CC BY
2Photoelectric converter with aperture correction unit for
power-over-fiber system
A.S. Pankov1, A.A. Garkushin2, R.S. Ponomarev1, I.L. Volkhin2, V.A. Maksimenko2, V.V. Krishtop1,2*
1- Perm State National Research University, 15, Bukireva, Perm, 614068, Russia
2- Perm National Research Polytechnic University, 29, Komsomolsky prospect, Perm, 614990, Russia
Power-over-fiber (PoF) systems are currently the subject of active research due to their potential for use in aggressive and explosive environments, where the use of metallic conductors may be unacceptable [1,2]. The key element of the PoF system, affecting the efficiency of the entire system, is the photoelectric converter module (PECM), which includes an optical fiber, a homogenizer case and a crystal [3].
This paper presents the developed aperture correction unit at the input of the PECM for a PoF system. The functional unit is implemented as a lens integrated with an optical fiber delivering laser radiation to the input of the photoelectric converter crystal. This unit allows to significantly increase the divergence angle of optical radiation and obtain its optimal value at the input of the PECM, which will reduce the homogenizer length and, as a result, reduce attenuation and weight and size of the entire PECM while maintaining the consistency of the radiation profile with the shape and size of the crystal and the required value of radiation uniformity on its surface. In the course of the study, the main characteristics influencing the efficiency of the aperture correction unit were studied: aperture value, focal length, radiation pattern and radiation profile. Estimated calculations of the optimal parameters of the unit for use in the photoelectric conversion module were performed. Based on the data of two-dimensional numerical modeling, the dependences of the aperture, focal length, directivity pattern and radiation profile on the radius of curvature of the lens and the geometry of the optical fiber core obtained under different lens manufacturing modes are obtained. Qualitative agreement between the experimental and simulation results and data is obtained.
The research was funded under the state assignment, contract no. 121101300016-2.
[1] A.A. Garkushin, V.V. Krishtop, V.A. Maksimenko, M.A. Garipova, N.S. Milyukov, K.D. Trapeznikov, E.V. Nifontova, P.V. Zueva, Prospects for application of POWER-OVER-FIBER technology, Applied photonics, Vol. 9, no. 1, pp. 46-67 (2023).
[2] A.A. Garkushin, V.V. Krishtop, S.A. Storozhev, I.L. Volkhin, E.V. Nifontova, E.V. Urbanovich, D.A. Kustov, I.V. Kadochikov, Digital Twin of the Photoelectric Converter of the Power Transmission System over Optical Fiber, Journal of Physics: Conference Series. - IOP Publishing, vol. 2701, №. 1, pp. 012146, (2024).
[3] A.A. Garkushin, V.V. Krishtop, S.A. Storozhev, I.L. Volkhin, E.V. Nifontova, E.V. Urbanovich, D.A. Kustov, I.V. Kadochikov, Intelligent power supply system with power transmission via optical fiber, Bulletin of the Russian Academy of Sciences: Physics, vol. 88, No. 6, pp. 986990, (2024).
