Fabry-Pérot Type Thin-Film Electro-Optical Modulator in the λ = 900 nm to 1000 nm Spectral Region

authored by

Anna K. Rüsseler, Li Zhao, Florens Kurth, Jonas Matthes, Gerd A. Hoffmann, Marco Jupé, Hans H. Johannes, Wolfgang Kowalsky, Tasja Schwenke, Henning Menzel, Andreas Wienke, Detlev Ristau

Abstract

Electro-optical modulators (EOMs) are widely used components because they enable fast switching of narrow-band light sources by an electrical signal. Recently, EOMs for wavelengths below λλ = 1000 nm have attracted great interest for use in integrated photonics with applications such as optogenetics or biophotonics [1,2]. A Fabry-Pérot type EOM allows for very compact implementation on the basis of thin films [3,4]. This concept enables mass production for hybrid integrated optical circuits. Additionally, it implies orders of magnitude shorter interaction length between light and active medium compared to Mach-Zehnder type EOMs, the latter being based on waveguides from the active material. We explore modulation properties of materials with promising electro-optic (EO) coefficients in the double-digit pm/V range at the short end of near infrared wavelengths, not accessible by silicon photonics [5]. In contrast to the striking advantages of these materials, they exhibit non-zero losses due to intrinsic absorption or scattering, which is why shorter interaction lengths are beneficial.

Organisation(s)

Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines

External Organisation(s)

Laser Zentrum Hannover e.V. (LZH)
Technische Universität Braunschweig

Type

Conference contribution

Publication date

2023

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Instrumentation, Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1109/CLEO/EUROPE-EQEC57999.2023.10232733 (Access: Closed)