Methane-stabilized He-Ne laser intercomparisons 1976
- 1 December 1976
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. IM-25 (4) , 447-450
- https://doi.org/10.1109/TIM.1976.6312261
Abstract
Three methane-stabilized lasers of differing optical and mechanical design have been intercompared. Frequency differences of the output radiations have been measured with the lasers stabilized by similar techniques. Agreement to ±2 parts in 1011 is reported for lasers stabilized by a third derivative method. The stabilized frequency was found to be dependent on the method of stabilization. Frequency shifts of greater than 1 part in 1010 were recorded upon changing the method of stabilization. The effects were studied of the variation of modulation amplitude and the positioning of the detector used to generate the servocontrol signal for stabilization.Keywords
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