Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication and Characteristics of the Fiber Device Based on Long-period Fiber Gratings at the Locations Under Applied Pressure

압력이 인가되는 지점에만 광섬유 장주기 격자가 형성되는 광섬유 소자 제작 및 특성 분석

  • Lee, Nam-Kwon (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Song, Jae-Won (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Park, Jae-Hee (Department of Electronics Engineering, Keimyung University)
  • 이남권 (경북대학교 전자전기컴퓨터학부) ;
  • 송재원 (경북대학교 전자전기컴퓨터학부) ;
  • 박재희 (계명대학교 전자공학과)
  • Published : 2005.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

An optical fiber device is fabricated that is formed LPFGs only where pressure is applied, and the characteristics of the device are investigated. The fabricated device is composed of a 60cm-long metallic rod, with long period gratings of $720\;{\mu}m$ on the upper side and a rubber cover. In this device, gratings are only formed when pressure was applied to a spot, to which pressure was applied, and the formed gratings had the same transmission property regardless of spot, to which pressure was applied. We measured the optical transmission property of the fabricated device and found its usability as an optical fiber load sensor to measure weight.

압력이 인가되는 지점에만 장주기 광섬유 격자가 형성되는 광섬유 소자를 제작하였고, 제작된 소자의 특성을 조사하였다. 제작된 소자는 $720\;{\mu}m$ 주기의 격자가 윗면에 형성되어 있는 60 cm 길이의 금속막대와 고무덮개로 구성되어 있으며, 압력이 인가될 때에 압력이 인가된 지점에만 장주기 광섬유 격자가 형성되었고 인가된 지점에 관계없이 동일한 투과특성을 가지는 장주기 광섬유 격자들이 형성되었다. 그리고 제작된 소자의 특성측정을 통하여 무게를 측정할 수 있는 광섬유 로드(Load)센서로 사용 가능함을 보여 주었다.

Keywords

References

  1. 이상배, 최상삼 '광섬유 격자 소자 기술,' 광학과 기술, pp. 44-51, July. 1998
  2. A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, and J. E. Sipe, 'Long-period fiber gratings as band-rejection filters,' J. Lightwave Technol., vol. 14, pp. 58-65, Jan. 1996 https://doi.org/10.1109/50.476137
  3. D. Ostling and H. E. Engan, 'Broadband spatial mode conversion by chirped fiber bending,' Opt. Lett., vol. 21, pp. 192-194, 1996 https://doi.org/10.1364/OL.21.000192
  4. P. F. Wysocki, J. B. Judkins, R. P. Espinodola, M. Andrejco, and A. M. Vengsarkar, 'Broad-band erbium-doped fiber amplifier flattened beyond 40nm using long-period grating filter,' IEEE Photon. Technol. Lett., vol. 9, pp. 1343- 1345, Oct. 1997 https://doi.org/10.1109/68.623257
  5. M. Harumoto, M. Shigehara, and H. Suganuma, 'Gainflattening filter using long-period fiber gratings,' J. Lightwave Technol., vol. 20, pp. 1027-1033, June 2002 https://doi.org/10.1109/JLT.2002.1018814
  6. Ik-Bu Sohn, Jang-Gi Baek, Nam-Kwon Lee, Hyung-Woo Kwon, and Jae-Won Song, 'Gain flattened and improved EDFA using microbending long-period fibre gratings,' Electron. Lett., vol. 38, pp. 1324-1325, 2002 https://doi.org/10.1049/el:20020915
  7. V. Bhatia and A. M. Vengsarkar, 'Optical fiber long-period grating sensors,' Opt. Lett., vol. 21, no. 9, pp. 692-694, May 1996 https://doi.org/10.1364/OL.21.000692
  8. C. Y. Lin, L. A. Wang, and G. W. Chern, 'Corrugated long-period fiber gratings as strain, torsion, and bending sensors,' J. Lightwave Technol., vol. 19, pp. 1159-1168, Aug. 2001 https://doi.org/10.1109/50.939797
  9. I. K. Hwang, S. H. Yun, and B. Y. Kim, 'Long-period fiber gratings based on periodic microbends,' Opt. Lett., vol. 24, no. 18, pp. 1263-1265, 1999 https://doi.org/10.1364/OL.24.001263
  10. D. D. Davis, T. K. Gaylord, E. N. Glytsis and S. C. Mettler, 'CO2 laser-induced long-period fibre gratings: Spectral characteristics, cladding modes and polarisation independence.' Electron. Lett., vol. 34, pp. 1416-1417, 1998 https://doi.org/10.1049/el:19980978
  11. C. Y. Lin and L. A. Wang, 'Loss tunable long period fiber gratings made from etched corrugated structure,' Electron. Lett., vol. 35, pp. 1872-1873, 1999 https://doi.org/10.1049/el:19991143
  12. S. Savin, M. J. F. Digonnet, G. S. Kino, and H. J. Shaw, 'Tunable mechanically induced long-period fiber gratings,' Opt. Lett., vol. 25, no. 10, pp. 710-712, 2000 https://doi.org/10.1364/OL.25.000710
  13. 함정우, 이종훈, 이경식, '기계적으로 유도된 장주기 광섬유격자의 제작 및 특성분석,' 한국광학회지, vol. 12, no. 6, pp. 485-488, 2001
  14. J. K. Bae, S. H. Kim, J. H. Kim, J. Bae, S. B. Lee, and J. M. Jeong, 'Spectral shape tunable band-rejection filter using a long-period fiber grating with divided coil heaters,' IEEE Photon. Technol. Lett., vol. 15, pp. 407-409, Mar. 2003 https://doi.org/10.1109/LPT.2002.807955