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US 2025/0146843 A1Published application
Inline fiber type identification
AssigneeNEC Laboratories America, Inc.
InventorsEzra Ip, Yue-Kai Huang, Giacomo Borraccini
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Abstract
Methods and systems for fiber identification include emitting a pump pulse on a fiber using a transponder. A Brillouin gain spectrum of reflected radiation from the pump pulse is measured using the transponder. A fiber type is determined corresponding to the Brillouin gain spectrum.
Claims20
A method for fiber type identification, comprising:
- emitting a pump pulse on a fiber using a transponder;
- measuring a Brillouin gain spectrum of reflected radiation from the pump pulse using the transponder;
- and
- determining a fiber type corresponding to the Brillouin gain spectrum.
1 more element
A system for fiber type identification, comprising:
- a hardware processor;
- and
- a memory that stores a computer program which, when executed by the hardware processor, causes the hardware processor to:
- trigger emission of a pump pulse on a fiber using a transponder;
- measure a Brillouin gain spectrum of reflected radiation from the pump pulse using the transponder;
- and
- determine a fiber type corresponding to the Brillouin gain spectrum.
4 more elements
A Brillouin optical time-domain analysis transponder, comprising:
- a frequency swept laser source;
- an acousto-optical modulator that generates a pump pulse from the frequency swept laser source;
- a photodetector that measures reflected radiation from the pump pulse along a fiber;
- and
- a digital signal processor that determines a Brillouin gain spectrum from the measured reflected radiation and determines a fiber type corresponding to the Brillouin gain spectrum.
2 more elements
Dependencies are inferred from the claim text.