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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 2 — Jan. 10, 2006
  • pp: 343–352

Multigigahertz range-Doppler correlative signal processing in optical memory crystals

Todd L. Harris, Kristian D. Merkel, R. Krishna Mohan, Tiejun Chang, Zachary Cole, Andy Olson, and Wm. Randall Babbitt  »View Author Affiliations

Applied Optics, Vol. 45, Issue 2, pp. 343-352 (2006)

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Analog optical signal processing of complex radio-frequency signals for range-Doppler radar information is theoretically described and experimentally demonstrated using crystalline optical memory materials and off-the-shelf photonic components. A model of the range-Doppler processing capability of the memory material for the case of single-target detection is presented. Radarlike signals were emulated and processed by the memory material; they consisted of broadband ( > 1 GHz ) , spread-spectrum, pseudorandom noise sequences of 512 bits in length, which were binary phase-shift keyed on a 1.9 GHz carrier and repeated at 100 kHz over 7.5 ms . Delay (range) resolution of 8 ns and Doppler resolution of 130 Hz over 100 kHz were demonstrated.

© 2006 Optical Society of America

OCIS Codes
(070.4550) Fourier optics and signal processing : Correlators
(090.7330) Holography : Volume gratings

ToC Category:
Fourier optics and signal processing

Todd L. Harris, Kristian D. Merkel, R. Krishna Mohan, Tiejun Chang, Zachary Cole, Andy Olson, and Wm. Randall Babbitt, "Multigigahertz range-Doppler correlative signal processing in optical memory crystals," Appl. Opt. 45, 343-352 (2006)

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  1. Z. Cole, T. Böttger, R. Krishna Mohan, R. Reibel, W. R. Babbitt, R. L. Cone, and K. D. Merkel, "Coherent integration of 0.5 GHz spectral holograms at 1536 nm using dynamic biphase codes," Appl. Phys. Lett. 81, 3525-3527 (2002). [CrossRef]
  2. K. D. Merkel, R. Krishna Mohan, Z. Cole, T. Chang, A. Olson, and W. R. Babbitt, "Multi-gigahertz radar range processing of baseband and RF carrier modulated signals in Tm:YAG," J. Lumin. 107, 62-74 (2004). [CrossRef]
  3. T. L. Harris, Wm. R. Babbitt, K. D. Merkel, R. Krishna Mohan, Z. Cole, and A. Olson, "Multigigahertz range-Doppler correlative processing in crystals," in Advanced Optical and Quantum Memories and Computing, H. J. Coufal and Z. V. Hasan, eds., Proc. SPIE 5362, 31-42 (2004).
  4. K. D. Merkel, R. K. Mohan, Z. Cole, R. R. Reibel, T. L. Harris, T. Chang, and W. R. Babbitt, "Analog optical signal processing of baseband codes in Tm:YAG up to 10 Gb/s," in Proceedings of the IEEE International Topical Meeting on Microwave Photonics (IEEE, 2004), pp. 138-141.
  5. R. Krishna Mohan, Z. Cole, R. R. Reibel, T. Chang, K. D. Merkel, Wm. R. Babbitt, M. Colice, F. Schlottau, and K. H. Wagner, "Microwave spectral analysis paper using optical spectral hole burning," in Proceedings of the 2004 IEEE International Topical Meeting on Microwave Photonics (IEEE, 2004), pp. 24-27.
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  9. J. C. Toomay, Radar Principles for the Non-Specialist, 2nd ed. (SciTech, 1998).
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  11. T. Chang, R. Krishna Mohan, M. Tian, T. L. Harris, W. R. Babbitt, and K. D. Merkel, "Frequency-chirped readout of spatial-spectral absorption features," Phys. Rev. A 70, 063803 (2004). [CrossRef]
  12. R. R. Reibel, Z. W. Barber, M. Tian, W. R. Babbitt, Z. Cole, and K. D. Merkel, "Amplification of high-bandwidth phase-modulated signals at 793 nm," J. Opt. Soc. Am. B 19, 2315-2321 (2002). [CrossRef]
  13. N. M. Strickland, P. B. Sellin, Y. Sun, J. L. Carlsten, and R. L. Cone, "Laser frequency stabilization using regenerative spectral hole burning," Phys. Rev. B 62, 1473-1476 (2000). [CrossRef]
  14. T. Chang, M. Tian, R. Krishna Mohan, C. Renner, K. D. Merkel, and W. R. Babbitt, "Recovery of spectral features readout with frequency-chirped laser fields," Opt. Lett. 30, 1129-1131 (2005). [CrossRef] [PubMed]
  15. P. C. D. Hobbs, "Ultrasensitive laser measurements without tears," Appl. Opt. 36, 903-920 (1997). [CrossRef] [PubMed]

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