title: Fabrication of hollow waveguides for CO2 lasers.
abstract: Germanium-coated metal (silver, gold, and copper) hollow waveguides for CO(2) laser energy delivery have been fabricated by electron-beam evaporation and plating techniques in which an acid-soluble glass mandrel with small surface roughness was used. The transmission characteristics of Ge-coated metal hollow waveguides were studied. Ge-coated Ag hollow waveguides showed smaller loss, 0.2 dBm, for CO(2) laser light than Ge-coated Au and Cu waveguides. The transmission characteristics of Ge-coated Ag hollow waveguides were measured in relation to a core diameter and a bending radius.
authors.affiliation: Machida Endoscope Company, Ltd., 6-13-8 Honkomagome, Bunkyo-ku, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Komachi
authors.forename: M
authors.initials: M
authors.lastname: Wakaki
authors.forename: G
authors.initials: G
authors.lastname: Kanai