Optical communications

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10554300
APP PUB NO 20190173578A1
SERIAL NO

16092524

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Abstract

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The present invention provides a method of indirectly determining the optical signal-noise ratio of an optical fibre communications link. In a test environment, the relationship between OSNR and pre-FEC BER (forward error-corrected bit error rate) is determined for a particular type of optical transponder. When a transponder of that type is connected to an optical communications link then the pre-FEC BER can be measured and the OSNR inferred from the pre-determined OSNR-BER relationship. The OSNR value can then be used to select a transponder modulation format or other transmission parameters.

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Patent Owner(s)

  • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Smith, Kevin London, GB 204 4338
Zhou, Yu London, GB 419 2537

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