In this paper, the recent progress on a new Ge-rich SiGe platform for mid-IR integrated photonics is presented. Low-loss spiral waveguides working over a broadband wavelength range are discussed, followed by a sensing proof-of-concept using a standalone photoresist with a known spectral absorption pattern. In addition, the development of new mid-IR interferometric devices for wavelength filtering and enhancement of the light-matter interaction are presented. Finally, efficient designs to exploit the third-order nonlinearities in these Ge-rich SiGe waveguides at mid-IR wavelengths are shown. The demonstration of these key building blocks will pave the way towards the implementation of new mid-IR photonic integrated systems with multiple functionalities.

Ge-Rich Graded-Index SiGe Alloys: Exploring a Versatile Platform for mid-IR Photonics

Frigerio J.;Ballabio A.;Chrastina D.;Isella G.;
2018-01-01

Abstract

In this paper, the recent progress on a new Ge-rich SiGe platform for mid-IR integrated photonics is presented. Low-loss spiral waveguides working over a broadband wavelength range are discussed, followed by a sensing proof-of-concept using a standalone photoresist with a known spectral absorption pattern. In addition, the development of new mid-IR interferometric devices for wavelength filtering and enhancement of the light-matter interaction are presented. Finally, efficient designs to exploit the third-order nonlinearities in these Ge-rich SiGe waveguides at mid-IR wavelengths are shown. The demonstration of these key building blocks will pave the way towards the implementation of new mid-IR photonic integrated systems with multiple functionalities.
2018
International Conference on Transparent Optical Networks
978-1-5386-6605-0
interferometric optical devices; mid-IR integrated photonics; mid-IR spectroscopy; non-linear mid-IR photonics; SiGe alloys; waveguides
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1123133
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