Hybrid Optical Beam-Former in Receiver Mode

Pham Q. Thai, Arokiaswami Alphones

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DOI: 10.4236/opj.2011.13022                

Abstract

In this paper, an optical beam-former in receiving mode has been proposed and experimentally demonstrated. The requirement in system's hardware has been dramatically reduced using a hybrid approach between dispersive and non-dispersive delay. The proposed system is capable of supporting RF signals from L-band to X-band, with large coverage and strong robustness against the grating's group delay ripples.

Keywords

Chirped Fiber Grating, Group Delay Ripple, Microwave Photonics, Optical Phased Array Antennas

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	N. A. Riza, Selected Papers on Photonic Control Systems for Phased Array Antennas, 694 SPIE Optical Engineering Press, 1997.
[2]	D. B. Hunter, M. E. Parker and J. L. Dexter, “Demonstration of a Continuously Variable True-Time Delay Beamformer Using a Multichannel Chirped Fiber Grating,” IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 2, 2006, pp. 861-867. doi:10.1109/TMTT.2005.863056
[3]	M. Y. Frankel, P. J. Matthews and R. D. Esman, “Two- Dimensional Fiber-Optic Control of a True Time-Steered Array Transmitter,” IEEE Transactions on Microwave Theory and Techniques, Vol. 44, No. 12, 1996, pp. 2696- 2702. doi:10.1109/22.554632
[4]	N. A. Riza and N. Madamopoulos, “Photonic Time Delay Beamforming Architectures Using Polarization Switching Arrays,” In: D. R. Pape, Ed., Advances in Optical Information Processing VII, Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie), SPIE— International Society Optical Engineering, Bellingham, 1996, pp. 186-197.
[5]	N. A. Riza and N. Madamopoulos, “Phased-Array Antenna, Maximum-Compression, Reversible Photonic Beam Former with Ternary Designs and Multiple Wavelengths,” Applied Optics, Vol. 36, No. 5, 1997, pp. 983- 996. doi:10.1364/AO.36.000983
[6]	N. A. Riza, M. A. Arain and S. A. Khan, “Hybrid Analog-Digital Variable Fiber-Optic Delay Line,” Journal of Lightwave Technology, Vol. 22, No. 2, 2004, pp. 619- 624. doi:10.1109/JLT.2004.824383
[7]	B. M. Jung and H. P. Yao, “A Two-Dimensional Optical True Time-Delay Beamformer Consisting of a Fiber Bragg Grating Prism and Switch-Based Fiber-Optic Delay Lines,” IEEE Photonics Technology Letters, Vol. 21, No. 9-12, 2009, pp. 627-629. doi:10.1109/LPT.2009.2015275
[8]	P. Q. Thai, A. Alphones and D. R. Lim, “A Novel Simplified Dual Beam-Former Using Multichannel Chirped Fiber Grating and Tunable Optical Delay Lines,” Journal of Lightwave Technology, Vol. 26, No. 13-16, 2008, pp. 2629-2634. doi:10.1109/JLT.2008.927152
[9]	P. Q. Thai and A. Alphones, “Hybrid Optical Beamformers and Their Robustness Against Group Delay Ripples Errors,” IEEE Topical Meeting on Microwave Photonics (MWP), Montreal, 5-9 October 2010, pp. 276-279.
[10]	A. Alphones and T. P. Quang, “Hybrid Approach for Optical Beamforming for Phased Array,” Microwave Conference Proceedings (APMC), Asia-Pacific 2010, Singapore City, 7-10 December 2010, pp. 311-317.
[11]	P. Q. Thai, A. Alphones and D. R. Lim, “Limitations by Group Delay Ripple on Optical Beam-Forming With Chirped Fiber Grating,” Journal of Lightwave Technology, Vol. 27, No. 24, 2009, pp. 5619-5625. doi:10.1109/JLT.2009.2032786
[12]	R. Rotman, O. Raz and M. Tur, “Requirements for True Time Delay Imaging Systems with Photonic Components,” IEEE International Symposium on Phased Array Systems and Technology 2003, New York, 14-17 October 2003, pp. 193-198.
[13]	R. Soref, “Optical Dispersion Technique for Time-Delay Beam Steering,” Applied Optics, Vol. 31, No. 35, 1992, pp. 7395-7397. doi:10.1364/AO.31.007395
[14]	J. Capmany, B. Ortega and D. Pastor, “A Tutorial on Microwave Photonic Filters,” Journal of Lightwave Technology, Vol. 24, No. 1, 2006, pp. 201-229. doi:10.1109/JLT.2005.860478
[15]	J. Q. Zhou, S. Aditya, P. Shum, L. Xia and B. P. Parhusip, “Wide-Range Continuously Tunable Microwave Pho- Tonic Filter Using High-Birefringence Linearly Chirped Fiber Bragg Grating and Polarization Beamsplitters,” Optical Engineering, Vol. 48, No. 1, 2009, Article ID: 010502.
[16]	M. Skolnik, “Radar Handbook,” 3rd Edition, McGraw- Hill Professional, Boston, 2008.
[17]	A. Kawalec, C. Lesnik, W. Komomiczak, W. Czamecki and J. Pietrasiniski, “Influence of the Displacement Effect on Compressed LFM Signal Parameters,” In: C. A. Brebbia and G. M. Carlomagno, Eds., Computational Methods and Experimental Measurements XIII, Wit Transactions on Modelling and Simulation, 2007, pp. 769-778.
[18]	S. Darlington, W. J. Albersheim and A. C. Price, “The Theory and Design of Chirp Radars,” The Bell System Technical Journal, Vol. 39, No. 4, 1960, pp. 745-802.