Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Saturated Absorption Spectroscopy of 13C2H2 in the Near Infrared Region

  • Moon, H. S. (Center for Information and Telecommunication Standards, Korea Research Institute of Standards and Science) ;
  • Lee, W. K. (Center for Information and Telecommunication Standards, Korea Research Institute of Standards and Science) ;
  • Suh, H. S. (Center for Information and Telecommunication Standards, Korea Research Institute of Standards and Science)
  • Received : 2004.02.19
  • Published : 2004.03.01
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Abstract

Using the external cavity spectroscopy method, we have observed the saturated absorption spectrum of the P(16) line of the v$_1$+v$_3$ band of $^{13}C$_2$H$_2$$. The frequency of a laser has been stabilized to the saturated absorption spectrum. The relative contrast of the saturation spectrum is about 7% with respect to the linear absorption and the linewidth is about 1.8 MHz. The frequency fluctuation of the stabilized LD is about $\pm$ 20 KHz for a sampling time of 100 ms.

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