Abstract

A helium–neon laser amplifier operating at 1.15 μ is described A discharge tube of rectangular cross section was employed, allowing a large cross section of discharge without impairing its efficiency for laser action. The optical arrangement provided multiple transits of the signal beam through the discharge, enabling the use of long optical paths. A low-level gain of 400 and a saturation output power of 20 mW were obtained. The output power was limited by inefficient use of the discharge volume. The system was also operated as an oscillator and a pulsed amplifier.

© 1965 Optical Society of America

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References

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  1. A. Javan, Advances in Quantum Electronics, J. R. Singer, ed. (Columbia University Press, New York, 1961), pp. 18–27.
  2. A. D. White, E. I. Gordon, Appl. Phys. Letters 3, 197 (1963).
    [CrossRef]
  3. E. I. Gordon, A. D. White, Appl. Phys. Letters 3, 199 (1963).
    [CrossRef]
  4. J. U. White, J. Opt. Soc. Am. 32, 285 (1942).
    [CrossRef]
  5. H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
    [CrossRef]
  6. H. A. H. Boot, D. M. Clunie, Nature 197, 173 (1963).
    [CrossRef]
  7. H. A. H. Boot, D. M. Clunie, R. S. A. Thorn, Nature 198, 773 (1963).
    [CrossRef]

1963

A. D. White, E. I. Gordon, Appl. Phys. Letters 3, 197 (1963).
[CrossRef]

E. I. Gordon, A. D. White, Appl. Phys. Letters 3, 199 (1963).
[CrossRef]

H. A. H. Boot, D. M. Clunie, Nature 197, 173 (1963).
[CrossRef]

H. A. H. Boot, D. M. Clunie, R. S. A. Thorn, Nature 198, 773 (1963).
[CrossRef]

1948

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

1942

Bernstein, H. J.

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

Boot, H. A. H.

H. A. H. Boot, D. M. Clunie, Nature 197, 173 (1963).
[CrossRef]

H. A. H. Boot, D. M. Clunie, R. S. A. Thorn, Nature 198, 773 (1963).
[CrossRef]

Clunie, D. M.

H. A. H. Boot, D. M. Clunie, R. S. A. Thorn, Nature 198, 773 (1963).
[CrossRef]

H. A. H. Boot, D. M. Clunie, Nature 197, 173 (1963).
[CrossRef]

Gordon, E. I.

A. D. White, E. I. Gordon, Appl. Phys. Letters 3, 197 (1963).
[CrossRef]

E. I. Gordon, A. D. White, Appl. Phys. Letters 3, 199 (1963).
[CrossRef]

Herzberg, G.

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

Javan, A.

A. Javan, Advances in Quantum Electronics, J. R. Singer, ed. (Columbia University Press, New York, 1961), pp. 18–27.

Thorn, R. S. A.

H. A. H. Boot, D. M. Clunie, R. S. A. Thorn, Nature 198, 773 (1963).
[CrossRef]

White, A. D.

A. D. White, E. I. Gordon, Appl. Phys. Letters 3, 197 (1963).
[CrossRef]

E. I. Gordon, A. D. White, Appl. Phys. Letters 3, 199 (1963).
[CrossRef]

White, J. U.

Appl. Phys. Letters

A. D. White, E. I. Gordon, Appl. Phys. Letters 3, 197 (1963).
[CrossRef]

E. I. Gordon, A. D. White, Appl. Phys. Letters 3, 199 (1963).
[CrossRef]

J. Chem. Phys.

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

J. Opt. Soc. Am.

Nature

H. A. H. Boot, D. M. Clunie, Nature 197, 173 (1963).
[CrossRef]

H. A. H. Boot, D. M. Clunie, R. S. A. Thorn, Nature 198, 773 (1963).
[CrossRef]

Other

A. Javan, Advances in Quantum Electronics, J. R. Singer, ed. (Columbia University Press, New York, 1961), pp. 18–27.

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Figures (3)

Fig. 1
Fig. 1

Schematic arrangement of optical system and discharge tube. Path traced by beam is 0A1A′2A3A′P.

Fig. 2
Fig. 2

cw amplifier characteristics. Output power vs input power for 45.6-m, 53.2-m, 60.8-m, and 68.4-m path length.

Fig. 3
Fig. 3

cw amplifier characteristics. Gain in discharge vs input power for 45.6-m and 68.4-m path length.

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