Dissertation in the field of Integrated Optics, Amit Khanna

The title of thesis is CMOS Integrated Optics: Studies on Submicron Waveguide Mode Properties and Devices

CMOS integrated optics will bring light on a microprocessor chip. This will allow ultra-high speed and large bandwidth for telecommunications, datacenters, and consumer cables. The communication bandwidth will increase all the way from datacenters to the user. CMOS integrated optics is also useful for applications such as sensing for healthcare and environment. These sensors provide high accuracy and reproducibility due to the well-established CMOS processing techniques. Such products are not far in the future since they are based on processes used to make billions of electronic chips today. In this thesis we propose new CMOS integrated optical waveguides. These waveguides are useful for sensing and communications since they guide light in the low-index material regions. We show that, by a proper design, the material asymmetry limitation of CMOS integrated optics can be solved. We also demonstrate unprecedented recovery of a high loss waveguide through a CMOS based post-processing technique. Some of the waveguide techniques are already commercialized and others are being actively investigated.

Opponent: Professor Andrea Melloni, Politecnico di Milano, Italy

Supervisor: Professor Harri Lipsanen School of Electrical Engineering, Department of Micro and Nanosciences

Dissertation website  

Contact information:

Amit Khanna
tel. +32 468 332905
amit.khanna@imec.be