An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. They are used as optical repeaters in the long distance fiber-optic cables which carry much of the world's telecommunication links.
The Norwegian University of Science and Technology is a public research university in Norway and the largest in terms of enrollment. The university's headquarters is located in Trondheim, with regional campuses in Gjøvik and Ålesund.
Thayer School of Engineering at Dartmouth is the engineering school of Dartmouth College, an Ivy League research university, located in Hanover, New Hampshire, United States. Located in a three-building complex along the Connecticut River on Dartmouth's campus, Dartmouth Engineering offers undergraduate, master's, and doctoral degrees in engineering sciences, and has partnerships with other liberal arts colleges throughout the US to offer dual degrees. The school was established in 1867 with funds from Dartmouth alumnus Sylvanus Thayer, also known for his work in establishing the engineering curriculum at the United States Military Academy at West Point, New York.
Naomi J. Halas is the Stanley C. Moore Professor in Electrical and Computer Engineering, and professor of biomedical engineering, chemistry and physics at Rice University. She is also the founding director of Rice University Laboratory for Nanophotonics, and the Smalley-Curl Institute. She invented the first nanoparticle with tunable plasmonic resonances, which are controlled by their shape and structure, and has won numerous awards for her pioneering work in the field of nanophotonics and plasmonics. She was also part of a team that developed the first dark pulse soliton in 1987 while working for IBM.
Sir David Neil Payne CBE FRS FREng is a British professor of photonics who is director of the Optoelectronics Research Centre at the University of Southampton. He has made several contributions in areas of optical fibre communications over the last fifty years and his work has affected telecommunications and laser technology. Payne’s work spans diverse areas of photonics, from telecommunications and optical sensors to nanophotonics and optical materials, including the introduction of the first optical fibre drawing tower in a university.
A photonic integrated circuit (PIC) or integrated optical circuit is a microchip containing two or more photonic components that form a functioning circuit. This technology detects, generates, transports, and processes light. Photonic integrated circuits utilize photons as opposed to electrons that are utilized by electronic integrated circuits. The major difference between the two is that a photonic integrated circuit provides functions for information signals imposed on optical wavelengths typically in the visible spectrum or near infrared (850–1650 nm).
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. The light is a form of carrier wave that is modulated to carry information. Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference is required. This type of communication can transmit voice, video, and telemetry through local area networks or across long distances.
Solid is one of the four fundamental states of matter along with liquid, gas, and plasma. The molecules in a solid are closely packed together and contain the least amount of kinetic energy. A solid is characterized by structural rigidity and resistance to a force applied to the surface. Unlike a liquid, a solid object does not flow to take on the shape of its container, nor does it expand to fill the entire available volume like a gas. The atoms in a solid are bound to each other, either in a regular geometric lattice, or irregularly. Solids cannot be compressed with little pressure whereas gases can be compressed with little pressure because the molecules in a gas are loosely packed.
Elsa M. Garmire, Elsa Meints Garmire, was born in Buffalo, New York, on November 9, 1939. She is the Sydney E. Junkins Professor of Engineering at Dartmouth College, where she has served as Dean of Thayer School of Engineering. Elected to the American Academy of Arts and Sciences, the National Academy of Engineers, and the National Academy of Inventors, she helped pioneer laser technology and is an expert in nonlinear optics. She has patented devices to enhance optical communications including lasers, waveguides, and detectors.
Ilesanmi Adesida is a Nigerian American physicist of Yoruba descent. He has been the provost at Nazarbayev University in Astana, Kazakhstan, from September 2016.
PhoSFOS is a research and technology development project co-funded by the European Commission.
Manijeh Razeghi is an Iranian-American scientist in the fields of semiconductors and optoelectronic devices. She is a pioneer in modern epitaxial techniques for semiconductors such as low pressure metalorganic chemical vapor deposition (MOCVD), vapor phase epitaxy (VPE), molecular beam epitaxy (MBE), GasMBE, and MOMBE. These techniques have enabled the development of semiconductor devices and quantum structures with higher composition consistency and reliability, leading to major advancement in InP and GaAs based quantum photonics and electronic devices, which were at the core of the late 20th century optical fiber telecommunications and early information technology.
Jonathan C. Knight, is a British physicist. He is the Pro Vice-Chancellor (Research) for the University of Bath where he has been Professor in the Department of Physics since 2000, and served as head of department. From 2005 to 2008, he was founding Director of the university's Centre for Photonics and Photonic Materials.
Betty Lise Anderson is an American electrical engineer, working in the field of photonics. She has been a professor at the Ohio State University since 1990. She is a Fellow of SPIE, and a Senior Member of the Optical Society of America and of the Institute of Electrical and Electronics Engineers.
Kristen Carlson Maitland is an associate professor at Texas A&M University. She develops optical instrumentation for the detection and diagnosis of diseases, including infection and cancer. She has served on the Board of Directors of SPIE.
Pinshane Yeh Huang is an Associate Professor of Materials Science at the University of Illinois at Urbana–Champaign. She develops transmission electron microscopy to investigate two-dimensional materials. During her PhD she discovered the thinnest piece of glass in the world, which was included in the Guinness World Records. Huang was awarded the 2019 Presidential Early Career Award for Scientists and Engineers.
Anne C. Tropper is a Professor of Physics at the University of Southampton. Her work considers solid-state and semiconductor lasers; specifically the development of ytterbium-doped silica fibre lasers and Vertical External-Cavity Surface-Emitting Lasers. She was elected a Fellow of The Optical Society in 2006, and awarded the 2021 SPIE Maiman Laser Award for her contributions to laser source science and technology.
Ulf Österberg is a Swedish-American physicist specializing in optical fibers, nonlinear optics, and ultrafast and THz spectroscopy. With Walter Margulis, he discovered efficient second-harmonic generation in optical fibers, and his optical precursor studies are particular noteworthy.
Mathias Michael Schubert is a German physicist, J. A. Woollam Distinguished Professor of Electrical and Computer Engineering at the University of Nebraska-Lincoln, and member of the Nebraska Center for Materials and Nanoscience. He is a specialist in spectroscopic ellipsometry and has contributed to the development of blue and white LED, fast processors and efficient biological and chemical sensors. He is also visiting professor at Linkoping University and Associate Editor of the journal Applied Physics Letters.
John Ballato is an American materials scientist, entrepreneur, and academic. He holds the J. E. Sirrine Endowed Chair of Optical Fiber and is a professor of materials science and engineering, electrical and computer engineering, as well as physics and astronomy at Clemson University. He has received many international recognitions for his research on optical and optoelectronic materials, particularly as relates to optical fiber.
