ArticleScientific reports2025
Sub pulse length event measurement in BOTDR system using slope assisted Brillouin frequency shift.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
To overcome the limitations by pulse width on the event zone measurement capability, a novel temperature demodulation scheme was proposed and validated to measure sub-pulse length event zones based on the slope-assisted Brillouin frequency shift (SA-BFS). Unlike the conventional BFS-based methods, this approach leverages the BFS slope for temperature demodulation, enabling precise measurement of sub-pulse-length event zones. We developed a theoretical model that established a linear relationship between the BFS slope and temperature, validated through simulations and experiments across various event zone lengths and pulse widths. Ultimately, the system's measurement capability was improved from 2 to 0.49 m, achieving a temperature demodulation of 57.75 °C on a 10.2 km sensing fiber, with a temperature accuracy approximately ten times higher than that of conventional demodulation schemes. The method of SA-BFS provided a transformative approach to measure physical quantities along the fiber, serving as a valuable tool for distributed optical fiber sensors such as BOTDR and BOTDA.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.