Title :
Infrared optical fibers with vapor-deposited cladding layer
Author :
Saito, Mitsunori ; Takizawa, Masaya ; Miyagi, Mitsunobu
Author_Institution :
Dept. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
Core-cladding structures constructed for KRS-5 polycrystalline and As/sub 2/S/sub 3/ glass infrared fibers by means of vapor deposition are discussed. In order to obtain high-numerical-aperture fibers, KRS-6 and AsS/sub 3/, respectively, have been used as cladding materials. A CO/sub 2/ laser beam of 15-20 W has been successfully transmitted through the KRS-5 fiber. For the As/sub 2/S/sub 3/ fiber an absorption loss due to Teflon coating has been reduced, and a loss of 0.13 dB/m has been achieved.<>
Keywords :
arsenic compounds; claddings; optical fibres; optical glass; optical losses; thallium compounds; 15 to 20 W; As/sub 2/S/sub 3/ glass; AsS/sub 3/; CO/sub 2/ laser beam; KRS-5; KRS-6; TlBr-TlI; TlCl-TlBr; absorption loss; core-cladding structures; infrared optical fibres; vapor-deposited cladding layer; Chemical vapor deposition; Coatings; Crystalline materials; Crystallization; Crystals; Fiber lasers; Glass; Optical fiber losses; Optical fibers; Optical materials;
Journal_Title :
Lightwave Technology, Journal of