Speech Title: High Speed Photonic Devices for Lightwave Technology
Abstract: The optical devices are the backbone of fiber telecommunications, high speed 3D sensing such as Lidar systems, and VR/AR applications. In this talk, ultra-high speed DFB laser integrated with EA modulators, ultra-wide band lithium niobate thin film optical modulators, and ultra-high speed photodetectors will be introduced.
Speech Title: Very High Power and High Speed VCSELs for LIDAR and Datacom Applications
Abstract: Recent advances of VCSELs using distributed Bragg reflectors (DBR) and high contrast grating (HCG) for multiple mode fiber optical communication and LIDAR applications will be reviewed. Results include 106 Gbps PAM4-encoded directly modulated VCSEL and high power density (>4000 W/mm2) VCSEL arrays for LIDAR applications.
Speech Title: Nanoscale Materials Science as basis for nanoLEDs for Displays and Communication
Abstract: While nitride LEDs with chip sizes of above several hundreds of microns have been widely applied for solid state lighting as well as in communications, there is an urgent need to reduce the chip size so that such LEDs can be used as individual pixels for next generation self-emissive displays. In this talk I will present our unique materials research that enables arrays of relaxed sub-µm sized InGaN platelets, virtually free from dislocations with a smooth top c-plane ideal for InGaN quantum well growth. The indium contents in such InGaN platelets can be tuned from 0 to 20%, so that the green and red-emitting InGaN quantum wells are grown on such templates with a low level of strain similar to highly efficient blue-emitting InGaN quantum wells on GaN films. Beside the obvious top application for advanced AR/VR/HUD applications, these ultra-small nanoLEDs may also find key applications in communication.
Speech Title: Recent Progress in High-capacity Optical Wireless Communication
Abstract: Optical wireless communication can surpass the capabilities of radio-based wireless communication in many respects. When using accurately steered infrared beams, it can offer fiber-equivalent high capacity at high user densities, while being highly secure, insensitive to EMI, and energy-efficient. This keynote talk presents recent advances in our indoor high-capacity beam-steering technologies for all-optical bi-directional wireless communication including accurate automatic self-calibrated user localization.
Speech Title: Machine Learning for New Insights into Uultrafast Dynamics in Nonlinear Fibre Optics
Abstract: Although artificial intelligence has found great success in many areas of science, the application of machine learning to current photonics research remains at an early stage. A specific field where machine learning promises to greatly accelerate both basic science and applications is in ultrafast photonics, where nonlinear light-matter interactions lead to highly complex dynamics. We have recently reported a number of results in nonlinear fiber optics that have shown how deep learning can augment existing experimental techniques as well as provide new theoretical insights. This paper will review a selection of our work in this area.
Speech Title: DIY Optical Spectrometers: From Lab to Market
Abstract: This talk overviews Do-It-Yourself (DIY) approaches for the implementation of optical spectrometers. It covers the basic theory and engineering principle behind each approach. In addition, field and commercial prototypes are highlighted including ones campaigned through crowdfunding platform.