Title :
Optical fiber audio and video communication system using AOM and LED
Author :
Rabou, Nabil Abd ; Ikeda, Hiroaki ; Yoshida, Hirofumi
Author_Institution :
Fac. of Eng., Shizuoka Univ., Hamamatsu, Japan
Abstract :
This paper describes the construction and performance of the single-mode (SM) optical fiber communication system utilizing the acousto-optic modulator (AOM) technique for modulation of audio and video signals. An edge-emitting LED (ELED) at an optical wavelength of 1300 nm was used as a light source. The output frequency response for the direct (Oth) and diffracted (1st) beams from the AOM used together with the ELED were flat over the frequency range of 50 Hz to 6 MHz. The differential gain (DG) and differential phase (DP) of the video signal were less than 5%, and 5 degrees, respectively, and the signal-to-noise ratio (SNR) was approximately 56 dB
Keywords :
acousto-optical modulation; audio signals; frequency modulation; light emitting diodes; optical fibre communication; video signals; visual communication; voice communication; 1300 nm; 50 Hz to 6 MHz; 56 dB; acousto-optic modulator; edge-emitting LED; optical fiber audio/video communication system; output frequency response; single-mode optical fiber; Frequency response; Light emitting diodes; Light sources; Modular construction; Optical diffraction; Optical fiber communication; Optical fibers; Optical modulation; Samarium; Structural beams;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.666219
