Optical transmission system with optical filter for providing protection against giant pulses
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United States of America Patent
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May 31, 1994
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N/A
app pub date -
Jun 21, 1993
filing date -
Jul 7, 1992
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Abstract
In optical transmission systems with fiber-optic amplifiers, an interruption of the fiber-optic link, e.g., due to fiber breakage, may cause a giant pulse to develop. To prevent the giant pulse from propagating in the fiber-optic link, an optical filter (7) which blocks the wavelength region of the pulse is placed in the fiber-optic link. The wavelength of the optical signal must be chosen to lie outside the wavelength region of the maximum gain of the fiber-optic amplifier.
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