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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 2, Iss. 4 — Apr. 1, 1985
  • pp: 626–633

Measurement of the phase of a frequency-swept ultrashort optical pulse

Joshua E. Rothenberg and D. Grischkowsky  »View Author Affiliations


JOSA B, Vol. 2, Issue 4, pp. 626-633 (1985)
http://dx.doi.org/10.1364/JOSAB.2.000626


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Abstract

We show theoretically and confirm experimentally that, by propagating a frequency-swept ultrashort pulse through an ensemble of two-level systems, it is possible to measure the time-dependent relative phase of the pulse with respect to that of the impact-excited oscillating resonant polarization. The phase is obtained from the intensity modulation of the pulse as measured by a cross-correlation technique.

© 1985 Optical Society of America

Citation
Joshua E. Rothenberg and D. Grischkowsky, "Measurement of the phase of a frequency-swept ultrashort optical pulse," J. Opt. Soc. Am. B 2, 626-633 (1985)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-2-4-626


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References

  1. R. L. Fork, B. I. Greene, and C. V. Shank, "Generation of optical pulses shorter than 0.1 psec by colliding pulse mode locking," Appl. Phys. Lett. 38, 671 (1981).
  2. See, for example, J. M. Halbout and C. L. Tang, "Generation of 55-fsec optical pulses," IEEE J. Quantum Electron. QE-19, 487 (1983); W. Dietel, J. J. Fontaine, and J. C. Diels, "Intracavity pulse compression with glass: a new method of generating pulses shorter than 60 fsec," Opt. Lett. 8, 4 (1983); see also Ref. 7.
  3. J. A. Valdmanis and R. L. Fork, "Generation of optical pulses shorter than 30 fsec in a laser-balancing passive mode-locking with soliton-like pulse shaping," J. Opt. Soc. Am. A. 1, 1337(A) (1984).
  4. H. Nakatsuka, D. Grischkowsky, and A. C. Balant, "Nonlinear picosecond-pulse propagation through optical fibers with positive group velocity dispersion," Phys. Rev. Lett. 47, 910 (1981).
  5. B. Nikolaus and D. Grischkowsky, "90-fs tunable optical pulses obtained by two-stage pulse compression," Appl. Phys. Lett. 43, 228 (1983).
  6. C. V. Shank, R. L. Fork, R. Yen, R. H. Stolen, and W. J. Tomlinson, "Compression of femtosecond optical pulses," Appl. Phys. Lett. 40, 761 (1982).
  7. J. G. Fujimoto, A. M. Weiner, and E. P. Ippen, "Generation and measurement of optical pulses as short as 16 fs," Appl. Phys. Lett. 44, 832 (1984).
  8. J. M. Halbout and D. Grischkowsky, "12-femtosecond ultrashort optical pulse compression at a high repetition rate," Appl. Phys. Lett. 45, 1281 (1984).
  9. J. E. Rothenberg, D. Grischkowsky, and A. C. Balant, "Observation of the formation of the 0π pulse," Phys. Rev. Lett. 53, 552 (1984).
  10. J. C. Diels, W. Dietel, E. Dopel, J. Fontaine, I. C. McMichael, V. Rudolph, F. Simoni, R. Torti, H. Vanherzeele, and B. Wilhelmi, "Colliding pulse femtosecond lasers and applications to the measurement of optical parameters," in Ultrafast Phenomena IV, D. H. Auston and K. B. Eisenthal, eds. (Springer-Verlag, Berlin, 1984), p. 30.
  11. M. D. Crisp, "Propagation of small-area pulses of coherent light through a resonant medium," Phys. Rev. A 1, 1604 (1970).
  12. We note that this approach has the limitation that the time variations in the input-pulse intensity must be slower than the time scale on which the phase of the pulse changes.
  13. The vapor cell had two 3-mm-thick windows, which did not have a significant effect on the results. In general, the linearity of the system allows one conceptually to think of both windows being at the cell input, in which case they will have the effect of changing the frequency sweep rate of the input pulse by a small amount. In the experimental and the theoretical cases considered here, this effect is negligible.
  14. D. H. Auston, K. P. Cheung, J. A. Valdmanis, and D. A. Kleinman, "Čherenkov radiation from femtosecond optical pulses in electro-optic media," Phys. Rev. Lett. 53, 1555 (1984).

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