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Optics Letters

Optics Letters

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  • Vol. 29, Iss. 11 — Jun. 1, 2004
  • pp: 1203–1205

Development of an amplitude-modulated Nd:YAG pulsed laser with modulation frequency tunability up to 60 GHz by dual seed injection

Daniel C. Kao, Timothy J. Kane, and Linda J. Mullen  »View Author Affiliations


Optics Letters, Vol. 29, Issue 11, pp. 1203-1205 (2004)
http://dx.doi.org/10.1364/OL.29.001203


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Abstract

A pulsed, modulation frequency tunable, frequency-doubled Nd:YAG laser has been devised for use in target detection through turbid media. A modulated pulse laser radar system offers many advantages in target detection, such as significant signal contrast enhancement, compared with conventional remote-sensing systems. By implementation of the dual-longitudinal-mode seed injection technique, the modulation frequency of the designed Q -switched laser can be tuned from 250 MHz up to 60 GHz in steps of 250 MHz while maintaining a modulation depth of at least 75%. This provides the ability to explore propagation and scattering properties further at previously unattainable high RF modulation frequencies.

© 2004 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.3460) Lasers and laser optics : Lasers

Citation
Daniel C. Kao, Timothy J. Kane, and Linda J. Mullen, "Development of an amplitude-modulated Nd:YAG pulsed laser with modulation frequency tunability up to 60 GHz by dual seed injection," Opt. Lett. 29, 1203-1205 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-11-1203


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References

  1. V. M. Contarino, P. R. Herczfeld, and L. J. Mullen, “Modulator LIDAR system,” U.S. patent 5,822,047 (October 13, 1998).
  2. R. Pellen, R. Olivard, Y. Guern, J. Cairou, and J. Lotrian, J. Phys. D 34, 1122 (2001).
  3. L. J. Mullen, V. M. Contarino, and P. R. Herczfeld, IEEE Trans. Microwave Theory Tech. 44, 2703 (1996).
  4. T. D. Raymond and A. V. Smith, IEEE J. Quantum Electron. 31, 1734 (1995).
  5. W. Koechner, Solid State Laser Engineering, 5th ed. (Springer-Verlag, New York, 1999), pp. 195–288.
  6. A. E. Siegman and V. Evtuhov, Appl. Opt. 4, 142 (1965).
  7. L. J. Mullen E. Zege, I. Kotsev, and A. S. Prikhach, Proc. SPIE 4488, 25 (2002).

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