Abstract

We show experimentally that the combination of soft-edged gain and index guiding can lead to resonant excess quantum noise. Resonances with excess noise factors close to 100 are observed in end-pumped Nd3+:YVO4 lasers for cavity lengths in which two modes experience similar gain. An associated increase in the relaxation oscillation damping rate demonstrates that the fluctuation enhancement is indeed caused by excess quantum noise and not by dynamic instabilities.

© 2003 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. J. J. Zayhowski and A. Mooradian, Opt. Lett. 14, 24 (1989).
    [CrossRef] [PubMed]
  2. K. Petermann, IEEE J. Quantum Electron. 15, 566 (1979).
    [CrossRef]
  3. A. E. Siegman, Phys. Rev. A 39, 1264 (1989).
    [CrossRef] [PubMed]
  4. Y.-J. Cheng, C. G. Fanning, and A. E. Siegman, Phys. Rev. Lett. 77, 627 (1996).
    [CrossRef] [PubMed]
  5. N. J. van Druten, M. P. van Exter, and J. P. Woerdman, Opt. Lett. 26, 1176 (2001).
    [CrossRef]
  6. N. J. van Druten, S. S. R. Oemrawsingh, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, J. Opt. Soc. Am. B 18, 1793 (2001).
    [CrossRef]
  7. N. J. van Druten, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, Phys. Rev. A 62, 053808 (2000).
    [CrossRef]
  8. Y. Lien, “Intensity dynamics of slow-inversion lasers,” Ph.D. dissertation (Universiteit Leiden, Leiden, The Netherlands, 2002).

2001 (2)

2000 (1)

N. J. van Druten, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, Phys. Rev. A 62, 053808 (2000).
[CrossRef]

1996 (1)

Y.-J. Cheng, C. G. Fanning, and A. E. Siegman, Phys. Rev. Lett. 77, 627 (1996).
[CrossRef] [PubMed]

1989 (2)

1979 (1)

K. Petermann, IEEE J. Quantum Electron. 15, 566 (1979).
[CrossRef]

Cheng, Y.-J.

Y.-J. Cheng, C. G. Fanning, and A. E. Siegman, Phys. Rev. Lett. 77, 627 (1996).
[CrossRef] [PubMed]

Fanning, C. G.

Y.-J. Cheng, C. G. Fanning, and A. E. Siegman, Phys. Rev. Lett. 77, 627 (1996).
[CrossRef] [PubMed]

Lien, Y.

N. J. van Druten, S. S. R. Oemrawsingh, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, J. Opt. Soc. Am. B 18, 1793 (2001).
[CrossRef]

N. J. van Druten, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, Phys. Rev. A 62, 053808 (2000).
[CrossRef]

Y. Lien, “Intensity dynamics of slow-inversion lasers,” Ph.D. dissertation (Universiteit Leiden, Leiden, The Netherlands, 2002).

Mooradian, A.

Oemrawsingh, S. S. R.

Petermann, K.

K. Petermann, IEEE J. Quantum Electron. 15, 566 (1979).
[CrossRef]

Serrat, C.

N. J. van Druten, S. S. R. Oemrawsingh, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, J. Opt. Soc. Am. B 18, 1793 (2001).
[CrossRef]

N. J. van Druten, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, Phys. Rev. A 62, 053808 (2000).
[CrossRef]

Siegman, A. E.

Y.-J. Cheng, C. G. Fanning, and A. E. Siegman, Phys. Rev. Lett. 77, 627 (1996).
[CrossRef] [PubMed]

A. E. Siegman, Phys. Rev. A 39, 1264 (1989).
[CrossRef] [PubMed]

van Druten, N. J.

van Exter, M. P.

Woerdman, J. P.

Zayhowski, J. J.

IEEE J. Quantum Electron. (1)

K. Petermann, IEEE J. Quantum Electron. 15, 566 (1979).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Lett. (2)

Phys. Rev. A (2)

A. E. Siegman, Phys. Rev. A 39, 1264 (1989).
[CrossRef] [PubMed]

N. J. van Druten, Y. Lien, C. Serrat, M. P. van Exter, and J. P. Woerdman, Phys. Rev. A 62, 053808 (2000).
[CrossRef]

Phys. Rev. Lett. (1)

Y.-J. Cheng, C. G. Fanning, and A. E. Siegman, Phys. Rev. Lett. 77, 627 (1996).
[CrossRef] [PubMed]

Other (1)

Y. Lien, “Intensity dynamics of slow-inversion lasers,” Ph.D. dissertation (Universiteit Leiden, Leiden, The Netherlands, 2002).

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.


Figures (3)

Fig. 1
Fig. 1

Average output intensity as a function of cavity detuning. Here ΔL is the change in cavity length and λat is the spontaneous emission wavelength, while ΔL=0 is the point at which maximum output is observed. Tuning ranges A1, A2, A3, B, and C are discussed in the text. The top curve is measured at M=5.0, and the bottom curve at M=3.0. Inset, cavity setup. The Gaussian pump beam (dotted curve) is tightly focused compared with the purely index-guided mode (dashed curve).

Fig. 2
Fig. 2

Reduced factorial moment Q2 versus output power Pout for a pump power (a) M=5 and (b) M=3. The points A1, A2, and A3 correspond to the same regimes as outlined in Fig. 1. The curves represent Eq. (1) with different K factors: (i) K=1, (ii) K=4, (iii) K=16, (iv) K=64.

Fig. 3
Fig. 3

Intensity fluctuations rf spectra of the laser at M=5 for an output power of Pout=6.7 mW. (a) A1 segment. (b) A3 segment, i.e., a longer cavity and closer to the mode crossing.

Equations (1)

Equations on this page are rendered with MathJax. Learn more.

Q20γnγn+γNL1+βw,ΔωKγγLLn02-1,

Metrics