

[28]  Risto Wichman,et al.  In-Band Full-Duplex Wireless: Challenges and Opportunities , 2013, IEEE Journal on Selected Areas in Communications.

[29]  J.E. Bowers,et al.  Integrated Coherent Receivers for High-Linearity Microwave Photonic Links , 2008, Journal of Lightwave Technology.

[30]  Kevin Curran,et al.  Digital image steganography: Survey and analysis of current methods , 2010, Signal Process..