Abstract

Under the undepleted-pump approximation, the conversion efficiency and bandwidth , based on quasi-phase-matching (QPM) difference frequency generation (DFG), are theoretically studied in detail and their expressions are obtained. The theoretical results show that, for the uniform grating, logarithmically increases with L, whereas decreases under the perfect phase matching. Contrarily, when reaches the minimum, the bandwidth , which is independent of the second-order nonlinearity, the pump, and the signal power, reaches the maximum under the imperfect phase matching. The expression of for the arbitrary chirp QPM grating in the typical DFG process is obtained in this paper for the first time. Optimized examples for two-, three-, and four-segment chirp grating are given, respectively. The numerically optimized results show that both the pump and signal bandwidth can apparently be widened in the chirp grating although may decrease a little, and that, with the adding of segment numbers, can increase.

[IEEE ]

PDF Article

References

  • View by:
  • |

  1. S. J. B. Yoo, "Wavelength conversion technologies for WDM network applications", J. Lightwave Technol., vol. 14, pp. 955-966, June 1996.
  2. M. Asghari, I. H. White and R. V. Penty, "Wavelength conversion using semiconductor optical amplifiers", J. Lightwave Technol., vol. 15, pp. 1181-1190, July 1997.
  3. D. Hofmann, G. Schreiber, C. Haase, H. Herrmann, W. Grundkotter, R. Ricken and W. Sohler, "Quasiphase-matched difference-frequency generation in periodically poled Ti: LiNbO3 channel waveguides", Opt. Lett., vol. 24, pp. 896-898, 1999.
  4. G. D. Miller, R. G. Batchke, W. M. Tulloch, D. K. Weise, M. M. Fejer and R. L. Beyer, "42%-efficient single-pass cw second-harmonic generation in periodically poled lithium niobate", Opt. Lett., vol. 22, pp. 1834-1836, 1997.
  5. Y. Chiu, U. Gopalan, M. J. Kawas, T. E. Schlesinger, D. D. Stancil and W. P. Risk, "Integrated optical device with second-harmonic generator, electrooptic, electrooptic lens and electrooptic scanner in LiTaO3", J. Lightwave Technol., vol. 17, pp. 462-468, Mar. 1999.
  6. M. Pierrou, F. Laureu, H. Karlsson, T. Kellner, C. Czeranowsky and G. Huber, "Generation of 740mW of blue light by intracavity frequency doubling with a quasiphase-matched KTiOPL4 crystal", Opt. Lett., vol. 24, pp. 205-207, 1999.
  7. K. Mizuuchi and K. Yamamoto, "Waveguide second-harmonic generation device with broaden flat quasiphase-matching response by use of a grating structure with located phase shifts", Opt. Lett., vol. 23, pp. 1880 -1882, 1998.

J. Lightwave Technol.

S. J. B. Yoo, "Wavelength conversion technologies for WDM network applications", J. Lightwave Technol., vol. 14, pp. 955-966, June 1996.

M. Asghari, I. H. White and R. V. Penty, "Wavelength conversion using semiconductor optical amplifiers", J. Lightwave Technol., vol. 15, pp. 1181-1190, July 1997.

Y. Chiu, U. Gopalan, M. J. Kawas, T. E. Schlesinger, D. D. Stancil and W. P. Risk, "Integrated optical device with second-harmonic generator, electrooptic, electrooptic lens and electrooptic scanner in LiTaO3", J. Lightwave Technol., vol. 17, pp. 462-468, Mar. 1999.

Opt. Lett.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.