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

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

Thermo-Optically Tunable Filter Using Evanescent Field Coupling Between Side-Polished Polarization Maintaining Fiber and Polymer Planar Waveguide

측면 연마된 편광유지 광섬유와 폴리머 평면도파로 사이의 소산장 결합을 이용한 열 광학 가변 필터

  • 윤대성 (호남대학교 광전자공학과) ;
  • 김광택 (호남대학교 광전자공학과)
  • Published : 2004.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

We have demonstrated a tunable Inter based on an asymmetric directional coupler made of a side-polished polarization maintaining fiber coupled with a polymer planar waveguide. The thermo-optic effects of the polymer planar waveguide induced by a micro-strip heater placed on the top layer of the device leads to shift of resonance wavelength of the coupler. The fabricated device exhibited wide tunable range exceeding 230 nm with 720 ㎽ of applied electrical power.

측면 연마된 편광 유지 광섬유와 폴리머 평면도파로가 결합된 비대칭 방향성 결합기를 이용하여 가변 광필터를 구현하였다. 소자의 최상부층 위에 형성된 마이크로 스트립 히터에 의하여 유도된 폴리머 평면도파로의 열광학 효과는 결합기의 공진파장을 이동시킨다. 제작된 소자는 720 ㎽의 인가 전력으로 230 ㎚ 이상의 넓은 가변 범위를 보였다.

Keywords

References

  1. S. A. Hanilton, D. R. Yankelevich, A. Knoesen, R. T. Weverka, R. A. Hill, and G. C. Bjorkund,' Polymer in line fiber modulators for broadband radio-frequency optical links,' J. Opt. Soc. Am. B, vol. 15, no. 2, pp. 741-751, 1998
  2. A. Andreev, Bl. Pantchev, P. Danesh, B. Zafirova, and E. Karakoleva, 'a-Si:H film on side-polished fiber as optical polarizer and narrow-band filter,' Thin Solid Films, vol. 330, pp. 150-156, 1998 https://doi.org/10.1016/S0040-6090(98)00761-5
  3. S. Creaney, W. Johnstone, and K. McCallion, 'Continuous-fiber modulator with high-band-width coplanar strip electrodes,' IEEE Photonics Tech. Lett., vol. 8, no. 3, pp. 355-357, 1996 https://doi.org/10.1109/68.481115
  4. S. M. Tseng and C. L. Chen,' Low voltage optical fiber switch, 'Jpn, J. Appl. Phys., vol. 37, No. 1A/B, pp. L42-L45, 1998 https://doi.org/10.1143/JJAP.37.L42
  5. R. B. Charters, A. P. Kuczynski, S. E. Staines, R. P. Tanam and G. J. Ashwell, 'In-line fibre optic channel dropping filter using Langmuir_Blodgett films,' IEE Electron. Lett., vol. 30, no. 7, pp. 594-595, 1994 https://doi.org/10.1049/el:19940407
  6. L. S. Mauchline, W. I. Madden and W. Johnston, 'Low voltage tunavle in-line channel dropping filter wusing liquid crystal waveguide overlays,' IEE Electron. Lett., vol. 30, no. 11, pp. 985-986, 1997 https://doi.org/10.1049/el:19970631
  7. K. T. Kim, J. W. Song, 'Investigation of thermo-optically tunable fiber-to-planar waveguide coupler,' Optics Comm., vol. 205, pp. 113-122, 2002 https://doi.org/10.1016/S0030-4018(02)01319-6
  8. S. S. Lee, Y. S. Jin, and T. K. Yoo, ' Polymeric tunable optical attenuator with an optical monitoring tap for WDM transmission network,' IEEE Photon. Tech. Lett., vol. 11, pp. 590-592, May, 1999 https://doi.org/10.1109/68.759408
  9. S. Toyoda, N. Ooba, T. Kitoh, T. and Kurihara, T. maruno, ' Thermo-optic device using polymer waveguide,' IEICE , vol. E85C, no. 6, pp. 1264-1269, 2002
  10. K. T. Kim, D. S. Yoon, and G. I. Kweon ,'Optical properties of side-polished polarization maintaining fiber coupled with a high index planar waveguide,' Opt. Comm. vol. 230, no 1-3, pp. 137-144, 2004 https://doi.org/10.1016/j.optcom.2003.11.056
  11. K. T. Kim, D. S. Yoon, C. H. Kim, and J. O. Mah, 'Optical properties of single-mode side-polished fiber covered with mutilayer planar waveguide including metal films,' Jpn. J. App. Phys., vol. 42, no. 11, pp. 6910-6915, 2003 https://doi.org/10.1143/JJAP.42.6910
  12. S. M. Tseng and C. L. Chen, 'Side-polished fiber,' Appl. Optics, vol. 31, no. 18, pp. 3438-3447, 1992 https://doi.org/10.1364/AO.31.003438
  13. W. G. Jung, S. W. Kim, K. T. Kim, E. S. Kim, and S. W. Kang, ' High-sensitivity temperature sensor using a side-polished sungle-mode fiber covered with the polymer planar waveguide,' IEEE Photonics Tech. Lett., vol. 13, no. 11, pp.1209-1211, 2001 https://doi.org/10.1109/68.959366