About: http://webisa.webdatacommons.org/23737686

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Two parts of a beam provided by a source to be monitored, particularly a laser, are directed to two double-wave interferometers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com