Journal of the Institute of Electronics Engineers of Korea SD (대한전자공학회논문지SD)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

The Hydrogen Loading Method for FBG Fabrication

광섬유격자 제작을 위한 수소 처리 방법 연구

  • Song, Jeong-Hwan (Engineering and R&D Group Optical Communication Products Division Information and Telecommunication Business SAMSUNG ELECTRONICS CO. LTD) ;
  • Lee, Kyung-Shik (The School of Electrical and Computer Engineering SungKyunKwan University)
  • 송정환 (三星電子(株) 情報通信總括 光素材事業팀 技術開發그룹) ;
  • 이경식 (成均館大學校 電氣電子 및 컴퓨터 工學部)
  • Published : 2000.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

The relationship between calculated hydrogen molecular concentration in fiber core and measured index change during the grating growth is analyzed. The index change increases by ${\sim}2{\times}10^{-5}$ per 100ppm of $H_2$ concentration in standard telecommunication optical fiber and the defects related photosensitivity generate ${\sim}3.8{\times}10^{17}$ per 100ppm of $H_2$.

다양한 수소처리 조건에 의하여 수소 처리된 광섬유에 광섬유 격자를 제작하여, 광섬유 코어 내에 포화된 수소분자 농도와 광섬유 격자의 굴절률 변화폭(photoinduced index modulation)과의 관계를 분석하여 보았다. 실험으로 측정된 광섬유 결자의 굴절률 변화폭은 코어 내에 수소분자 농도가 100ppm 증가함에 따라서 ${\sim}2{\times}10^{-5}$만큼 증가하였다. 그리고 광감도현상에 관여하는 전체결함, 즉 GeE' 센터와 GeH결함은 포화된 수소농도 100ppm 당 대략 $3.8{\times}10^{17}/cm^3$ 만큼 많아지는 것으로 추정된다.

Keywords

References

  1. Raman Kashyap, Fiber Brogg Gratings, Academic Press, San Dieg and London, 1999
  2. Andreas Othonos, 'Fiber Bragg gratings,' AIP Review of Scientific Instruments, Vol.68, No.12, pp.4309-4341, Dec. 1997 https://doi.org/10.1063/1.1148392
  3. D. L. Williams, B. J. Airislle, J. R. Armitage, R. Kashyap and R. Campbel, 'ENHANCED UV PHOTOSENSITIVITY IN BORON CODOPED GERMANOSILICATE FIBRES,' Electronics Letters, Vol.29, No.1, pp.45-47, 1993 https://doi.org/10.1049/el:19930030
  4. L. Dong, J. L. Cruz, J. A Tucknott, L. Reekie, and D. N. Payne, 'Strong photosensitive gratings in tin-doped phosphosilicate optical fibers,' Optics Letters, Vol.20, No.19, pp.1982-1984, 1995
  5. E. M. Dianov, K. M. Golanr, V. M. Mashinsky, O. I. Medvedkov, I. V. Nikolin, O. D. Sazhin and S. A. Vasiliev, 'Highly photosensitive nitrogen-doped germanosilicate fibre for index grating writing,' Electronics Letters, Vol.33, No.15, pp.1334-1336, 1997 https://doi.org/10.1049/el:19970900
  6. F. bilodeau, B. Malo, J. Albert, D. C. Johnson, and K O. Hill, 'Photosensitization of optical fiber and silica-on-silicon/silica waveguides,' Optics Letters, Vol.18, No.12, pp.953-955, 1993
  7. P. J. Lemaire, R. M. Atkins, V. Mizrhi and W. A. Reed, 'HIGH PRESSURE H2 LOADING AS A TECHNIQUE FOR ACHIEVING ULTRAHIGH UV PHOTOSENSITIVITY AND THERMAL SENSITIVITY IN GeO$_2$ DOPED OPTICAL FIBRES,' Electronics Letters, Vol.29, No.13, pp.1191-1193, 1993
  8. A .D. Heaney and T. Erdogan, 'The significance of oxygen-deficient defects to the photosensitivity of hydrogen-loaded germanosilicate glass,' Journal of Applied Physics, Vol.85, No.11, pp.7573-7578, 1999 https://doi.org/10.1063/1.370557
  9. Tsung-Ein Tsai, Glen M. Williams, and E. Joseph Friebele, 'Index structure of fiber Brag gratings in Ge-SiO$_2$ fibers,' Optics Letters, Vol.22, No.4, pp.224-226, 1997
  10. T. A. Nguty and R. J. Potton, 'Photochemical change in hydrogen-loaded optical fibers with application to Bragg grating formation,' Measurements Science and Technology, Vol.8, pp.1055-1058, 1997 https://doi.org/10.1088/0957-0233/8/10/004
  11. Paul J. Lemaire, 'Reliability of optical fibers exposed to hydrogen: prediction of long-term loss increases,' Optical Engineering, Vol.30, No.6, pp.780-789, 1991 https://doi.org/10.1117/12.55865
  12. Lon A. WANG, Chih Wei HSU and Hsuen Li CHEN, 'Characteristics of Deuterium-Loaded Fiber Bragg Gratings,' Japanese Journal of Applied Physics, Vol.37, Part 1, No.11, pp.6001-6006, 1998
  13. Atkins, et al, 'METHIOD OF MAKING AN ARTICLE COMPRISING AN OPTICAL WAVEGUIDE,' Unite States Patent, Patent No.5,235,659, 1993
  14. Koichi Awazu, 'Comments on 'Thermal and photo-initiated reactions of $H_2$ with germanosilicate optical fibers',' Journal of Non-Crystalline Solids 201, pp.267-271, 1996 https://doi.org/10.1016/0022-3093(96)00398-5