Comparison of TJ and ITO GaN VCSELs in terms of their frequency characteristics

• Autorzy: Śpiewak Patrycja , Wasiak Michał , Sarzała Robert P.

Identyfikatory

DOI

10.24425/opelre.2024.150609

• Języki publikacji: EN

Abstrakty

EN

The work focuses on vertical cavity surface emitting lasers (VCSELs) made of nitride materials that emit a wavelength of 445 nm. Two structures were examined: a laser with a tunnel junction and implantation (TJ VCSEL) and an ITO contact (ITO VCSEL). The analysis delves into capacitance phenomena influencing the modulation speed of these lasers. The results highlight differences in active currents between two structures, i.e., currents which contribute to the modulation of the laser emission. According to the authors’ simulations, the TJ VCSEL is more effective in modulating the number of carriers in the active region than the ITO VCSEL, assuming the same modulation amplitude of driving current.

Słowa kluczowe

EN

VCSELs; nitride; capacitance phenomena; computer modelling

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2024
• Tom: Vol. 32, No. 3
• Strony: art. no. e150609
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Śpiewak Patrycja

• Institute of Physics, Lodz University of Technology, ul. Wólczańska 217/221, 93-005 Lodz, Poland

• https://orcid.org/0000-0002-2820-7420

autor

Wasiak Michał

• Institute of Physics, Lodz University of Technology, ul. Wólczańska 217/221, 93-005 Lodz, Poland

• https://orcid.org/0000-0002-9569-4265

autor

Sarzała Robert P.

• Institute of Physics, Lodz University of Technology, ul. Wólczańska 217/221, 93-005 Lodz, Poland

• https://orcid.org/0000-0002-2929-0844

Bibliografia

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Uwagi

1. The work is supported by the project NCN no. UMO-2018/29/N/ST7/02151.

2. Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).