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Spectrophone stabilization and offset tuning of a carbon dioxide waveguide laser

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3 Author(s)
M. Kavaya ; California Institute of Technology, Pasadena, CA, USA ; R. Menzies ; U. Oppenheim

A sensitive spectrophone containing CO2gas is incorporated into a feedback loop to stabilize the frequency of a CO2waveguide laser. First or second harmonic detection combined with a zero offset feature and the relatively high operating pressure of the laser allows continuous tuning of the stabilized frequency over a 400 MHz range. Frequency stability of better than ±1 MHz is achieved.

Published in:

IEEE Journal of Quantum Electronics  (Volume:19 ,  Issue: 8 )