%0 Journal Article
%T Electrical Signal-to-Noise Ratio  Enhancement in Detection of Mid-IR Signals by Four-Wave Mixing in As2S3-on-LiNbO3 Waveguides
%A Qi Chen
%A Christi Madsen
%J Optics and Photonics Journal
%P 69-74
%@ 2160-889X
%D 2016
%I Scientific Research Publishing
%R 10.4236/opj.2016.65010
%X Mid-infrared (mid-IR) signals can be converted to near-infrared (near-IR)
wavelengths in As<sub>2</sub>S<sub>3</sub>-on-LiNbO<sub>3</sub> waveguides by
high efficiency four-wave mixing. It provided us a solution to detect mid-IR
signals indirectly by state-of-the-art near-IR detectors. High efficiency
four-wave mixing was demonstrated and electrical signal-to-noise ratio (eSNR)
improvement was also investigated. Compared to direct detection by PbSe and
HgCdTe (MCT) mid-IR detectors, the calculation indicated that, at room
temperature, the indirect detection to mid-IR signals increased the electrical
signal-to-noise ratio up to 67 dB.
%K Chalcogenide
%K Mid-Infrared
%K Four-Wave Mixing
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=66580