Abstract

We show that there is a simple correlation between the modulation transfer function (MTF) of alexandrite laser rods and the thresholds of these rods as cw lasers. Thus the MTF provides a novel and important way to evaluate material (before or after fabrication) for use in solid-state lasers. This approach should be generally applicable to all solid-state laser materials.

© 1986 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. O. Kafri, Opt. Lett. 5, 555 (1980).
    [CrossRef] [PubMed]
  2. Z. Karny, S. Lavi, O. Kafri, Opt. Lett. 8, 409 (1983).
    [CrossRef] [PubMed]
  3. D. F. Heller, T. Chin, Opt. Lett. (to be published).
  4. E. Hecht, A. Zajac, Optics (Addison-Wesley, Reading, Mass., 1974), pp. 420 ff.
  5. I. Glatt, A. Livnat, O. Kafri, J. Opt. Soc. Am. A 2, 107 (1985).
    [CrossRef]
  6. H. Samelson, T. Chin, O. Kafri, D. F. Heller, Opt. Lett. (to be published).

1985

1983

1980

Chin, T.

D. F. Heller, T. Chin, Opt. Lett. (to be published).

H. Samelson, T. Chin, O. Kafri, D. F. Heller, Opt. Lett. (to be published).

Glatt, I.

Hecht, E.

E. Hecht, A. Zajac, Optics (Addison-Wesley, Reading, Mass., 1974), pp. 420 ff.

Heller, D. F.

D. F. Heller, T. Chin, Opt. Lett. (to be published).

H. Samelson, T. Chin, O. Kafri, D. F. Heller, Opt. Lett. (to be published).

Kafri, O.

Karny, Z.

Lavi, S.

Livnat, A.

Samelson, H.

H. Samelson, T. Chin, O. Kafri, D. F. Heller, Opt. Lett. (to be published).

Zajac, A.

E. Hecht, A. Zajac, Optics (Addison-Wesley, Reading, Mass., 1974), pp. 420 ff.

J. Opt. Soc. Am. A

Opt. Lett.

Other

D. F. Heller, T. Chin, Opt. Lett. (to be published).

E. Hecht, A. Zajac, Optics (Addison-Wesley, Reading, Mass., 1974), pp. 420 ff.

H. Samelson, T. Chin, O. Kafri, D. F. Heller, Opt. Lett. (to be published).

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 (5)

Fig. 1
Fig. 1

Experimental arrangement for measuring laser input–output characteristics and threshold power.

Fig. 2
Fig. 2

Experimental arrangement for measuring the MTF using moiré deflectometry.

Fig. 3
Fig. 3

Intensity profiles of the moiré fringes from a, the reference aperture alone; b, an alexandrite laser rod of good optical quality ( n = 1.1); c, an alexandrite laser rod of poorer optical quality ( n = 1.5). In these figures, n is determined from the average of contrast ratios of the central six fringes. Slight fringe pattern asymmetries in a are due to slight optical misalignment; other slight irregularities are produced by digitization.

Fig. 4
Fig. 4

Pth and n as functions of Cr3+ concentration.

Fig. 5
Fig. 5

Threshold power as a function of n for several 5-mm-diameter alexandrite laser rods.

Equations (5)

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

M = ( I max - I min ) / ( I max + I min ) ,
n = δ Ω / δ Ω D L ,
Δ = m p 2 / λ ,
M = 1 - ( n λ Δ ) / ( p a ) ,
n = ( 1 - M ) / ( 1 - M ref ) .

Metrics