17 July 2021 – 24 July 2021 University of Warsaw, Chęciny, Poland

Lecturers

Andrew Weiner

Purdue University, USA

Ultrafast Photonics Time-Frequency Signal Processing: Classical and Quantum

These lectures introduce analog signal processing approaches for manipulation of broadband and ultrafast optical signals. The first lecture focuses on pulse shaping and classical applications in ultrafast optics and radio-frequency photonics. The second lecture focuses on quantum applications, including manipulation and measurement of broadband time-energy entangled photons.

These lectures introduce analog signal processing approaches for manipulation of broadband and ultrafast optical signals. The first lecture focuses on pulse shaping and classical applications in...

About the Speaker

Andrew Weiner, the Scifres Family Distinguished Professor of Electrical and Computer Engineering at Purdue University, is best known for pioneering work on programmable femtosecond pulse shaping and ultrafast signal processing. His recent work concerns optical frequency combs as well as multi-frequency and time-frequency quantum optics, including integrated photonics quantum sources. Weiner is a member of the National Academy of Engineering and National Academy of Inventors, was selected as a Department of Defense National Security Science and Engineering Faculty Fellow, and has received the OSA R.W. Wood Prize, the OSA Adolph Lomb Medal, and the IEEE Photonics Society Quantum Electronics Award, among others. He is author of the textbook Ultrafast Optics and recently concluded a six-year term as Editor-in-Chief of Optics Express. In his 27 years on the faculty, he has graduated over 40 Ph.D. students.

Andrew Weiner, the Scifres Family Distinguished Professor of Electrical and Computer Engineering at Purdue University, is best known for pioneering work on programmable femtosecond pulse shaping...

Christine Silberhorn

Paderborn University, Germany

Quantum optics and information science in multi-dimensional networks

Photonic quantum systems, which comprise multiple optical modes as well as highly non-classical and sophisticated quantum states of light, have been investigated intensively in various theoretical pro¬posals over the last decades. The ideas cover a large range of different applications in quantum technology, spanning from quantum communication and quantum metrology to quantum simulations and quantum computing. However, the experimental implementations require advanced setups of high complexity, which poses a considerable challenge. The successful realization of controlled quantum network structures is key for the future advancement of the field. Here we present three differing approaches to overcome current limitations for the experimental implementation of multi-dimensional quantum networks: non-linear integrated quantum optics, pulsed temporal modes and time-multiplexing. Non-linear integrated quantum devices with multiple channels enable the combinations of different functionalities, such as sources and fast electro-optic modulations, on a single compact monolithic structure. Pulsed photon temporal modes are defined as field orthogonal superposition states, which span a high dimensional system. They occupy only a single spatial mode and thus they can be efficiently used in single-mode fibre communication networks. Finally, time-multiplexed quantum walks are a versatile tool for the implementation of a highly flexible simulation platform with dynamic control of the underlying graph structures and propagation properties.

Photonic quantum systems, which comprise multiple optical modes as well as highly non-classical and sophisticated quantum states of light, have been investigated intensively in various theoretical...

About the Speaker

Christine Silberhorn is a professor at Paderborn University, where she is leading a research group in the area of integrated quantum optics. Her interests cover novel optical technologies based on non-linear integrated devices including their fabrication and tailoring for new applications, and the exploration of ultrafast pulsed light as well as of time multiplexed quantum networks. She has contributed to the development of engineered quantum light sources and circuits using integrated optics and ultrafast pulsed lasers, the implementation of multichannel quantum networks for photon counting and quantum simulations, and the realization of quantum communication systems with bright light. She received her doctorate from the University of Erlangen in 2003, and worked as a postdoc at the University of Oxford from 2003 to 2004. From 2005 to 2010 she was a Max Planck Research Group Leader in Erlangen. Her research work has been awarded by several prizes; most prominently she received the Gottfried Wilhelm Leibniz-prize from the German Science Foundation in 2011 and a consolidator ERC-grant in 2017. In 2013 she has been elected as a member of the Leopoldina, National Academy of Science, and in 2018 as a Fellow of The Optical Society.

Christine Silberhorn is a professor at Paderborn University, where she is leading a research group in the area of integrated quantum optics. Her interests cover novel optical technologies based on...

Frank Wise

Cornell University, USA

Generation of Ultrashort Pulses in Fiber Lasers

Short-pulse (picosecond and femtosecond) fiber lasers have increasing impact in applications, owing to their practical benefits. The combination of a waveguide medium and diode pumping allows the design of robust, high-power (above 1000 watts) instruments. However, the waveguide medium also enhances nonlinear optical effects, and these often limit the performance of short-pulse fiber lasers. The goal of these lectures is to provide an introduction to short-pulse generation in fiber lasers and amplifiers. The lectures will begin with a tutorial and introductory description of the fundamental linear and nonlinear processes that underlie short-pulse generation in optical fiber. The most-important techniques for short-pulse generation will be discussed, and the performance will be compared to that offered by other technologies. The lectures will end with a brief introduction to recent advances in this area.

Short-pulse (picosecond and femtosecond) fiber lasers have increasing impact in applications, owing to their practical benefits. The combination of a waveguide medium and diode pumping allows the...

About the Speaker

Frank Wise received a BS degree in Engineering Physics from Princeton University, an MS degree in Electrical Engineering from the University of California at Berkeley, and a PhD in Applied Physics from Cornell University. Before PhD studies, he worked on advanced integrated circuits at Bell Laboratories. Since receiving the PhD in 1988, he has been on the faculty in Applied Physics at Cornell.

Frank Wise received a BS degree in Engineering Physics from Princeton University, an MS degree in Electrical Engineering from the University of California at Berkeley, and a PhD in Applied Physics...

Grzegorz Soboń

Wrocław University of Science and Technology, Poland

Compact Near- and Mid-Infrared Optical Frequency Combs Based on Fiber Lasers

An optical frequency comb (OFC), introduced in the late 90’s of the XX century has revolutionized the field of precise measurements of time, frequency and dimensions. The “heart” of the frequency comb – a mode-locked laser, forms in the spectral domain a regular structure of thousands of modes, equally spaced by the pulse repetition frequency. Optical frequency combs have enabled the development of e.g. ultra-precise optical-atomic clocks, which are currently the most accurate known time standards. They find applications in precise frequency measurements, laser spectroscopy, precise dimensional metrology, or calibration of spectrographs for extra-solar planet search. They have also emerged as ideal sources for molecular spectroscopy, due to their high brightness, broad spectral coverage and compatibility with enhancement cavities. Laser-based detection of most important molecules (e.g. greenhouse gases, explosives, air pollutants, etc.) requires a source which covers the mid-infrared (mid-IR) spectral region, where the strongest fundamental vibrational transitions are present. The development of robust and field-deployable gas detection platforms relies on the development of compact, environmentally stable laser sources. The lecture will cover the fundamentals and recent achievements of in near- and mid-infrared fiber-based frequency combs and their applications, especially in molecular spectroscopy and greenhouse gas sensing.

An optical frequency comb (OFC), introduced in the late 90’s of the XX century has revolutionized the field of precise measurements of time, frequency and dimensions. The “heart” of the frequency...

About the Speaker

Grzegorz Soboń is an associate professor at Wrocław University of Science and Technology. He received his doctoral degree and habilitation in 2013 and 2018, respectively. His research interests focus on ultrafast fiber lasers, nonlinear fiber optics, optical frequency combs and laser spectroscopy. He is a co-author of many original constructions of laser systems, e.g. ultrafast graphene-based fiber lasers, compact fiber-based mid-infrared frequency combs for spectroscopy and femtosecond fiber lasers in the visible spectral region for biomedical imaging. He is an author/co-author of more than 80 papers in JCR-indexed journals (cited >2500 times) and over 100 conference contributions. He was involved in over 20 research projects, of which in 4 as principal investigator (funded by the National Science Centre, Polish Ministry of Science and Higher Education, and the Foundation for Polish Science).

Grzegorz Soboń is an associate professor at Wrocław University of Science and Technology. He received his doctoral degree and habilitation in 2013 and 2018, respectively. His research interests...

Hui Cao

Yale University, USA

Physics and Application of Complex Lasers

Over the past sixty years, lasers have enabled major scientific and technological advancements, and have been exploited in numerous applications due to their advantages such as high brightness and high coherence. However, the high spatial coherence of laser illumination is not always desirable, as it can cause adverse artifacts such as speckle noise in imaging applications. Furthermore, the high-power broad-area lasers often suffer spatio-temporal instabilities that result from nonlinear interactions between the lasing modes and the active materials. We have developed novel lasers to suppress the spatio-temporal instabilities and to tune the spatial coherence of laser emission. Laser coherence control not only provides an efficient means for eliminating coherent artifacts, but also enables new applications.

Over the past sixty years, lasers have enabled major scientific and technological advancements, and have been exploited in numerous applications due to their advantages such as high brightness and...

About the Speaker

Hui Cao is the John C. Malone Professor of Applied Physics and of Physics, and a professor of Electrical Engineering at Yale University. She received her Ph.D. degree in Applied Physics from Stanford University in 1997. Prior to joining the Yale faculty in 2008, she was on the faculty of Northwestern University from 1997 to 2007. Her technical interests and activities are in the areas of mesoscopic physics, complex photonic materials and devices, nanophotonics, and biophotonics. She authored or co-authored one monograph, twelve book-chapters, seven review articles and 250 journal papers. She is a Fellow of the APS, OSA, AAAS and IEEE.

Hui Cao is the John C. Malone Professor of Applied Physics and of Physics, and a professor of Electrical Engineering at Yale University. She received her Ph.D. degree in Applied Physics from...

Jelena Pesic

Nokia Bell Labs, France

High Speed Optical Networks; Boosting Optical Network Operation with Machine Learning

Abstract available soon.

About the Speaker

Jelena Pesic is a research engineer with NOKIA Bell Labs, based in Paris, France. After receiving a Masters degree in Electrical Engineering from the faculty of Electrical Engineering at the University of Belgrade in Serbia, she completed a 6 month internship with the engineering school of Telecom Bretagne, located in Brest, France. This involved working on the optical access network, GPON (Gigabit Passive Optical Network) under the supervision of profs. Annie Gravey and Philippe Gravey. This rich experience encouraged her passion for research and subsequent enrolment into optics. Jelena then completed her PhD in the subject of proactive restoration of backbone optical networks, with the French operator Orange Labs, under the supervision of Esther Le Rouzic and prof. Laurent Dupont. In recognition of this work, she received the award of best paper at the conference ONDM2011 (Optical Network Design and Modelling) Following her PhD, she carried out two postdoctoral studies. During the first of these, she worked for INRIA (French National Research Institute) on the European project SASER, designing MAC layer for TWIN optical networks. During the second, she worked with Telecom Bretagne. Jelena’s current position with Nokia Bell Labs affords her the opportunity to be part of future product innovation, as well as several European projects like SENDATE and ORCHESTRA. She has served as a technical committee member for OSA and IEEE international conferences, reviewed articles submitted for peer-review and accepted invitations to write and publish articles at various international worldwide conferences.

Jelena Pesic is a research engineer with NOKIA Bell Labs, based in Paris, France. After receiving a Masters degree in Electrical Engineering from the faculty of Electrical Engineering at the...

Maciej Wojtkowski

Institute of Physical Chemistry, Poland

From organs to cells - the challenges of modern biomedical imaging

One of the still unresolved problems in biological and medical imaging is the possibility of non-invasive visualization of living tissue (latin in vivo) with the accuracy of microscopic examination. This is particularly emphasized in the age of innovative microscopic techniques, which have the ability to optically select axial layers without the need to take and prepare samples. The main physical limitation of in vivo microscopic imaging is related to the light scattering introduced by the irregular and often discontinuous distribution of the refractive index. Light scattering induces strong modulation of the wavefront of the light back-scattered from the sample. As a consequence, the contrast of the reconstructed images is dramatically decreased by increased noise. Other side effects of the uneven distribution of the refractive index are significant deformations of measured objects on the reconstructed images. In addition, in the case of consistent laser illumination, there are so-called speckles - strong changes in the intensity of recorded light caused by interference of transverse modes of the laser beam. Speckle noise adversely affects system resolution and reduces image quality. Adding all these effects results in a serious loss of image information. In our work we try to solve these basic physical limitations by developing new imaging techniques that use partially coherent light with spatial-time modulation of the phase of the radiation used. Our research activities focus on developing new optical methods that enable biological objects to be imaged live and in a minimally invasive manner. We have come a long way in developing techniques for imaging objects of different sizes - from the scale of organs to the internal structure of a single cell.

One of the still unresolved problems in biological and medical imaging is the possibility of non-invasive visualization of living tissue (latin in vivo) with the accuracy of microscopic examination...

About the Speaker

Maciej Wojtkowski (b.1975) is active in the field of biomedical imaging. His research interest includes optical coherence tomography and low coherence interferometry applied to biomedical imaging. Dr Wojtkowski has significant impact on development of Fourier domain OCT (FdOCT) technique. The first FdOCT instrument for in vivo retinal imaging was designed and constructed by dr Wojtkowski and his colleagues from the Medical Physics Group at Nicolaus Copernicus University Poland in 2001. Dr Wojtkowski also contributed in development and construction of three clinical prototype high speed and high resolution OCT instruments which are in use in ophthalmology clinics: in Collegium Medicum in Bydgoszcz, Poland, New England Eye Center, Boston, USA, and UPMC Pittsburgh. He is an author of more than 160 publications including 90 full papers in peer reviewed journals. During his academic career Maciej Wojtkowski served short internships in Vienna University and University of Kent. He also worked for two years as postdoctoral fellow in joint project between Massachusetts Institute of Technology and New England Eye Center. Currently prof Wojtkowski is a head of the Department of Physical Chemistry of Biological Systems at Institute of Physical Chemistry of the Polish Academy of Sciences where he also leads his own research team (Physical Optics and Biophotonics Group).

Maciej Wojtkowski (b.1975) is active in the field of biomedical imaging. His research interest includes optical coherence tomography and low coherence interferometry applied to biomedical imaging...

Nirit Dudovich

Weizmann Institute, Israel

Attosecond Interferometry

One of the most important aspect of attosecond spectroscopy lies in its coherent nature. Resolving the internal coherence is a primary challenge in this field, serving as a key step in our ability to reconstruct the internal dynamics. As in many other branches in physics, coherence is resolved via interferometry. In my talk, I will describe advanced schemes for attosecond interferometry. The application of these schemes provides direct insights into a range of fundamental phenomena in nature, from tunneling and photoionization in atomic systems to ultrafast currents in solid state systems.

One of the most important aspect of attosecond spectroscopy lies in its coherent nature. Resolving the internal coherence is a primary challenge in this field, serving as a key step in our ability...

About the Speaker

Visit my lab's website for information about my background: http://www.weizmann.ac.il/complex/Dudovich/

Visit my lab's website for information about my background: http://www.weizmann.ac.il/complex/Dudovich/

Xian-Min Jin

Shanghai Jiao Tong University

Scalable Photonic Quantum Technologies with Quantum Chip and Quantum Memory

Photons can be generated, manipulated and detected comparatively easier than other quantum particles, and can be transferred in a long distance without coupling with the environment. However, the limitations of bulk optics and inefficiencies of quantum sources and operations prevent photonic quantum technologies from realizing in practice. Integrated photonics, associated with quantum memory, provides an elegant way to scale up quantum systems. In my talk, I will present our endeavors recently delivered in femtosecond laser direct writing, 3D photonic quantum chip, broadband room-temperature quantum memory, and their applications in quantum computing and quantum simulation.

Photons can be generated, manipulated and detected comparatively easier than other quantum particles, and can be transferred in a long distance without coupling with the environment. However, the...

About the Speaker

Xian-Min Jin is a professor at Shanghai Jiao Tong University (SJTU) and the director of Center for Integrated Quantum Information Technologies (IQIT). He received Ph.D. degree from University of Science and Technology of China (USTC) in 2008. After two-year postdoctoral research, he worked as a research associate at University of Oxford from 2010 to 2014, and was awarded Marie Curie Fellow and Wolfson College Fellow in 2012. He joined SJTU as a receipt of National Young 1000 Talents in 2014 and was promoted to full professor in 2019. His interests cover a broad spectrum ranging from quantum computing, quantum communication and quantum metrology with special focus on the subject of building large-scale quantum systems, via integrated photonics and quantum memory.

Xian-Min Jin is a professor at Shanghai Jiao Tong University (SJTU) and the director of Center for Integrated Quantum Information Technologies (IQIT). He received Ph.D. degree from University of...

Andrew White

University of Queensland, Australia

Abstract available soon.

About the Speaker

Coming Soon

Coming Soon


Workshop Leaders

  • Carlos Lopez Mariscal, Appalachian State University, USA