Abstract

<p>A continuous optical maser has been operated at five wavelengths in the near infrared. Such a maser oscillator consists of a medium having optical amplification at the wavelength of interest and a Fabry-Perot interferometer as a resonant cavity.</p><p>The optical amplification is provided by maser action in a discharge through a mixture of helium and neon gas. The Fabry-Perot interferometer is constructed within the gas volume using two very flat, and highly reflecting, parallel, silica plates.</p><p>The transmission of the Fabry-Perot plates, although small, allows a beam to pass through each end window, with four milliwatts of continuous output power in the strongest transition at 1.153-µ wavelength.</p><p>Examination of the beam shows that it is almost diffraction limited for its one-centimeter diameter. The spectral line shape at each transition is made up of three or more components each less than a few hundred cycles in width separated by the spacing of orders in the interferometer.</p>

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  1. A. Javan, W. R. Bennett, Jr., and D. R. Herriott, Phys. Rev. Letters 6, 106 (1961).
  2. A. Javan, Phys. Rev. Letters 3, 87 (1959).
  3. W. R. Bennett, Jr., Proceedings of the 2nd Quantum Electronics Conference (to be published).
  4. John Strong, Proceedings in Experimental Physics (Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1938), p. 376.
  5. H. E. Bennett and W. F. Koehler, J. Opt. Soc. Am. 50, 1 (1960).
  6. D. R. Herriott, J. Opt. Soc. Am. 51, 1142 (1961).
  7. A. T. Forrester, R. A. Gudmundsen, and P. O. Johnson, Phys. Rev. 99, 1691 (1955).
  8. A. G. Fox and T. Li, Bell System Tech. J. 40, 453 (1961).

Bennett, H. E.

H. E. Bennett and W. F. Koehler, J. Opt. Soc. Am. 50, 1 (1960).

Bennett, Jr., W. R.

A. Javan, W. R. Bennett, Jr., and D. R. Herriott, Phys. Rev. Letters 6, 106 (1961).

W. R. Bennett, Jr., Proceedings of the 2nd Quantum Electronics Conference (to be published).

Forrester, A. T.

A. T. Forrester, R. A. Gudmundsen, and P. O. Johnson, Phys. Rev. 99, 1691 (1955).

Fox, A. G.

A. G. Fox and T. Li, Bell System Tech. J. 40, 453 (1961).

Gudmundsen, R. A.

A. T. Forrester, R. A. Gudmundsen, and P. O. Johnson, Phys. Rev. 99, 1691 (1955).

Herriott, D. R.

A. Javan, W. R. Bennett, Jr., and D. R. Herriott, Phys. Rev. Letters 6, 106 (1961).

D. R. Herriott, J. Opt. Soc. Am. 51, 1142 (1961).

Javan, A.

A. Javan, W. R. Bennett, Jr., and D. R. Herriott, Phys. Rev. Letters 6, 106 (1961).

A. Javan, Phys. Rev. Letters 3, 87 (1959).

Johnson, P. O.

A. T. Forrester, R. A. Gudmundsen, and P. O. Johnson, Phys. Rev. 99, 1691 (1955).

Koehler, W. F.

H. E. Bennett and W. F. Koehler, J. Opt. Soc. Am. 50, 1 (1960).

Li, T.

A. G. Fox and T. Li, Bell System Tech. J. 40, 453 (1961).

Strong, John

John Strong, Proceedings in Experimental Physics (Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1938), p. 376.

Other

A. Javan, W. R. Bennett, Jr., and D. R. Herriott, Phys. Rev. Letters 6, 106 (1961).

A. Javan, Phys. Rev. Letters 3, 87 (1959).

W. R. Bennett, Jr., Proceedings of the 2nd Quantum Electronics Conference (to be published).

John Strong, Proceedings in Experimental Physics (Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1938), p. 376.

H. E. Bennett and W. F. Koehler, J. Opt. Soc. Am. 50, 1 (1960).

D. R. Herriott, J. Opt. Soc. Am. 51, 1142 (1961).

A. T. Forrester, R. A. Gudmundsen, and P. O. Johnson, Phys. Rev. 99, 1691 (1955).

A. G. Fox and T. Li, Bell System Tech. J. 40, 453 (1961).

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