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Fiber Optics Illustrated Dictionary - Part 27

The Fiber Optics Illustrated Dictionary - Part 27 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary serve as wavepass filters bandpass filters that pass a range of wavelengths or notch filters that reflect a range of wavelengths. Dichroic filter arrays can be assembled by lining up multiple components on a flat or curved base substrate and selectively coating the surface with dichroic reflective materials. Thus the surface could be patterned to selectively filter not only certain frequencies but wavelengths coming from certain directions over a specified area. Dicke Robert H. 1916-1997 An inventor and educator Dicke is known for his modeling of gravitational forces his contributions to aerospace research and his pioneer work in maser laser technology. In 1941 he joined MIT s Radiation Laboratory becoming a Princeton professor a few years later. In May 1956 Dicke submitted a patent application for Molecular Amplification and Generation Systems and Methods describing ways to generate and am plify electromagnetic waves such as those in the microwave frequencies through the activity of resonant gases e.g. ammonia . Dicke s patent anticipates Fabry-Perot interferometers and cavity-resonating gas lasers. Since an infrared light source is described in some of the drawings it is a pioneer laser device U.S. 2 851 652 . Dicke s invention sought to establish more efficient ways to generate coherent microwaves or infrared waves and to improve the cavityresonating amplification effect. Dicke was a member of prominent astronomical and physics societies and won numerous awards for his work. See Javan Ali laser history Townes Charles. Dicke radiometer A device developed by Robert H. Dicke to detect the very subtle radiation residual from the Big Bang the theoretical cataclysmic expansion of our universe. DID See Direct Inward Dialing. dielectric Nonconducting material that provides an Microwave Maser and Optical Infrared Patent Application - 1956 These are excerpts from the diagrams that accompany Robert Dicke s May 1956patent submission for .