Advances in GaAs and GaSb optoelectronics for heterogeneous integration with silicon-photonics – Presented by Mircea Guina, Tampere University of Technology

Advances in GaAs and GaSb optoelectronics for heterogeneous integration with silicon-photonics – Presented by Mircea Guina, Tampere University of Technology, at the Photonic Integration Conference 2018, which will take place on October 2, at High Tech Campus Eindhoven, The Netherlands.

The development of photonic integrated circuits, which refers broadly to a technology platform that allows the combination of different optical components, has recently progressed as a fast pace pushed by vigorous advances of Si-based circuit technology. However, major advances are still needed to enable more practical and scalable manufacturing approaches for integration of III-V light sources and other optoelectronics components on Si. This trend is accelerated by transition of Si-photonics technology to application outside telecomm and datacomm area, for example towards mid-IR wavelength range to serve needs in sensing and life-science applications.

With this perspective, the latest advances in developing GaAs- and GaSb-based light sources for heterogenouse integration with Si photonics circuits are reviewed. In terms of integration platform we address hybrid and novel monolithic approaches. Specific applications discussed include un-cooled operation of transceivers at 1.2 -1.3 µm window and integrated programmable light sources for sensing at 2-3 µm window.

About Mircea Guina
Dr. Mircea GUINA is the head of the Optoelectronics Research Centre of Tampere University of Technology in Finland. He conducts scientific work related to molecular beam epitaxy and novel optoelectronic devices for applications in sensing, automotive, photovoltaics, medicine, and quantum technology.

He has published more than 180 journal papers, several book chapters, and holds 4 international patents.

He has an outstanding track record in leading large scale research projects extending from basic science to technology transfer.

Prof. Guina is a strong advocate of bridging research and entrepreneurial activities and is co-founder of three start-ups related to laser technologies.

What drives you?
Passion to advance photonics technology from material science all the way to applications. Photonic integration is an excellent vehicle to address new application and bring light to more mainstream applications, for example in sensing.

What emerging technologies/trends do you see as having the greatest potential in the short and long run?
Miniaturization of photonics for applications in life-science, automotive, communication, and sensing.

What do you hope people to learn from your presentation?
Opportunities open by optoectronics to address new PIC applications.

About Tampere University of Technology – Optoelectronics Research Centre
The Optoelectronics Research Centre is led by Prof. Mircea Guina. The group conducts a comprehensive chain of research activities targeting synthesis of novel III-V photonics materials, development of advanced nanotechnology tools for the fabrication of optoelectronics devices, and the development of application tailored optoelectronics devices. The focus areas are epitaxy highly mismatched III-V semiconductor alloys, such as GaInNAsSb and GaAsBi, site-controlled epitaxy of quantum dots and nanowires, high efficiency multi-junction solar cells, high power disk lasers and edge-emitting lasers, and active chips for photonic integrated circuits.

The core technology of ORC is Molecular Beam Epitaxy (MBE); with 5 operational MBE reactors we can fabricate a wide range of material systems based on GaAs, InP and GaSb. We pool our efforts to maintain a leading position in MBE by developing new techniques enabling breakthroughs in the science of new materials and photonic devices. The combined expertise in epitaxy and processing of optoelectronics devices has enabled us to achieve important milestones in the development of optoelectronic devices covering a spectral range from 630 nm to 2.5 µm. The technology related activities are supported by state-of-the-art materials and device characterization tools as well as by unique expertise in device theory and simulation.

About Photonic Integration Conference 2018
The 4th edition of the Photonic Integration Conference will take place on October 2, 2018, at High Tech Campus Eindhoven, The Netherlands, during Photonics Applications Week.

This edition will focus on business models for applying photonic integration, cases of photonic integration in optical sensing, lighting & energy, IT and telecom – current situation and future prospects.

Photonics is the key enabling technology engine needed to keep the globe communicating and connected in the 21st century. It provides the bandwidth, speed, reach and flexibility needed to run exciting new applications that everyone knows – healthcare & life sciences, internet of things, M2M, social media, big data, datacenters, cloud computing and voice over IP. It’s the most energy efficient technology to scale up all these services.

Join us for a one-day executive conference explaining why integrated photonics is vital to keep our world communicating and connected in the 21st century. We’re bringing the global experts to Eindhoven, the undisputed innovation champion of light technologies.


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