Photonic integrated circuit for wavefront shaping

Filip Milojković; Niels Verellen; Roelof Jansen; Frédéric Peyskens; Mathias Prost; Jon Øyvind Kjellman; Xavier Rottenberg; Pol Van Dorpe

doi:10.1117/12.3002852

13 March 2024 Photonic integrated circuit for wavefront shaping

Filip Milojković, Niels Verellen, Roelof Jansen, Frédéric Peyskens, Mathias Prost, Jon Øyvind Kjellman, Xavier Rottenberg, Pol Van Dorpe

Author Affiliations +

Proceedings Volume PC12851, Adaptive Optics and Wavefront Control for Biological Systems X; PC128510I (2024) https://doi.org/10.1117/12.3002852
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

The main hindrance to optical imaging at elevated depths is the scattering of light exhibited by biological tissues. Consequently, various wavefront shaping techniques have been developed in order to achieve focusing in scattering media. In our scattering compensation experiments, the spatial light modulator is replaced by a novel integrated photonics-based wavefront shaper. We work on focusing through a static scatterer using near-infrared light. The photonic integrated circuit (PIC) used in this research consists of a 1D array of optical emitters with independently controlled phases. This PIC-based wavefront shaper was fabricated on a CMOS-compatible platform offering the prospect of large-scale fabrication.

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Filip Milojković, Niels Verellen, Roelof Jansen, Frédéric Peyskens, Mathias Prost, Jon Øyvind Kjellman, Xavier Rottenberg, and Pol Van Dorpe "Photonic integrated circuit for wavefront shaping", Proc. SPIE PC12851, Adaptive Optics and Wavefront Control for Biological Systems X, PC128510I (13 March 2024); https://doi.org/10.1117/12.3002852

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KEYWORDS

Photonic integrated circuits

Wavefronts

Spatial light modulators

Biomedical optics

Scattered light

Scattering media

Silicon nitride

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