Cable system
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 25, 2025
Grant Date -
Dec 15, 2022
app pub date -
Oct 12, 2020
filing date -
Oct 12, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
To apply an optical amplification repeater device to optical fiber sensing to lengthen a sensing range, as well as to enable compatibility with an optical communication system a cable system that uses a cable for optical fiber communication and optical fiber sensing of an environment surrounding the cable, wherein: the optical fiber communication is bidirectional communication using optical fiber pairs which are pairs of the optical fiber; in an optical fiber, a first wavelength band and a second wavelength band are different from each other; an optical amplification unit included in the optical amplification repeater device includes a first amplifier and a second amplifier that amplify rays of light in mutually opposing directions; and each of the communication optical signal, the probe light, and the backscattering light is amplified by at least either the first amplifier or the second amplifier.
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