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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 8,
  • Issue 1,
  • pp. 1-5
  • (2004)

Saturated Absorption Spectroscopy of 13C2H2 in the Near Infrared Region

Open Access Open Access

Abstract

Using the external cavity spectroscopy method, we have observed the saturated absorption spectrum of the P(16) line of the v<TEX>$_1$</TEX>+v<TEX>$_3$</TEX> band of <TEX>$^{13}C<TEX>$_2$</TEX>H<TEX>$_2$</TEX>$</TEX>. 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 <TEX>$\pm$</TEX> 20 KHz for a sampling time of 100 ms.

© 2004 Optical Society of Korea

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