Novel approaches to optical reflectometry

The author reviews the fundamentals of optical reflectometry, including the standard optical time-domain reflectometry (OTDR) measurement. Some novel reflectometry schemes are described, including a spread-spectrum approach to long-range OTDR, as well as new optical frequency-domain reflectometry (O...

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Published in7th IEEE Conference on Instrumentation and Measurement Technology pp. 329 - 333
Main Author Newton, S.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1990
Subjects
Detectors
Dynamic range
Frequency measurement
High speed optical techniques
Measurement standards
Optical fiber testing
Optical modulation
Reflectometry
Spread spectrum communication
Time domain analysis
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Abstract The author reviews the fundamentals of optical reflectometry, including the standard optical time-domain reflectometry (OTDR) measurement. Some novel reflectometry schemes are described, including a spread-spectrum approach to long-range OTDR, as well as new optical frequency-domain reflectometry (OFDR) techniques that have proven useful for high-resolution measurements. These novel reflectometry techniques are suitable for testing both fiber links and small components. The spread-spectrum technique allows improved dynamic range without sacrificing resolution. High-speed modulators and detectors now allow the extension of OFDR techniques to high frequencies. Resulting measurements show a large dynamic range and resolution better than 4 mm.< >
AbstractList The author reviews the fundamentals of optical reflectometry, including the standard optical time-domain reflectometry (OTDR) measurement. Some novel reflectometry schemes are described, including a spread-spectrum approach to long-range OTDR, as well as new optical frequency-domain reflectometry (OFDR) techniques that have proven useful for high-resolution measurements. These novel reflectometry techniques are suitable for testing both fiber links and small components. The spread-spectrum technique allows improved dynamic range without sacrificing resolution. High-speed modulators and detectors now allow the extension of OFDR techniques to high frequencies. Resulting measurements show a large dynamic range and resolution better than 4 mm.< >
Author Newton, S.A.
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Snippet The author reviews the fundamentals of optical reflectometry, including the standard optical time-domain reflectometry (OTDR) measurement. Some novel...
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StartPage 329
SubjectTerms Detectors
Dynamic range
Frequency measurement
High speed optical techniques
Measurement standards
Optical fiber testing
Optical modulation
Reflectometry
Spread spectrum communication
Time domain analysis
Title Novel approaches to optical reflectometry
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