@inproceedings{137dc0c280a94505ac1853eb5f84d86b,
title = "Autocorrective interferometers for photonic integrated circuits: Invited paper",
abstract = "Extensive literature has shown that finite impulse response (FIR) interferometers can be engineered to be insensitive under variations of different physical parameters, e.g., to ensure flat-top response and/or tolerance to fabrication errors. In this context, I will show how the Bloch sphere representation can be a very powerful design tool providing superior physical insight into the working principle of autocorrective devices like broadband 50:50 splitters or flat-top interleavers, that can be therefore designed through simple analytical formulas. I will eventually review the recent progress in practical implementation of the autocorrective designs in the micron-scale silicon photonics platform of VTT.",
keywords = "autocorrective photonic devices, Bloch sphere, fabrication tolerant interferometers, finite impulse response filters, flat top filters, geometric representation, integrated interferometers, wavelength insensitive splitters",
author = "Matteo Cherchi",
note = "Funding Information: I acknowledge support by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number 320168, and by the Business Finland project PICAP, decision number 44065/31/2020. I thank my colleague Mikko Harjanne for useful discussions and support, and my colleagues Fein Sun and Markku Kapulainen for respectively fabricating and measuring the devices presented in §5. Publisher Copyright: {\textcopyright} 2022 SPIE.; Smart Photonic and Optoelectronic Integrated Circuits ; Conference date: 20-02-2002 Through 24-02-2002",
year = "2022",
month = mar,
day = "5",
doi = "10.1117/12.2609718",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "International Society for Optics and Photonics SPIE",
editor = "Sailing He and Sailing He and Laurent Vivien",
booktitle = "Smart Photonic and Optoelectronic Integrated Circuits 2022",
address = "United States",
}