Ring lasers are composed of two beams of light of the same polarization traveling in opposite directions ("counter-rotating") in a closed loop. Ring lasers are used most frequently as gyroscopes (ring laser gyroscope) in moving vessels like cars, ships, planes, and missiles. The world's largest ring lasers can detect details of the Earth's rotation. Such large rings are also capable of extending scientific research in many new directions, including the detection of gravitational waves, Fresnel drag, Lense-Thirring effect, and quantum-electrodynamic effects.
| Property |
Value |
| dbo:abstract |
Ring lasers are composed of two beams of light of the same polarization traveling in opposite directions ("counter-rotating") in a closed loop. Ring lasers are used most frequently as gyroscopes (ring laser gyroscope) in moving vessels like cars, ships, planes, and missiles. The world's largest ring lasers can detect details of the Earth's rotation. Such large rings are also capable of extending scientific research in many new directions, including the detection of gravitational waves, Fresnel drag, Lense-Thirring effect, and quantum-electrodynamic effects. In a rotating ring laser gyroscope, the two counter-propagating waves are slightly shifted in frequency and an interference pattern is observed, which is used to determine the rotational speed. The response to a rotation is a frequency difference between the two beams, which is proportional to the rotation rate of the ring laser (Sagnac effect). The difference can easily be measured.Generally however, any non reciprocity in the propagation between the two beams leads to a beat frequency. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Ring_Laser_with_light_inside_632.8_nm.png?width=300 |
| dbo:wikiPageID |
5298619 (xsd:integer) |
| dbo:wikiPageLength |
34683 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
1050968177 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbr:Quantum_electrodynamics dbr:Rotational_speed dbr:Light dbr:List_of_laser_articles dbr:Geodetic_Observatory_Wettzell dbr:Christchurch dbr:Frequency dbr:General_relativity dbr:Gravitational_waves dbr:Faraday_effect dbr:Ring_laser_gyroscope dbc:Laser_types dbr:Aether_drag_hypothesis dbr:Laser dbr:Polarization_(waves) dbr:Fiber_laser dbr:Gyroscopes dbr:Semiconductor_ring_laser dbr:Wavelength dbr:Fiber_optics dbr:Optical_ring_resonators dbr:Sagnac_effect dbr:Ring_Lasers_for_Research dbr:Beat_frequency dbr:Lense-Thirring_effect dbr:Interference_pattern dbr:US_patent_office dbr:File:Ring_Laser_with_light_inside_632.8_nm.png |
| dbp:wikiPageUsesTemplate |
dbt:Chem dbt:Convert dbt:Math dbt:Reflist |
| dcterms:subject |
dbc:Laser_types |
| rdf:type |
yago:WikicatLasers yago:Artifact100021939 yago:Device103183080 yago:Instrumentality103575240 yago:Laser103643253 yago:Object100002684 yago:OpticalDevice103851341 yago:PhysicalEntity100001930 yago:Whole100003553 |
| rdfs:comment |
Ring lasers are composed of two beams of light of the same polarization traveling in opposite directions ("counter-rotating") in a closed loop. Ring lasers are used most frequently as gyroscopes (ring laser gyroscope) in moving vessels like cars, ships, planes, and missiles. The world's largest ring lasers can detect details of the Earth's rotation. Such large rings are also capable of extending scientific research in many new directions, including the detection of gravitational waves, Fresnel drag, Lense-Thirring effect, and quantum-electrodynamic effects. (en) |
| rdfs:label |
Ring laser (en) |
| owl:sameAs |
freebase:Ring laser wikidata:Ring laser https://global.dbpedia.org/id/4uGsr |
| prov:wasDerivedFrom |
wikipedia-en:Ring_laser?oldid=1050968177&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/Ring_Laser_with_light_inside_632.8_nm.png |
| foaf:isPrimaryTopicOf |
wikipedia-en:Ring_laser |
| is dbo:knownFor of |
dbr:Geoff_Stedman |
| is dbo:wikiPageRedirects of |
dbr:Ring_lasers_for_research dbr:Ring_Lasers_for_Research dbr:Ring_lasers dbr:Large_Ring_Lasers_for_Research |
| is dbo:wikiPageWikiLink of |
dbr:Ronald_Mallett dbr:Index_of_physics_articles_(R) dbr:List_of_laser_articles dbr:Geodetic_Observatory_Wettzell dbr:Geoff_Stedman dbr:Helium–neon_laser dbr:January–March_2020_in_science dbr:Laser_pumping dbr:Ring_laser_gyroscope dbr:Ring_lasers_for_research dbr:Semiconductor_ring_laser dbr:Ikeda_map dbr:Fizeau_experiment dbr:Optical_ring_resonators dbr:Sagnac_effect dbr:Ring_Lasers_for_Research dbr:Ring_lasers dbr:Large_Ring_Lasers_for_Research |
| is foaf:primaryTopic of |
wikipedia-en:Ring_laser |
