@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://astrothesaurus.org/uat/805>
  skos:prefLabel "Interferometers"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/989> .

<http://astrothesaurus.org/uat/989>
  skos:altLabel "Mach Zehnder modulators"@en, "Mach zehnder interferometers"@en, "Mach–Zehnder modulators"@en ;
  skos:broader <http://astrothesaurus.org/uat/1171>, <http://astrothesaurus.org/uat/805> ;
  skos:prefLabel "Mach-Zehnder interferometers"@en ;
  a skos:Concept .

<http://astrothesaurus.org/uat/1171>
  skos:prefLabel "Optical phase shifting interferometry"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/989> .