PhD. of Emadreza Soltanian

Author: Emadreza Soltanian Promotors: Gunther Roelkens and Jing Zhang Dutch Title: III-V-op-silicium-lasers en -versterkers gerealiseerd via een integratietechnologie op basis van micro-transfer-printen English Title: III-V on silicon lasers and amplifiers realized by micro-transfer printing integration technology Date: 1/12/2025 Main Language: English ISBN number: 978-94-93464-73-5 Thesis: (21MB) Presentation: (5.6MB)

Abstract

Silicon photonics is a promising technology that uses light instead of electrical signals, for example, in data centers, telecommunications, and sensors. However, a major challenge is integrating a compact and stable laser source onto the silicon chip, since silicon itself cannot emit light efficiently. This requires specialized semiconductor materials, such as indium phosphide (InP). In this doctoral research, I used the existing technique of micro-transfer printing, which allows such materials to be precisely placed on silicon chips. Based on this, I designed and demonstrated new laser modules that combine very narrow spectral lines (low noise, stable light source) with very broad tunability (more than 100 nanometers). These properties make the lasers suitable for applications in high-speed communication, spectroscopy, and future quantum and biosensors. The research thus demonstrates how micro-transfer printing can serve as a key enabling technology for advanced laser integration in silicon photonics.

Related Research Topics

• Transfer printing technology