TY  - JOUR
AU  - Lobanov, Yury
AU  - Shcherbatenko, Michael
AU  - Shurakov, Alexander
AU  - Rodin, Alexander V.
AU  - Klimchuk, Artem
AU  - Nadezhdinsky, Alexander I.
AU  - Maslennikov, Sergey
AU  - Larionov, Pavel
AU  - Finkel, Matvey
AU  - Semenov, Alexander
AU  - Verevkin, Aleksandr A.
AU  - Voronov, Boris M.
AU  - Ponurovsky, Yakov
AU  - Klapwijk, Teunis M.
AU  - Gol'tsman, Gregory N.
PY  - 2014
DA  - 2014//
TI  - Heterodyne detection at near-infrared wavelengths with a superconducting NbN hot-electron bolometer mixer
JO  - Opt. Lett.
SP  - 1429
EP  - 1432
VL  - 39
IS  - 6
KW  - HEB
KW  - zebra
KW  - IR
KW  - infrared
AB  - We report on the development of a highly sensitive optical receiver for heterodyne IR spectroscopy at the communication wavelength of 1.5 μm (200 THz) by use of a superconducting hot-electron bolometer. The results are important for the resolution of narrow spectral molecular lines in the near-IR range for the study of astronomical objects, as well as for quantum optical tomography and fiber-optic sensing. Receiver configuration as well as fiber-to-detector light coupling designs are discussed. Light absorption of the superconducting detectors was enhanced by nano-optical antennas, which were coupled to optical fibers. An intermediate frequency (IF) bandwidth of about 3 GHz was found in agreement with measurements at 300 GHz, and a noise figure of about 25 dB was obtained that was only 10 dB above the quantum limit.
UR  - http://dx.doi.org/10.1364/OL.39.001429
UR  - https://doi.org/10.1364/OL.39.001429
DO  - 10.1364/OL.39.001429
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=906), last updated on Thu, 13 May 2021 13:23:13 -0500
ID  - Lobanov_etal2014
ER  -