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Ge-rich graded-index Si1-xGex racetrack resonators for long-wave infrared photonics
Author(s): J. M. Ramírez; V. Vakarin; Q. Liu; J. Frigerio; A. Ballabio; X. Le Roux; G. Isella; C. Alonso-Ramos; M. Montesinos; L. Vivien; D. Marris-Morini
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Paper Abstract

Mid-infrared racetrack resonators are demonstrated working at 8μm wavelength. The devices are based on a graded SiGe platform providing low propagation loss on a large wavelength range in the mid-IR. Different resonators designs have been fabricated, with varying gap distances in the directional coupler. Q factors of more than 3000 have been experimentally demonstrated. These results pave the way towards compact mid-IR sensors or efficient active devices.

Paper Details

Date Published: 1 February 2019
PDF: 6 pages
Proc. SPIE 10926, Quantum Sensing and Nano Electronics and Photonics XVI, 109261U (1 February 2019); doi: 10.1117/12.2510738
Show Author Affiliations
J. M. Ramírez, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
III-V Lab. (France)
V. Vakarin, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
Q. Liu, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
J. Frigerio, Politecnico di Milano (Italy)
A. Ballabio, Politecnico di Milano (Italy)
X. Le Roux, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
G. Isella, Politecnico di Milano (France)
C. Alonso-Ramos, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
M. Montesinos, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
L. Vivien, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)
D. Marris-Morini, Ctr. de Nanosciences et de Nanotechnologies, Univ. Paris Sud, CNRS, Univ. Paris Saclay (France)


Published in SPIE Proceedings Vol. 10926:
Quantum Sensing and Nano Electronics and Photonics XVI
Manijeh Razeghi; Jay S. Lewis; Eric Tournié; Giti A. Khodaparast, Editor(s)

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