Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Fiber Drawing Induced Defects in Silica Optical Fiber

광섬유 인선 공정에 의해 생성된 실리카 광섬유내 점결함

  • 안병길 (요업기술원 전자부품·소재본부) ;
  • 이종원 (요업기술원 전자부품·소재본부) ;
  • 김효태 (요업기술원 전자부품·소재본부)
  • Published : 2003.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

The fiber drawing process induced defects in silica fiber have been investigated. This study has focused on the Oxygen Deficient Centers (ODCs) and E' centers induced by the fiberization process in low-OH silica fibers. To investigate those defects induced by the fiberization process, the optical absorption spectrum and Electron Spin Resonance (ESR) have both been employed. The concentration of Oxygen Deficient Centers (ODCs) and E' centers are increased by the fiber drawing process. The population of defects in the neck-down region has also been investigated. The most significant generation of defects during fiber drawing process has been shown to occur in this region of silica preform. The population of defects is higher on the edge region than in the center of neck-down region.

광섬유 인선공정에 의해 생성된 실리카 유리내 점결함을 조사하였다. 본 연구에서는 특히 OH기가 적은 실리카 광섬유내 광섬유 인선 공정이 유발하는 oxygen deficient center와 E' center를 중점적으로 조사하였다. 광섬유 인선공정에 의해 oxygen deficient center 와 E’ center가 생성되었다는 것을 광학적 흡수대와 electron spin resonance를 이용하여 밝힐 수 있었다. 실리카 광섬유모재에서 가느다란 광섬유로 변환하는 neck-down 부분에서 점결함의 변화를 조사하였다. 점결함은 neck-down 부분에서 생성되며, 중심부분 보다 가장자리 부분에서 더 많은 점결함이 생성되었음을 알 수 있었다.

Keywords

References

  1. Appl. Phys. Lett. v.24 Effects of Ionizing Radiation on Transmission of Optical Fibers G.H.Sigel Jr.;B.D.Evans https://doi.org/10.1063/1.1655239
  2. Proc. IEEE v.68 Fabrication of Optical Waveguide by Outside Vapor Deposition Process P.C.Schultz https://doi.org/10.1109/PROC.1980.11828
  3. Proc. IEEE v.68 Materials and Processes for Preform Fabrication J.B.MacChesney https://doi.org/10.1109/PROC.1980.11826
  4. Proc. IEEE v.68 Materials and Processes for Preform Fabrication Vapor Phase Axial Depositon T.Izawa;N.Inagaki https://doi.org/10.1109/PROC.1980.11827
  5. J. Ceram. Soc. Jpn. v.99 no.10 Optical Properties and Structure of Defects in Silica Glass D.L.Griscom https://doi.org/10.2109/jcersj.99.923
  6. J. Non-cryst. Solids v.280 Photoluminescence at 1.9 eV in Synthetic Wet Silica M.Cannas;M.Leones https://doi.org/10.1016/S0022-3093(00)00374-4
  7. Phys. Rev. v.B38 Two Types of Oxygen-deficent Centers in Synthetic Silica Glass H.Imai;K.Arai;H.Imagawa;H.Hosono;Y.Abe https://doi.org/10.1103/PhysRevB.38.12772
  8. J. Non-cryst. Solids v.116 Bleaching of Peroxy Radical in SiO₂Glass with 5 eV Llight H.Hosono;R.A.Weeks https://doi.org/10.1016/0022-3093(90)90705-Q
  9. J. Appl. Phys. v.65 no.12 Defects and Optical Absorption Bands Induced by Surplus Oxygen in High-purity Synthetic Silica H.Nishikawa;R.Tohmon;Y.Ohki;K.Nagasawa;Y.Hama https://doi.org/10.1063/1.343242
  10. Appl. Phys. Lett. v.53 Two-photon Processes in Defect Formation by Excimer Lasers in Synthetic Silica Glass K.Arai;H.Imai;H.Hosono;Y.Abe;H.Imagawa https://doi.org/10.1063/1.100362
  11. Nuclear Instruments and Methods in Physics Research v.B191 Intrinsic Defects Induced by ß-irradiation in Silica S.Agnello;F.M.Gelardi;R.Boscaino;M.Cannas;B.Boizot;G.Petite https://doi.org/10.1016/S0168-583X(02)00546-3
  12. Solid State Commun. v.50 A New Intrinsic Defect in Amorphous SiO₂: Twofold Coordinated Silicon L.N.Skuja;A.N.Streletsky;A.B.Pakovuch https://doi.org/10.1016/0038-1098(84)90290-4