Open AccessIntegration of GaAs waveguides on a silicon substrate for quantum photonic circuits
Author(s) -
Atefeh Shadmani,
Rodrigo Thomas,
Zhe Liu,
Camille Papon,
Martijn J. R. Heck,
Nicolas Volet,
Sven Scholz,
Andreas D. Wieck,
Arne Ludwig,
Peter Lodahl,
Leonardo Midolo
Publication year - 2022
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.467920
Subject(s) - optoelectronics , materials science , photonic integrated circuit , wafer , photonics , waveguide , electronic circuit , substrate (aquarium) , quantum dot , optics , photon , integrated circuit , physics , oceanography , quantum mechanics , geology
We report a method for integrating GaAs waveguide circuits containing self-assembled quantum dots on a Si/SiO 2 wafer, using die-to-wafer bonding. The large refractive-index contrast between GaAs and SiO 2 enables fabricating single-mode waveguides without compromising the photon-emitter coupling. Anti-bunched emission from individual quantum dots is observed, along with a waveguide propagation loss <7 dB/mm, which is comparable with the performance of suspended GaAs circuits. These results enable the integration of quantum emitters with different material platforms, towards the realization of scalable quantum photonic integrated circuits.