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Title: Method for transmitting analog data over a fiber-optic link

Abstract

The transmission of high-speed analog data across an insulating break is a common requirement for present fusion experiments, and it will be a necessity for a reactor-like device. Presently available systems tend to be complex, slow, and expensive. A method is described for implementing a fiber-optic link with analog data input and output. Two realizations of the method are given. A medium-speed system using monolithic circuitry is capable of a dc to 20-KHz bandwidth with excellent linearity and a dynamic range of at least 60 dB. A higher-speed system uses some discrete circuitry to attain a 500-KHz bandwidth with at least a 40-dB dynamic range. Both systems use a relatively inexpensive digital optical link kit combined with a duty cycle modulation scheme for data transmission. This method achieves accurate reproduction of complex waveforms without introducing the quantization errors inherent in analog-to-digital conversion, offers bipolar response with low offset and drift, and maintains a constant bandwidth regardless of signal level.

Authors:
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5192541
Report Number(s):
CONF-811040-210-Draft
ON: DE84006578
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Conference
Resource Relation:
Conference: 9. symposium on engineering problems of fusion research, Chicago, IL, USA, 26 Oct 1981; Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; FIBER OPTICS; THERMONUCLEAR REACTORS; DATA PROCESSING; DIGITAL SYSTEMS; SIGNALS; PROCESSING; 700209* - Fusion Power Plant Technology- Component Development & Materials Testing

Citation Formats

Dyer, G R. Method for transmitting analog data over a fiber-optic link. United States: N. p., 1981. Web.
Dyer, G R. Method for transmitting analog data over a fiber-optic link. United States.
Dyer, G R. Thu . "Method for transmitting analog data over a fiber-optic link". United States.
@article{osti_5192541,
title = {Method for transmitting analog data over a fiber-optic link},
author = {Dyer, G R},
abstractNote = {The transmission of high-speed analog data across an insulating break is a common requirement for present fusion experiments, and it will be a necessity for a reactor-like device. Presently available systems tend to be complex, slow, and expensive. A method is described for implementing a fiber-optic link with analog data input and output. Two realizations of the method are given. A medium-speed system using monolithic circuitry is capable of a dc to 20-KHz bandwidth with excellent linearity and a dynamic range of at least 60 dB. A higher-speed system uses some discrete circuitry to attain a 500-KHz bandwidth with at least a 40-dB dynamic range. Both systems use a relatively inexpensive digital optical link kit combined with a duty cycle modulation scheme for data transmission. This method achieves accurate reproduction of complex waveforms without introducing the quantization errors inherent in analog-to-digital conversion, offers bipolar response with low offset and drift, and maintains a constant bandwidth regardless of signal level.},
doi = {},
url = {https://www.osti.gov/biblio/5192541}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {10}
}

Conference:
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