Comparison of fiber-optic Sagnac and Mach-Zehnder interferometers with respect to thermal processes in the fiber
The impact of thermal noise in the fiber on the noise power and signal-to-noise ratio (SNR) of fiber-optic sensors is investigated, and sensors based on the Sagnac and the Mach-Zehnder interferometers are compared. The SNR is almost the same for the two interferometers; the Mach-Zehnder interferomet...
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| Veröffentlicht in: | Journal of lightwave technology 1995-04, Vol.13 (4), p.682-686 |
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| container_end_page | 686 |
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| container_title | Journal of lightwave technology |
| container_volume | 13 |
| creator | Krakenes, K. Blotekjaer, K. |
| description | The impact of thermal noise in the fiber on the noise power and signal-to-noise ratio (SNR) of fiber-optic sensors is investigated, and sensors based on the Sagnac and the Mach-Zehnder interferometers are compared. The SNR is almost the same for the two interferometers; the Mach-Zehnder interferometer has slightly higher SNR at low frequencies, whereas the Sagnac interferometer may have a few dB higher SNR at high frequencies. It is also shown that thermal noise may dominate over shot noise for realistic system parameters, in which case a Sagnac interferometer has several advantages over a Mach-Zehnder interferometer.< > |
| doi_str_mv | 10.1109/50.372481 |
| format | Article |
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The SNR is almost the same for the two interferometers; the Mach-Zehnder interferometer has slightly higher SNR at low frequencies, whereas the Sagnac interferometer may have a few dB higher SNR at high frequencies. It is also shown that thermal noise may dominate over shot noise for realistic system parameters, in which case a Sagnac interferometer has several advantages over a Mach-Zehnder interferometer.< ></description><identifier>ISSN: 0733-8724</identifier><identifier>EISSN: 1558-2213</identifier><identifier>DOI: 10.1109/50.372481</identifier><identifier>CODEN: JLTEDG</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Circuit properties ; Electric, optical and optoelectronic circuits ; Electronics ; Exact sciences and technology ; Frequency ; Low-frequency noise ; Miscellaneous ; Optical and optoelectronic circuits ; Optical fiber sensors ; Optical fibers ; Optical interferometry ; Optical noise ; Phase modulation ; Sagnac interferometers ; Signal to noise ratio ; Thermal sensors</subject><ispartof>Journal of lightwave technology, 1995-04, Vol.13 (4), p.682-686</ispartof><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c221t-7af5ab5c919cddd072b4a4fa16be9661eb5e1b2c5c695ab744cc27831444403a3</citedby><cites>FETCH-LOGICAL-c221t-7af5ab5c919cddd072b4a4fa16be9661eb5e1b2c5c695ab744cc27831444403a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/372481$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54737</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/372481$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3499837$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Krakenes, K.</creatorcontrib><creatorcontrib>Blotekjaer, K.</creatorcontrib><title>Comparison of fiber-optic Sagnac and Mach-Zehnder interferometers with respect to thermal processes in the fiber</title><title>Journal of lightwave technology</title><addtitle>JLT</addtitle><description>The impact of thermal noise in the fiber on the noise power and signal-to-noise ratio (SNR) of fiber-optic sensors is investigated, and sensors based on the Sagnac and the Mach-Zehnder interferometers are compared. The SNR is almost the same for the two interferometers; the Mach-Zehnder interferometer has slightly higher SNR at low frequencies, whereas the Sagnac interferometer may have a few dB higher SNR at high frequencies. It is also shown that thermal noise may dominate over shot noise for realistic system parameters, in which case a Sagnac interferometer has several advantages over a Mach-Zehnder interferometer.< ></description><subject>Applied sciences</subject><subject>Circuit properties</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Frequency</subject><subject>Low-frequency noise</subject><subject>Miscellaneous</subject><subject>Optical and optoelectronic circuits</subject><subject>Optical fiber sensors</subject><subject>Optical fibers</subject><subject>Optical interferometry</subject><subject>Optical noise</subject><subject>Phase modulation</subject><subject>Sagnac interferometers</subject><subject>Signal to noise ratio</subject><subject>Thermal sensors</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNpFkM1LxDAQxYMouK4evHrKQQQPXZMmadqjLH7Bigf14qVM06mNtE1Nuoj_vZEuepph5vceb4aQU85WnLPiSrGV0KnM-R5ZcKXyJE252CcLpoVI8rg5JEchfDDGpcz1goxr14_gbXADdQ1tbIU-ceNkDX2G9wEMhaGmj2Da5A3boUZP7TChb9C7HmMT6JedWuoxjGgmOjk6teh76OjoncEQMETF73A2PyYHDXQBT3Z1SV5vb17W98nm6e5hfb1JTEw8JRoaBZUyBS9MXddMp5UE2QDPKiyyjGOlkFepUSYrIqilNCbVuYhnSckEiCW5mH1jjM8thqnsbTDYdTCg24YyzVOmi1xF8HIGjXcheGzK0dse_HfJWfn701Kxcv5pZM93phAMdI2HwdjwJxCyKHKhI3Y2YxYR_7ezxw8gRn-c</recordid><startdate>19950401</startdate><enddate>19950401</enddate><creator>Krakenes, K.</creator><creator>Blotekjaer, K.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>19950401</creationdate><title>Comparison of fiber-optic Sagnac and Mach-Zehnder interferometers with respect to thermal processes in the fiber</title><author>Krakenes, K. ; Blotekjaer, K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c221t-7af5ab5c919cddd072b4a4fa16be9661eb5e1b2c5c695ab744cc27831444403a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Applied sciences</topic><topic>Circuit properties</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Frequency</topic><topic>Low-frequency noise</topic><topic>Miscellaneous</topic><topic>Optical and optoelectronic circuits</topic><topic>Optical fiber sensors</topic><topic>Optical fibers</topic><topic>Optical interferometry</topic><topic>Optical noise</topic><topic>Phase modulation</topic><topic>Sagnac interferometers</topic><topic>Signal to noise ratio</topic><topic>Thermal sensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Krakenes, K.</creatorcontrib><creatorcontrib>Blotekjaer, K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of lightwave technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Krakenes, K.</au><au>Blotekjaer, K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of fiber-optic Sagnac and Mach-Zehnder interferometers with respect to thermal processes in the fiber</atitle><jtitle>Journal of lightwave technology</jtitle><stitle>JLT</stitle><date>1995-04-01</date><risdate>1995</risdate><volume>13</volume><issue>4</issue><spage>682</spage><epage>686</epage><pages>682-686</pages><issn>0733-8724</issn><eissn>1558-2213</eissn><coden>JLTEDG</coden><abstract>The impact of thermal noise in the fiber on the noise power and signal-to-noise ratio (SNR) of fiber-optic sensors is investigated, and sensors based on the Sagnac and the Mach-Zehnder interferometers are compared. The SNR is almost the same for the two interferometers; the Mach-Zehnder interferometer has slightly higher SNR at low frequencies, whereas the Sagnac interferometer may have a few dB higher SNR at high frequencies. It is also shown that thermal noise may dominate over shot noise for realistic system parameters, in which case a Sagnac interferometer has several advantages over a Mach-Zehnder interferometer.< ></abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/50.372481</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of lightwave technology, 1995-04, Vol.13 (4), p.682-686 |
| issn | 0733-8724 1558-2213 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28207985 |
| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Frequency Low-frequency noise Miscellaneous Optical and optoelectronic circuits Optical fiber sensors Optical fibers Optical interferometry Optical noise Phase modulation Sagnac interferometers Signal to noise ratio Thermal sensors |
| title | Comparison of fiber-optic Sagnac and Mach-Zehnder interferometers with respect to thermal processes in the fiber |
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