Influence of detector’s aperture on metrical precision of ring-down cavity

YI Heng-yu; L&#220; Bai-da; PENG Yong; LIU Sheng-lin

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LASER TECHNOLOGY > 2004 > 28(3): 231-233,236.

YI Heng-yu, LÜ Bai-da, PENG Yong, LIU Sheng-lin. Influence of detector’s aperture on metrical precision of ring-down cavity[J]. LASER TECHNOLOGY, 2004, 28(3): 231-233,236.

Citation:

YI Heng-yu, LÜ Bai-da, PENG Yong, LIU Sheng-lin. Influence of detector’s aperture on metrical precision of ring-down cavity[J]. LASER TECHNOLOGY, 2004, 28(3): 231-233,236.

Citation:

YI Heng-yu, LÜ Bai-da, PENG Yong, LIU Sheng-lin. Influence of detector’s aperture on metrical precision of ring-down cavity[J]. LASER TECHNOLOGY, 2004, 28(3): 231-233,236.

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Influence of detector’s aperture on metrical precision of ring-down cavity

1.
Institute of Laser Physics & Chemistry, Sichuan University, Chengdu 610064, China;
2.
Institute of Applied Electronic, CAEP, Mianyang 621900, China

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Received Date: July 10, 2003
Revised Date: August 24, 2003
Published Date: May 24, 2004

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Abstract

Abstract

In order to study the metrical precision of reflectivity via cavity ring-down spectroscopy,first of all,it is investigated that influence of length misadjustment of ring-down cavity on its mode coupling.Then,based on propagation of Gaussian beam,it is deduced that relation between detector's aperture and output power of ring-down cavity of length misadjustment,and it is also numerically simulated that influence of detector's aperture on metrical precision.Results show that the bigger the detector's aperture is,the lower the metrical relative error is.
- reflectivity,
- cavity ring-down,
- misadjustment,
- aperture

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References

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