Frequency-division multiplexing optical fiber transmission system applied in power system

Jinbo Kuang

doi:10.1117/12.2294834

1 July 1990 Frequency-division multiplexing optical fiber transmission system applied in power system

Jinbo Kuang

Proceedings Volume 1230, International Conference on Optoelectronic Science and Engineering '90; 12305H (1990) https://doi.org/10.1117/12.2294834
Event: The Marketplace for Industrial Lasers 1990, 1990, Chicago, IL, United States

Abstract

In power system, there are various detected analog signals which need transmission from detecting site to remote control room. These signals are usually transmitted by cable. An optical fiber transmission system has been developed in this paper. It is used to transmit multiple analog signals detected. It can ensure safety for control room and prevent the electric -magnetic interferences. The transmission way of multiplex needs only one optical fiber system (light emit component, optical fiber and opto-electronic receiving component) to transmit multiple signals. It can decrease the cost and it is quite convenient for operation and maintenance. Frequency-division multiplex is applied in this transmission system to transmit multiple signals. That is, the different transmitted signals are carried by electronic carrier waves of different frequency. LED is chosen as the light emit component of the optical fiber system for its nice linearity of P-I (emitted power with driving current) characteristic and long duration of work. The opto-electric receiving component of optical fiber system is an integrated device called PIN- FET, it receives and amplifies the light signal. The transmission system can transmit distortionlessly four analog signals whose cut-off frequency is 200KHz. It has been used for on-line detecting system of partial discharge.

Citation Download Citation

Jinbo Kuang "Frequency-division multiplexing optical fiber transmission system applied in power system", Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 12305H (1 July 1990); https://doi.org/10.1117/12.2294834

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