Publication 1 :

On-chip PHotonics Erbium-doped Laser for LIdar Applications, project presentation

Benoît d’Humières, TEMATYS

The objective of OPHELLIA is to develop novel materials and integration technology for the realization of innovative PIC(a) building blocks to develop PIC-based laser sources for emerging TOF and FMCW LiDAR applications.

These LIDAR will be low cost and low size thanks to the high chip integration and tolerant packaging technology  while, at the same time, exhibit the same or even higher performance than existing solutions.


Publication 2 :

Screenshot 2022-02-10 164128

Osornio Martinez, C. E., Coulaud, Q., Canat, G., & García Blanco, S. M. (2021). 

Gain simulation of erbium-doped Al2O3 waveguide amplifiers for LiDAR applications

Poster session presented at 25th Annual Symposium of the IEEE Photonics Benelux Chapter 2021, 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.