A new gas detection technique through cross-correlation with a complex aperiodic FBG
Abstract Optical cross-correlation is a technique that can achieve both high specificity and high sensitivity when deployed as the basis for a sensing technology. Offering significant gains in cost, size and complexity, it can also deliver significantly higher signal-to-noise ratios than traditional...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-04-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-024-59841-7 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846158542608793600 |
|---|---|
| author | Matthew Rahme Peter Tuthill Christopher Betters Maryanne Large Sergio Leon-Saval |
| author_facet | Matthew Rahme Peter Tuthill Christopher Betters Maryanne Large Sergio Leon-Saval |
| author_sort | Matthew Rahme |
| collection | DOAJ |
| description | Abstract Optical cross-correlation is a technique that can achieve both high specificity and high sensitivity when deployed as the basis for a sensing technology. Offering significant gains in cost, size and complexity, it can also deliver significantly higher signal-to-noise ratios than traditional approaches such as absorption methodologies. In this paper, we present an optical cross-correlation technology constructed around a bespoke customised Fiber Bragg Grating (FBG). Exploiting the remarkable flexibility in design enabled by multiple aperiodic Bragg gratings, optical filters are devised that exactly mimic the absorption features of a target gas species (for this paper, acetylene $$C_2H_2$$ C 2 H 2 ) over some waveband of interest. This grating forms the heart of the sensor architecture described here that employs modulated optical cross-correlation for gas detection. An experimental demonstration of this approach is presented, and shown to be capable of differentiating between different concentrations of the $$C_2H_2$$ C 2 H 2 target gas. Furthermore these measurements are shown to be robust against interloper species, with minimal impact on the detection signal-to-noise arising from the introduction of contaminant gases. This represents is a significant step toward the use of customised FBGs as low-cost, compact, and highly customisable photonic devices for deployment in gas detection. |
| format | Article |
| id | doaj-art-a81b2e4ba3a74a7cae092a8658f639c3 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-a81b2e4ba3a74a7cae092a8658f639c32024-11-24T12:25:54ZengNature PortfolioScientific Reports2045-23222024-04-011411910.1038/s41598-024-59841-7A new gas detection technique through cross-correlation with a complex aperiodic FBGMatthew Rahme0Peter Tuthill1Christopher Betters2Maryanne Large3Sergio Leon-Saval4Sydney Astrophotonics Instrumentation Laboratory, School of Physics, The University of SydneySydney Astrophotonics Instrumentation Laboratory, School of Physics, The University of SydneySydney Astrophotonics Instrumentation Laboratory, School of Physics, The University of SydneySydney Astrophotonics Instrumentation Laboratory, School of Physics, The University of SydneySydney Astrophotonics Instrumentation Laboratory, School of Physics, The University of SydneyAbstract Optical cross-correlation is a technique that can achieve both high specificity and high sensitivity when deployed as the basis for a sensing technology. Offering significant gains in cost, size and complexity, it can also deliver significantly higher signal-to-noise ratios than traditional approaches such as absorption methodologies. In this paper, we present an optical cross-correlation technology constructed around a bespoke customised Fiber Bragg Grating (FBG). Exploiting the remarkable flexibility in design enabled by multiple aperiodic Bragg gratings, optical filters are devised that exactly mimic the absorption features of a target gas species (for this paper, acetylene $$C_2H_2$$ C 2 H 2 ) over some waveband of interest. This grating forms the heart of the sensor architecture described here that employs modulated optical cross-correlation for gas detection. An experimental demonstration of this approach is presented, and shown to be capable of differentiating between different concentrations of the $$C_2H_2$$ C 2 H 2 target gas. Furthermore these measurements are shown to be robust against interloper species, with minimal impact on the detection signal-to-noise arising from the introduction of contaminant gases. This represents is a significant step toward the use of customised FBGs as low-cost, compact, and highly customisable photonic devices for deployment in gas detection.https://doi.org/10.1038/s41598-024-59841-7Fiber Bragg gratingsCross-correlation spectroscopyOptical filtersGas detection |
| spellingShingle | Matthew Rahme Peter Tuthill Christopher Betters Maryanne Large Sergio Leon-Saval A new gas detection technique through cross-correlation with a complex aperiodic FBG Scientific Reports Fiber Bragg gratings Cross-correlation spectroscopy Optical filters Gas detection |
| title | A new gas detection technique through cross-correlation with a complex aperiodic FBG |
| title_full | A new gas detection technique through cross-correlation with a complex aperiodic FBG |
| title_fullStr | A new gas detection technique through cross-correlation with a complex aperiodic FBG |
| title_full_unstemmed | A new gas detection technique through cross-correlation with a complex aperiodic FBG |
| title_short | A new gas detection technique through cross-correlation with a complex aperiodic FBG |
| title_sort | new gas detection technique through cross correlation with a complex aperiodic fbg |
| topic | Fiber Bragg gratings Cross-correlation spectroscopy Optical filters Gas detection |
| url | https://doi.org/10.1038/s41598-024-59841-7 |
| work_keys_str_mv | AT matthewrahme anewgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT petertuthill anewgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT christopherbetters anewgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT maryannelarge anewgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT sergioleonsaval anewgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT matthewrahme newgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT petertuthill newgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT christopherbetters newgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT maryannelarge newgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg AT sergioleonsaval newgasdetectiontechniquethroughcrosscorrelationwithacomplexaperiodicfbg |