Title :
Low-loss lead fluoride-coated square waveguide for CO2 laser light transmission
Author :
Machida, H. ; Ishikawa, Hiroshi ; Miyagi, Masaya
Author_Institution :
Dept. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
Small-core (1 mm*1 mm) phosphor bronze square waveguide whose inner two or four walls are coated with a thin lead fluoride layer have been fabricated by using vacuum evaporation and assembly techniques. Straight waveguide transmissions as high as 80% are obtained even when the waveguides are bent with a bending radius of 50 cm in 1 m long waveguides.
Keywords :
laser accessories; lead compounds; optical losses; optical waveguides; rectangular waveguides; CO 2 gas laser; PbF 2 coated metallic waveguide; PbF 2-CuSnP; assembly techniques; laser light transmission; long dielectric-coated waveguide; low loss type; square waveguide; vacuum evaporation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911282
