SYMPOSIUM ON OPTICAL FIBER MEASUREMENTS CHRONICLED.Persons interested in metrology for fiber-optic telecommunication will want to get a copy of the Technical Digest, Symposium on Optical Fiber Measurements, 2000. The 20th annual symposium was held in September 2000, at the NIST (National Institute of Standards & Technology, Washington, DC, www.nist.gov) The standards-defining agency of the U.S. government, formerly the National Bureau of Standards. It is one of three agencies that fall under the Technology Administration (www.technology. Laboratories in Boulder, CO. In their preface to the digest, the symposium chairs note that after 20 years, "fiber-optic metrology is not only still important, but we are seeing a rise in metrology needs for the technologies resulting from fiber optics--components, integrated optics Combining electrical and optical components on the same silicon-based substrates used in the fabrication of a semiconductor chip. Also called "silicon photonics," fiber-optic communications employs numerous integrated optics devices, including lasers, photodetectors, beam splitters, and fiber systems." The majority of the papers in the digest fall into one of three categoriesdispersion, components, and non-linear optics. Dispersion is the largest category and contains two sessions on polarization mode dispersion Polarization mode dispersion (PMD) is a form of modal dispersion where two different polarizations of light in a waveguide, which normally travel at the same speed, travel at different speeds due to random imperfections and asymmetries, causing random spreading of optical pulses. , and one session each on chromatic dispersion See dispersion. and group-delay measurements on fiber Bragg gratings. Papers on components include grating metrology as well as receiver and amplifier characterization. The category of non-linear measurements includes papers on measurements of non-linear coefficient and effective area. In all, the digest consists of 44 papers (9 invited and 35 contributed), with slightly more than half of the papers originating outside the United States United States, officially United States of America, republic (2005 est. pop. 295,734,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third largest country in population and the fourth largest country in area. . Copies of Technical Digest, Symposium on Optical Fiber Measurements, 2000 (NIST Special Publication 953), are available at no charge while supplies last. Contact the NIST Optoelectronics Division at (303) 497-5342. |
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