学术讲座【High-power quantum dot tunable ultrafaslaser source】
时间：2018年11月12 日（周 一 ）下午15:00-16:00
地点：仓山校区光电学院四层学术报告厅
主讲： 西北大学 丁颖教授
主办：光电与信息工程学院、医学光电科学与技术教育部重点实验室、福建省光子技术重点实验室、福建省光电传感应用工程技术研究中心
专家简介：Dr. Ying Ding is Professor with Institute of Photonics & Photonic Tech., Northwest University, Honorary Research Fellow with the University of Glasgow, and Chief Scientist of Hike Information Technology (Shanghai) Co., Ltd. He has over eighteen years’ experience in semiconductor lasers’ design, materials epitaxial growth, device fabrication, characterization and nano-photonic study. He was awarded the Ph.D. degree from the Institute of Semiconductors, Chinese Academy of Sciences. He and his colleagues in Japan were the first to present microcavity modes and sub-wavelength waveguides and optical coupling in InP nanowires in the world. He and his partners in Europe are the world-record holders for the highest peak power, the broadest wavelength tunability as well as the narrowest RF linewidth to be achieved from chip-size quantum dot mode-locking ultrafast lasers at the 1.3-μm waveband. His research interests include quantum dot lasers, ultrafast optics, integrated optics,mid-infrared photonic devices.
(报告摘要：）High-power all-semiconductor ultrafast master-oscillator-power-amplifier (MOPA) systems with wavelength and repetition rate tunability are one of the key elements for the development of cutting-edge biomedical imaging applications for replacing the classic but expensive and bulky ultrashort pulsed Ti:sapphire (Ti:s) laser source. Ultrafast semiconductor lasers operating with widely tunable wavelengths and repetition rates, together with high-power semiconductor optical amplifiers (SOAs), are of great interest for different nonlinear microscopy (NLM) applications. Quantum dot (QD) materials offer a broad gainbandwidth, high saturable output power and ultrafast recovery time of the absorber making them ideal candidates for the generation of ultrashort pulses. In this talk, a high-peak-power all-QD MOPA system and repetition rate tunability will be presented. Our recent progress on optimization of high-quality QD growth will also be introduced.
