Zobrazeno 1 - 10
of 39
pro vyhledávání: '"J. B. Macchesney"'
Autor:
D. W. Johnson, J. B. MacChesney
Publikováno v:
Sol-Gel Technologies for Glass Producers and Users ISBN: 9781441954558
The emergence of optical communication in the 1970’s led to a search for a means to produce “waveguide quality silica”. Such silica is characterized by having extremely low loss resulting from the lack of a combination of optical absorption (Fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ea38efd56672ddd6a505bedb653ece4
https://doi.org/10.1007/978-0-387-88953-5_18
https://doi.org/10.1007/978-0-387-88953-5_18
Autor:
H. D. Ackler, J. B. MacChesney
Publikováno v:
Advanced Inorganic Fibers ISBN: 9780412607905
A primary characteristic influencing a system’s information capacity is its bandwidth. This is the number of discrete channels within a finite range of frequency. Bandwidth increases with frequency of the carrying signal. The higher the frequency u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7ea178d1e2f4872695969511b2e1bbb
https://doi.org/10.1007/978-1-4419-8722-8_7
https://doi.org/10.1007/978-1-4419-8722-8_7
Publikováno v:
Annual Review of Materials Science. 5:373-394
Glass fiber optics have been used for many years for flexible light distribution bundles, faceplates for cathode-ray tubes, medical endoscopes, and similar purposes. Only recently (1) has serious research been directed toward the use of glass fiber a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f7b4096d265d260d1ed424315e43a4f
https://doi.org/10.1146/annurev.ms.05.080175.002105
https://doi.org/10.1146/annurev.ms.05.080175.002105
Publikováno v:
Bell System Technical Journal. 57:205-210
Optical fiber preforms are prepared by a technique similar to the modified CVD process, except that an RF plasma is used. Optical losses as low as 6.5 dB/km at 1.06 μm were achieved. Higher reaction efficiencies resulted in deposition rates more tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0e34b7a6307d03c5baacfa3719bf7f7
https://doi.org/10.1002/j.1538-7305.1978.tb02082.x
https://doi.org/10.1002/j.1538-7305.1978.tb02082.x
Publikováno v:
Journal of Materials Science. 13:1761-1768
The modified chemical vapour deposition (MCVD) process for making fibre optic preforms uses direct oxidation of SiCl4, together with dopant chlorides to produce core glass. This reaction has been studied by direct infra-red absorption spectrophotomet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcdb15bb6efd58adbb9dd6903d4fca28
https://doi.org/10.1007/bf00548739
https://doi.org/10.1007/bf00548739
Publikováno v:
Bell System Technical Journal. 53:951-954
Low-loss optical fibers may be necessary for economical optical tranamieeion sy.stema. We have developed fibers that exhibit losses of lese than 2 dB/km. at 1.06 µm. The fibers were made by a chemical vapor deposition (CVD) technique that employs si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ecc23c1f3e067cc1d8f75dc896c59de
https://doi.org/10.1002/j.1538-7305.1974.tb02778.x
https://doi.org/10.1002/j.1538-7305.1974.tb02778.x
Publikováno v:
Journal of Applied Physics. 50:5676-5681
The mass transfer of particulates of silica and germania is characteristic of the MCVD process for preparing optical fiber preforms. Here, after considering a number of alternatives, it is suggested that the dominant mechanism of mass transfer is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ded663ced7092b995d4e8827d8a91a7
https://doi.org/10.1063/1.326744
https://doi.org/10.1063/1.326744
Publikováno v:
Journal of Materials Science. 15:1371-1378
Sintering kinetics of glasses prepared by external vapour-deposition technique were quantitatively measured at temperatures ranging from 1000 to 1390° C. Sintering kinetics of borosilicates are consistent with the model proposed for the viscous flow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84e77f855cd4a0c5dd6bb735157b17db
https://doi.org/10.1007/bf00752116
https://doi.org/10.1007/bf00752116
Autor:
S. G. Kosinski, Denise M. Krol, Thomas M. Duncan, J. B. MacChesney, D.C. Douglas, Jay R. Simpson
Publikováno v:
Journal of Non-Crystalline Solids. 105:45-52
The nature of Al and P incorporation into vitreous silica, prepared by the MCVD process, was investigated using Raman and NMR spectroscopy. Both spectroscopic techniques show the presence of AlPO4-like units, i.e. Al and P substituting for 2 Si in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03a99e7dc005a8444f30ee9a876bd101
https://doi.org/10.1016/0022-3093(88)90336-5
https://doi.org/10.1016/0022-3093(88)90336-5
Publikováno v:
Bell System Technical Journal. 54:1681-1692
The structural characteristics of preforms and optical fibers fabricated by modified chemical vapor deposition were studied by optical, interference, and scanning electron microscopy. It was observed that the structural features resulting from the de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19dde458e3cf0dca4907e4af039a52fd
https://doi.org/10.1002/j.1538-7305.1975.tb03549.x
https://doi.org/10.1002/j.1538-7305.1975.tb03549.x