Radio and Electronic Engineer
Volume 43, Issue 11, November 1973
Volumes & issues:
-
Volume 54 (1984)
-
Volume 53 (1983)
-
Volume 52 (1982)
-
Volume 51 (1981)
-
Volume 50 (1980)
-
Volume 49 (1979)
-
Volume 48 (1978)
-
Volume 47 (1977)
-
Volume 46 (1976)
-
Volume 45 (1975)
-
Volume 44 (1974)
-
Volume 43 (1973)
-
Volume 42 (1972)
-
Volume 41 (1971)
-
Volume 40 (1970)
-
Volume 39 (1970)
-
Volume 38 (1969)
-
Volume 37 (1969)
-
Volume 36 (1968)
-
Volume 35 (1968)
-
Volume 34 (1967)
-
Volume 33 (1967)
-
Volume 32 (1966)
-
Volume 31 (1966)
-
Volume 30 (1965)
-
Volume 29 (1965)
-
Volume 28 (1964)
-
Volume 27 (1964)
-
Volume 26 (1963)
-
Volume 25 (1963)
Volume 43, Issue 11
November 1973
Fibres, lasers and communications
- Author(s): W.A. Gambling
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 653 –654
- DOI: 10.1049/ree.1973.0096
- Type: Article
- + Show details - Hide details
-
p.
653
–654
(2)
Optical fibres for communications
- Author(s): D. Marcuse
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 655 –664
- DOI: 10.1049/ree.1973.0097
- Type: Article
- + Show details - Hide details
-
p.
655
–664
(10)
This paper presents a review of the state of the art of optical fibres and their potential use as waveguides for long-distance transmission of light. The physical principle of light guidance in fibres is discussed and the advantages and short comings of fibres are pointed out. The properties of single and multimode fibres are reviewed.
The challenge of fibre-optical communication systems
- Author(s): C.P. Sandbank
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 665 –674
- DOI: 10.1049/ree.1973.0098
- Type: Article
- + Show details - Hide details
-
p.
665
–674
(10)
The paper reviews the demands made on technology by the potential impact of fibre-optical communication systems. The reasons for the interest in this technology are discussed in terms of discounted cash flow for wideband transmission installation. The primary system requirements are identified and research aimed at developing fibre-optic cable, light sources and terminal sub-systems is described.Some typical system parameters which can reasonably be related to the present state of art are given. It is concluded that there is now little doubt that fibre optic communication will make a major impact on transmission technology. It is further suggested that the greatest impact may be in opening up new fields of telecommunication.
Use of laser amplifiers in a glass-fibre communications system
- Author(s): G. Zeidler and D. Schicketanz
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 675 –682
- DOI: 10.1049/ree.1973.0099
- Type: Article
- + Show details - Hide details
-
p.
675
–682
(8)
A glass-fibre communications system using travelling-wave amplifiers operating on the laser principle is studied. The propagation characteristics of such a system are investigated theoretically with the aid of the mean value and variance of the statistical distribution of the number of photons. When linear optical amplifiers are used, the noise increases at each stage on account of spontaneous emission in the amplifier, thereby limiting the length of the transmission range. The maximum transmission range increases with the magnitude of the input signal and decreases with the gain per stage and the number modes.
Effect of loss on propagation in multimode fibres
- Author(s): W.A. Gambling ; D.N. Payne ; H. Matsumura
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 683 –688
- DOI: 10.1049/ree.1973.0100
- Type: Article
- + Show details - Hide details
-
p.
683
–688
(6)
An analysis is given of propagation in multimode optical fibres having finite transmission loss. Using experimentally-deduced values for the cladding loss, fibre dispersions are calculated for a range of input beam widths and are compared with experiment. It is shown that the core loss has little effect on dispersion. Cladding loss reduces dispersion for a relatively small increase in attenuation, while dispersion and attenuation become non-linear functions of length.
Design of a staggered-p.r.f. moving target indication filter
- Author(s): James K. Hsiao and Frank F. Kretschmer
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 689 –694
- DOI: 10.1049/ree.1973.0101
- Type: Article
- + Show details - Hide details
-
p.
689
–694
(6)
To avoid blind speed phenomena, staggered-p.r.f. m.t.i. systems are used in modern radars for detection of high-speed targets. In this paper a procedure is presented which considers both the effect of filter weights and the interpulse durations. The goal of this procedure is to yield an m.t.i. response with minimum variations in the pass-band and maximum attenuation in the stop-band.
The frequency limitations of a gyrator circuit
- Author(s): H.G. Brierley
- Source: Radio and Electronic Engineer, Volume 43, Issue 11, p. 695 –702
- DOI: 10.1049/ree.1973.0102
- Type: Article
- + Show details - Hide details
-
p.
695
–702
(8)
An approximate analysis of the Rao–Newcomb gyrator circuit is presented. It is justified by comparison of its predictions for the y-parameters of the gyrator with predictions based on computation by general-circuit-analysis program and with predictions based on admittance measurements. The unconditional stability, passivity and performance Jimitations of the gyrator are discussed.
Most viewed content for this Journal
Article
content/journals/ree
Journal
5
Most cited content for this Journal
We currently have no most cited data available for this content.
