Kunitsyna, E., VRoyz, M. A.Andreev, I. A.Grebenshchikova, E. A.Pivovarova, A. A.Lebiadok, Ya, VMikulich, R. YuIliinskaya, N. D.Yakovlev, Yu P.2024-07-052024-07-052020-07-011063-7826https://doi.org/10.1134/S1063782620070052https://hdl.handle.net/11452/42995Photodiodes based on solid solutions in the GaSb-InAs system are for the first time applied to study the spectral characteristics of single and coupled whispering-gallery-mode (WGM) lasers emitting in a range of 2.2-2.3 mu m. The capacity of photodiodes with a photosensitive area 2.0 mm in diameter isC= 520 pF atU= -2 V, which corresponds to a time constant of tau = 53 ns. It is shown that the parameters of the fabricated photodiodes make it possible to detect the emission of quantum-sized disc lasers at room temperature not using cryogenic cooling.eninfo:eu-repo/semantics/closedAccessLeadPhotodiodesGasbGainassbGaalassb heterostructuresQuantum-sized disc lasersWgm modesScience & technologyPhysical sciencesPhysics, condensed matterPhysicsArticle00054438560000979680254710.1134/S1063782620070052