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continues to increase, one, naturally, turns tow~ll"ds more exotic means of communication. vVaveguide is a possible winner [1, 2, 3] 2 and in this connection specit11 acknowledgment should be made of the vrr)" important pioneer and continuing work of the Bell. Laboratories in this field. Although the fin,.l assess- ment can
Abstract: A series of papers which appeared in the September 1969 issue of the Bell System Technical Journal treated the theory of dielectric waveguides and stressed the potential use of such media for optical communication circuits.1?4 Here we report on the realization of low-loss, thin glass films which can be used for
These extra losses were due to (1) roughness of the copper surface and (2) transfer of power from the low-loss mode to other modes which can also propagate in the pipe. The latter effect may have serious consequences on signal fidelity because power will transfer (at successive waveguide imperfections) from the signal
George C. Southworth who developed waveguides in the early 1930s, in front of mile-long experimental waveguide run at Bell Labs, Holmdel, New Jersey In a June 1, 1894 lecture, "The work of Hertz", before the Royal Society, Oliver Lodge demonstrated the transmission of 3 inch radio waves from a spark
The resolution obtained with this equipment provides information that is difficult to get by any other means, and its use has proved to be very helpful in waveguide investigations. Published in: The Bell System Technical Journal ( Volume: 35 , Issue: 1 , Jan. 1956 ). Article #:. Page(s): 35 - 65. Date of Publication: Jan. 1956.
A tight-coupling theory, applicable when the coupling is uniform along the direction of wave propagation, shows that a periodic exchange of energy between coupled waves takes place provided that the attenuation and phase constants (? 1 and ? respectively) are both equal, or provided that the phase constants are equal
Attenuation, modal, and polarization properties of n < 1, hollow dielectric waveguides. Christopher C. Gregory and James A. Harrington. The attenuation coefficients for hollow sapphire and lead-based, oxide glass waveguides are calculated using an approximate formalism from Marcatili and Schmeltzer [Bell Syst. Tech.
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