About: http://webisa.webdatacommons.org/240409101

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	an overcladding layer covering the waveguide layer and having a lower refractive index than that of the waveguide layer; wherein the undercladding layer is a substrate and the waveguide layer is formed from an optical functional material
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com