Optical transmission system suitable for video-communication cab

Details Optical transmission system suitable for video-communication cab Optical transmission system suitable for video-communication cab

1995-11-24

1997-08-12

Chin, Wellington

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359161, H04J 1402

Patent

active

056571437

ABSTRACT:
A system for transmission on an optical link by modulating an optical carrier suitable for video-communication cable networks, includes devices for increasing the modulation of the optical carrier, such as increasing the intensity modulation. The system is particularly suited for the case in which a high input optical power is coupled into the optical link. Also, the modulation can be increased from a null value if the modulation is other than intensity modulation, in order to prevent or to reduce phenomena degrading transmission quality associated with the Brillouin effect.

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Journal of Lightwave Technology, vol. 9, No. 9, Sep. 1991, New York, US, pp. 1145-1155, T. Sugie: "Transmission Limitations of CPFSK Coherent Lightwave Systems Due to Stimulated Brillouin Scattering in Optical Fiber".
IEEE Photonics Technology Letters vol. 4, No. 3, Mar. 1992, New York, US, pp. 287-289, X.P. Mao et al.: "Brillouin Scattering in Externally Modulated Lightwave AM-VSB CATV Transmission Systems".

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