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TAN Zhong-qi, LONG Xing-wu. Influence of cavity length change on measurement of CW cavity ring-down[J]. LASER TECHNOLOGY, 2007, 31(4): 438-441.
Citation: TAN Zhong-qi, LONG Xing-wu. Influence of cavity length change on measurement of CW cavity ring-down[J]. LASER TECHNOLOGY, 2007, 31(4): 438-441.

Influence of cavity length change on measurement of CW cavity ring-down

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  • Received Date: June 28, 2006
  • Revised Date: November 09, 2006
  • Published Date: August 24, 2007
  • In order to clarify the impact of cavity length change on measurement,taking the laser's line-width into account,the influence of cavity length change on the measurement of cavity ring-down in two limiting cases was analyzed and simulated by using cavity ring-down and multiple-beam interferometry theory,hereby the general cases were discussed.Analyses showed the instability chiefly changed resonant frequency of ring-down cavity,then varied the emergent light power and the feature of ring-down signal,which shouled bring serious measurement error.All of these will provide theory direction to measurement error analysis and improve measurement accuracy.
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