Paper Presented at SPIE Photonics Europe 2022 titled ‘ On-chip photonics erbium-doped amplifiers: fabrication and characterization of Al2O3:Er3+ and development as a laser platform’ by Dawson Bonneville on 5th April 2022 in Strasbourg, France.

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Poster Presented in the 25th Annual Symposium of the IEEE Photonics Benelux Chapter 2021 titled ‘Gain simulation of erbium-doped Al2O3 waveguide amplifiers for LiDAR applications’ by Carlos Eduardo Osornio Martinez et. al. on 25th November 2021 in Mons, Belgium.


Photonic integrated circuits (PIC) based laser sources are of great interest for LiDAR applications. PICs play a crucial role for the fabrication of high performance, low cost and low size LiDAR tools. In the Ophellia project (On-chip Photonics Erbium-doped Laser for Lidar Applications) the development of Er3+:Al2O3 waveguides with low background loss and high gain per unit length is proposed to fabricate on-chip amplifiers. In this work, a three-level rate-equation model, which incorporates the quenching effects of the Er3+ ions, is used to calculate the optical gain of the integrated amplifiers. The gain for three different waveguide cross-sections, namely,  fully etched, ridge, and inverted strip loaded are compared. Simulation results show >25 dB gain for a fully-etched waveguide with cross-section of 800 nm x 1200 nm.

You can access the IEEE full paper here: OsornioMartinez2021_IEEE