Photodiodes for Detecting the Emission of Quantum-Sized Disc Lasers Operating in the Whispering Gallery Modes (2.2-2.3 mu m)

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Kunitsyna E., Royz M. A. , Andreev I. A. , Grebenshchikova E. A. , Pivovarova A. A. , Ahmetoglu (Afrailov) M. , ...More

SEMICONDUCTORS, vol.54, pp.796-802, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 54
  • Publication Date: 2020
  • Doi Number: 10.1134/s1063782620070052
  • Title of Journal : SEMICONDUCTORS
  • Page Numbers: pp.796-802


Photodiodes 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.