Athermal electro-optic trimmable waveguide design

Konferenz: MikroSystemTechnik Kongress 2021 - Kongress
08.11.2021 - 10.11.2021 in Stuttgart-Ludwigsburg, Deutschland

Tagungsband: MikroSystemTechnik Kongress 2021

Seiten: 4Sprache: EnglischTyp: PDF

Vermeer, Matthias Leander; Alhareeb, Nadeem Khargan; Trieu, Hoc Khiem; Lipka, Timo (Institute of Microsystems Technology, Hamburg University of Technology, Hamburg, Germany)

High-speed photonic circuits suffer from unnecessary static and dynamic power consumption required for the correction of fabrication non-uniformities and thermal drifts. We propose amorphous silicon on lithium niobate waveguides with a titanium dioxide cladding to obtain a versatile integrated photonics platform. The linear electro-optic tuning mechanism of lithium niobate can be utilized for a tunability up to −7.2 ⋅ 10(exp −6) V(exp −1), while the titanium dioxide cladding is employed to minimize the temperature sensitivity and thus the influence of thermal drifts.