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Self-heterodyne coherent optical frequency-domain reflectometer

Self-heterodyne coherent optical frequency-domain reflectometer

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A high sensitivity coherent optical frequency-domain reflectometer (OFDR) is presented, for measurements of pigtailed optical devices with centimetre resolution. Unique interpretation of the reflectivity data is achieved by frequency shifting the reference reflection and using optical heterodyne detection.

Inspec keywords: optical time-domain reflectometry; reflectometers; demodulation

Other keywords: optical frequency-domain reflectometer; centimetre resolution; self-heterodyne coherent OTDR; optical heterodyne detection; reference reflection; high sensitivity; frequency shifting; pigtailed optical device measurements

Subjects: Optical refractometry and reflectometry; Optical variables measurement

References

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