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US 9,438,335 B2Granted
Optical fiber defect detection
AssigneeTexas Instruments Incorporated
InventorNagarajan Viswanathan
Life of this patent
Estimating the term…
Abstract
An optical data transmitter is operable to transmit data other than test data on an optical fiber at a first wavelength and an optical time domain reflectometer is operable to receive data from the optical fiber at the first wavelength and to use the received data at the first wavelength to determine whether a defect exists in the optical fiber.
Claims20
An optical communication system, comprising:
- an optical data transmitter operable to transmit data other than test data on an optical fiber at a first wavelength;
- and
- an optical time domain reflectometer operable to receive data from the optical fiber at the first wavelength, to use the received data at the first wavelength to determine whether a defect exists in the optical fiber, to cross-correlate multiple sets of the received data and transmitted data, and to average the resulting cross-correlation values.
A method for defect detection in an optical fiber, comprising:
- transmitting, by an optical data transmitter, data other than test data on an optical fiber at a first wavelength;
- receiving, by an optical time domain reflectometer, data on the optical fiber at the first wavelength;
- and
- cross-correlating, by a correlator, multiple sets of the received data and transmitted data;
- and
- determining, by a controller, from the transmitted and received data, whether there is a defect in the optical fiber.
3 more elements
An optical communication system, comprising:
- an optical data transmitter operable to transmit data on an optical fiber at a particular wavelength;
- an optical time domain reflectometer operable to receive data from the optical fiber at the particular wavelength;
- a correlator operable to cross-correlate the received data and the transmitted data;
- and
- the optical communication system further operable to cross-correlate multiple sets of received data and transmitted data and to average the resulting cross-correlation values.
2 more elements
Dependencies are inferred from the claim text.