Bandwidth-division in digitally enhanced optical frequency domain reflectometry
نویسندگان
چکیده
منابع مشابه
Digitally Range-Gated Optical Frequency Domain Reflectometry
Summary: We present a new optical frequency domain reflectometry technique which permits high frequency sweep repetition rates without sacrificing range. This technique could thus be adapted for remote and distributed acoustic sensing over long
متن کاملOptimal detection bandwidth for phase-sensitive optical time-domain reflectometry
The spectrum of the temporal traces obtained from a phase-sensitive optical time-domain reflectometer is theoretically and experimentally analysed, demonstrating its dependence on the incident optical pulse shape. Numerical simulations and theoretical results are validated experimentally, showing a good matching for rectangular optical pulses. The influence of the photodetector bandwidth on the...
متن کاملCapabilities and Limitations of Coherent Optical Frequency–domain Reflectometry
Optical time-domain reflectometry (OTDR), originally developed by Barnoski and Jensen in 1976 [1], is now a well-established tool for non-destructive characterization of optical networks and components. In general an ideal reflectometry system would have a spatial resolution high enough to locate closely separated sites of reflection within the network under test. In addition the sensitivity wo...
متن کاملHigh-speed optical coherence domain reflectometry.
Optical coherence domain reflectometry (OCDR) has emerged as an attractive method for obtaining high-spatial-resolution (<10 Am) reflectance measurements of fiber-optic, integrated-optic, and biological structures.` 8 Most previous OCDR systems have achieved high sensitivity and dynamic range by using narrow-band heterodyne detection by piezoelectric path-length modulation and lock-in amplifier...
متن کاملHigh-reflectivity-resolution coherent optical frequency domain reflectometry using optical frequency comb source and tunable delay line.
We propose a high-reflectivity-resolution coherent optical frequency domain reflectometry (OFDR) with a novel scheme of delay shift averaging (DSAV) by using an optical frequency comb source and a tunable delay line to suppress the fading noise. We show theoretically and experimentally that the novel DSAV scheme is equivalent, in realizing a high reflectivity resolution, to our previously repor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2013
ISSN: 1094-4087
DOI: 10.1364/oe.21.004017