optical spectrum frequency communications
61telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
62National broadband plans from around the world — Broadband is a term normally considered to be synonymous with a high speed connection to the internet. The term itself is technology neutral; broadband can be delived by a range of technologies including DSL, LTE or next generation access. This… …
63Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
64Signals intelligence — SIGINT redirects here. For the UNIX signal, see SIGINT (POSIX). RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UK USA Security Agreement. Signals intelligence (often contracted to SIGINT) is intelligence gathering… …
65Telecommunication — A parabolic satellite communication antenna at the biggest facility for satellite communication in Raisting, Bavaria, Germany …
66Transmitter — For biologic transmitters, see transmitter substance. Commercial FM broadcasting transmitter at radio station WDET FM, Wayne State University, Detroit, USA. It broadcasts at 101.9 MHz with a radiated power of 48 kW. In electronics and… …
67Digital television transition in the United States — Further information: Digital television transition The DTV (an abbreviation of digital television, also called digital broadcast) transition in the United States was the switchover from analog (the traditional method of transmitting television… …
68telecommunication — [tel΄ə kə myo͞o΄ni kā′shən] n. [also pl., with sing. or pl. v.] communication by electronic or electric means, as through radio, telephone, telegraph, television, or computers * * * tel·e·com·mu·ni·ca·tion (tĕlʹĭ kə myo͞o nĭ kāʹshən) n. 1. The… …
69Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
70Mamyshev 2R regenerator — The Mamyshev 2R regenerator is an all optical regenerator used in optical communications. In 1998, Pavel V. Mamyshev of Bell Labs proposed and patented the use of the self phase modulation (SPM) for single channel optical pulse reshaping and re… …
