Dryazgov M, Semenov A, Manova N, Korneeva Y, Korneev A. Modelling of normal domain evolution after single-photon absorption of a superconducting strip of micron width. In: J. Phys.: Conf. Ser. Vol 1695.; 2020. 012195 (1 to 4).
Abstract: The present paper describes a modelling of normal domain evolution in superconducting strip of micron width using solving differential equations describing the temperature and current changes. The solving results are compared with experimental data. This comparison demonstrates the high accuracy of the model. In future, it is possible to employ this model for improvement of single photon detector based on micron-scale superconducting strips.
|
Elezov MS, Scherbatenko ML, Sych DV, Goltsman GN. Active and passive phase stabilization for the all-fiber Michelson interferometer. In: J. Phys.: Conf. Ser. Vol 1124.; 2018. 051014 (1 to 5).
Abstract: We put forward two methods for phase stabilization in the all-fiber Michelson interferometer. To perform passive phase stabilization, we use a heat bath for all fibers and electro-optical components, and put the interferometer in a hermetic case. To perform active phase stabilization, we monitor output power of the interferometer and develop an electronic feedback control. The phase stabilization methods enable stable interference pattern for several minutes, and can be helpful for the development of the optimal quantum receiver for coherent signals.
|
Elezov MS, Shcherbatenko ML, Sych DV, Goltsman GN. Development of control method for an optimal quantum receiver. In: J. Phys.: Conf. Ser. Vol 1695.; 2020. 012126.
Abstract: We propose a method for optimal displacement controlling of an optimal quantum receiver for registrations a binary coherent signal. An optimal receiver is able to distinguish between two phase-modulated states of a coherent signal. The optimal receiver controlling method can be used later in practice in various physical implementations of the optimal receiver.
|
Elmanov I, Sardi F, Xia K, Kornher T, Kovalyuk V, Prokhodtsov A, et al. Development of focusing grating couplers for lithium niobate on insulator platform. In: J. Phys.: Conf. Ser. Vol 1695.; 2020. 012127.
Abstract: In this paper, we fabricate and experimentally study focusing grating couplers for lithium niobate on an insulator photonic platform. The transmittance of a waveguide equipped with in- and out-couplers with respect to the grating period is measured with and without silicon dioxide cladding applied. Our results show the influence of silicon dioxide cladding on the efficiency and the central wavelength of grating couplers and can be used to improve grating coupling efficiency. Our study is supported by numerical simulations.
|
Elmanova A, An P, Kovalyuk V, Golikov A, Elmanov I, Goltsman G. Study of silicon nitride O-ring resonator for gas-sensing applications. In: J. Phys.: Conf. Ser. Vol 1695.; 2020. 012124.
Abstract: In this work, we experimentally studied the influence of different gaseous surroundings on silicon nitride O-ring resonator transmission. We compared the obtained results with numerical calculations and theoretical analysis and found a good agreement between them. Our results have a great potential for gas sensing applications, where a compact footprint and high efficiency are desired simultaneously.
|
