Rotational transition competition in a single-mode CO2laser

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Witteman, W.J. and Carbone, Robert J. (1970) Rotational transition competition in a single-mode CO2laser. IEEE Journal of Quantum Electronics, 6 (7). pp. 462-466. ISSN 0018-9197

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Abstract:In the present work we have investigated the mechanism of rotational transition competition of a single-mode laser by studying the effect of small variations of the out-coupling loss factor. For this purpose we used on the out-coupling side one extra mirror with a reflectivity of only 1 percent. In this way the instability problem could be followed with a controllable out-coupling device having a variable reflectivity between 73.6 and 81.5 percent and a corresponding variation in out-coupling loss factor. Due to the nonzero rotational relaxation time we find a narrow range of the gain-to-loss ratio of respective transitions to have nonsingle oscillations. We have observed single as well as multioscillating transitions as a function of the loss factor.
Item Type:Article
Copyright:©1970 IEEE
Link to this item:http://purl.utwente.nl/publications/55631
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