10.6 μm heterodyne receiver based on a superconducting hot-electron bolometer mixer and a quantum cascade laser
We report on the development of a heterodyne receiver at mid-infrared wavelength for high-resolution spectroscopy applications. The receiver employs a superconducting NbN hot electron bolometer as a mixer and a room temperature distributed feedback quantum cascade laser operating at 10.6 μm (28.2 TH...
Main Authors: | , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2019-07-01
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Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/1.5090132 |
Summary: | We report on the development of a heterodyne receiver at mid-infrared wavelength for high-resolution spectroscopy applications. The receiver employs a superconducting NbN hot electron bolometer as a mixer and a room temperature distributed feedback quantum cascade laser operating at 10.6 μm (28.2 THz) as a local oscillator. The stabilization of the heterodyne receiver has been achieved using a feedback loop controlling the output power of the laser. Improved Allan variance times as well as a double sideband receiver noise temperature of 5000 K and a noise bandwidth of 2.8 GHz of the receiver system are demonstrated. |
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ISSN: | 2158-3226 |