High-efficiency uni-travelling-carrier photomixer at 1.55 µm and spectroscopy application up to 1.4 THz
A Beck, G Ducournau, M Zaknoune, E Peytavit… - Electronics Letters, 2008 - IET
Electronics Letters, 2008•IET
The fabrication of InGaAs/InP uni-travelling-carrier photodiodes integrated with broadband
horn antennas and demonstration of photomixing up to 1.8 THz are reported. A radiated
power of 1.1 µW at 940 GHz was measured for a photocurrent of only 2.75 mA (50 mW
optical power), demonstrating the high efficiency of the device. The conversion efficiency
obtained has been increased by more than a decade compared to the best reported values
in the literature. The photomixer is used to identify the 1411 GHz water vapour absorption …
horn antennas and demonstration of photomixing up to 1.8 THz are reported. A radiated
power of 1.1 µW at 940 GHz was measured for a photocurrent of only 2.75 mA (50 mW
optical power), demonstrating the high efficiency of the device. The conversion efficiency
obtained has been increased by more than a decade compared to the best reported values
in the literature. The photomixer is used to identify the 1411 GHz water vapour absorption …
The fabrication of InGaAs/InP uni-travelling-carrier photodiodes integrated with broadband horn antennas and demonstration of photomixing up to 1.8 THz are reported. A radiated power of 1.1 µW at 940 GHz was measured for a photocurrent of only 2.75 mA (50 mW optical power), demonstrating the high efficiency of the device. The conversion efficiency obtained has been increased by more than a decade compared to the best reported values in the literature. The photomixer is used to identify the 1411 GHz water vapour absorption line at atmospheric pressure.
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