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Jean-Claude Simon
Jean-Claude Simon (born 1948) is a researcher in the field of semiconductor optical amplifiers. Since 1998 he was permanent professor at ENSSAT / University of Rennes1. Director of FOTON, research department in Optics and Optoelectronics for Telecom, affiliated to CNRS. Biography Jean-Claude Simon was born in Da Lat, Vietnam, on 14 September 1948. He received the Doctorate degree from Université d’Orsay, France, in 1975, and the Doctorate d’Etat degree from University of Nice Sophia Antipolis, France, in 1983. In 1972, he joined the Centre national d'études des télécommunications (CNET), in Lannion, France, the research center of the French PTT (later France Télécom) for his thesis work. Since 1973, he was employed by CNET as a research scientist on optical communication, in particular on the subject of optical amplifiers. From 1983 to 1997, he was leader of a group in the field of semiconductor optical amplifiers and their applications for nonlinear optical devices. Fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor
A semiconductor is a material which has an electrical resistivity and conductivity, electrical conductivity value falling between that of a electrical conductor, conductor, such as copper, and an insulator (electricity), insulator, such as glass. Its electrical resistivity and conductivity, resistivity falls as its temperature rises; metals behave in the opposite way. Its conducting properties may be altered in useful ways by introducing impurities ("doping (semiconductor), doping") into the crystal structure. When two differently doped regions exist in the same crystal, a semiconductor junction is created. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called "metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France Télécom
Orange S.A. (), formerly France Télécom S.A. (stylized as france telecom) is a French multinational corporation, multinational telecommunications corporation. It has 266 million customers worldwide and employs 89,000 people in France, and 59,000 elsewhere. In 2015, the group had revenue of €40 billion. The company's head office is located in the 15th arrondissement of Paris, 15th arrondissement of Paris. Orange has been the company's main brand for mobile phone, mobile, landline, internet and Internet Protocol television (IPTV) services since 2006. The Orange brand originated in the United Kingdom in 1994 after Hutchison Whampoa acquired a controlling stake in Orange UK, Microtel Communications: that company became a subsidiary of Mannesmann in 1999 and then was acquired by France Télécom in 2000. The France Télécom company was rebranded to Orange on 1 July 2013. The company has faced criticism due to the Orange S.A. suicides. History Nationalised service (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Da Lat
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1948 Births
Events January * January 1 ** The General Agreement on Tariffs and Trade (GATT) is inaugurated. ** The Constitution of New Jersey (later subject to amendment) goes into effect. ** The railways of Britain are nationalized, to form British Railways. * January 4 – Burma gains its independence from the United Kingdom, becoming an independent republic, named the ''Union of Burma'', with Sao Shwe Thaik as its first President, and U Nu its first Prime Minister. * January 5 ** Warner Brothers shows the first color newsreel (''Tournament of Roses Parade'' and the ''Rose Bowl Game''). ** The first Kinsey Reports, Kinsey Report, ''Sexual Behavior in the Human Male'', is published in the United States. * January 7 – Mantell UFO incident: Kentucky Air National Guard pilot Thomas Mantell crashes while in pursuit of an unidentified flying object. * January 12 – Mahatma Gandhi begins his fast-unto-death in Delhi, to stop communal violence during the Partition of India. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stewart D
Stewart may refer to: People *Stewart (name), Scottish surname and given name *Clan Stewart, a Scottish clan *Clan Stewart of Appin, a Scottish clan Places Canada *Stewart, British Columbia *Stewart Township, Nipissing District, Ontario (historical) New Zealand *Stewart Island / Rakiura United Kingdom *Newton Stewart, Scotland *Portstewart, Northern Ireland *Stewartby, Bedfordshire, England United States Airports *Stewart Air Force Base, New York, a former Air Force base and now-joint civil-military airport, shared by: **Stewart Air National Guard Base, New York **Stewart International Airport (also known as Newburgh-Stewart IAP), New York Counties *Stewart County, Georgia *Stewart County, Tennessee Localities * Stewart, Alabama *Stewart, Indiana *Stewart, Minnesota *Stewart, Mississippi *Stewart, Missouri * Stewart, Ohio *Stewart, Tennessee *Stewart, Texas *Stewart, West Virginia *Fort Stewart, Georgia *Stewart Manor, New York, a village in the Town of Hempstead, in Nassau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Rennes 1
The University of Rennes 1 is a public university located in the city of Rennes, France. It is under the Academy of Rennes. It specializes in science, technology, law, economics, management and philosophy. There are currently about students enrolled, with about members of teaching staff and other staff members employed by the university. In 2023, the University of Rennes 1 will merge with four schools in the "UNIR" project, in order to create a new University of Rennes. History Creation of the University of Brittany Asked by Francis II, Duke of Brittany, the Pope created the first university of Brittany in Nantes in 1460. It taught arts, medicine, law, and theology. In 1728, the mayor of Nantes, Gérard Mellier, asked that the university be moved to Rennes, which was more trade orientated already had the Parliament of Brittany. The law school was moved the Rennes in 1730. In 1793 the French Revolution closed all universities and it was not before 1806 that the Law school re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Amplifier
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 fiberoptic cables which carry much of the world's telecommunication links. There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fiber amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lannion
Lannion ( ; ) is a commune in the Côtes-d'Armor department in Brittany in northwestern France. It is a subprefecture of Côtes-d'Armor, the capital of Trégor and the center of an urban area of almost 60,000 inhabitants. Climate Lannion has a oceanic climate (Köppen climate classification ''Cfb''). The average annual temperature in Lannion is . The average annual rainfall is with December as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . The highest temperature ever recorded in Lannion was on 19 July 2016; the coldest temperature ever recorded was on 28 February 2018. Population Inhabitants of Lannion are called ''lannionnais'' in French. History Lannion takes its name from "Lann Huon" in Breton or "Parish of Huon" in English. The old quarter of Lannion attracts many tourists to the city. The old quarter contains old squares, a church called Brélévenez, half-timbered houses, chapels and frescoes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Amplifiers
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 fiberoptic cables which carry much of the world's telecommunication links. There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fiber amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre National D'études Des Télécommunications
The Centre national d'études des télécommunications (French language acronym CNET, ''national center for telecommunication studies'' in English) was a French national research centre in telecommunications. It was created on May 4, 1944 as a French interministerial research centre, but it was placed under the general supervision of the French Minister of PTT (Posts and Telecommunications). In 1990, Directorate General of Telecommunications (DGT) (part of the French Ministry of Posts and Telecommunications) became France Télécom and CNET became the R&D (research and development) centre of France Télécom. In March 2000, CNET was renamed and became part of France Télécom R&D, the research and development division of France Télécom. This division was derived from CNET, the Centre commun d'études de télévision et télécommunications (CCETT, created in 1972) as well as other entities. Since 2007, France Telecom R&D is known as ''Orange Orange most often refers to: *Oran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Nice Sophia Antipolis
The University of Nice Sophia Antipolis (french: Université Nice Sophia Antipolis) was a university located in Nice, France and neighboring areas. It was founded in 1965 and was organized in eight faculties, two autonomous institutes and an engineering school. It was merged in 2019 into the Côte d'Azur University. It also hosts the first WWW Interactive Multipurpose Server. It is a member of the Coordination of French Research-Intensive Universities, the equivalent of the Russell Group in the UK. History The University of Nice was officially established by decree dated October 23, 1965. However, it has roots that go back to the 17th century, with the Collegium Jurisconsultorum Niciensium created in 1639 by the Princes of Savoy. It was composed of a body of (law consultants and lawyers) and it lasted until Nice was incorporated into France in 1860. In the 17th century, courses were taught at its College of Medicine. The University of Nice's vocation was asserted at the be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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