Noise filtering via electromagnetically induced transparency

作者：Jeong Taek; Bae In Ho; Moon Han Seb^*

来源：Optics Communications, 2017, 383: 31-35.

DOI：10.1016/j.optcom.2016.08.070

• Electromagnetically induced transparency
• EIT filter
• Pseudo-thermal light

We report on the intensity-noise reduction of pseudo-thermal light via electromagnetically induced transparency (EIT) in the A-type system of the 5S(1/2)-5P(1/2) transition in Rb-87. Noise filtering of the pseudo-thermal probe light was achieved via an EIT filter and measured according to the degree of intensity noise of the pseudo-thermal probe light. Reductions in the intensity and spectral noise of the pseudo-thermal probe light with the EIT filter were observed using the direct intensity fluctuation and heterodyne detection technique, respectively. Comparison of the intensity noise of the pseudo-thermal probe light before and after passing through the EIT filter revealed a significant reduction in the intensity noise.

• 出版日期2017-1-15