DOI QR코드

DOI QR Code

Variable Optical Attenuator based on Side Polished Fiber Technique

측면 연마 광섬유를 이용한 가변 광 감쇠기

  • 구숙영 (청주대학교 정보기술공학부 레이저광정보공학전공) ;
  • 정치섭 (청주대학교 정보기술공학부 레이저광정보공학전공)
  • Published : 2004.06.01

Abstract

The variable optical attenuator based on side polished fiber technique was experimentally demonstrated. Various combination mixtures of poly(vinylidene fluoride) and poly(methyl methacrylate) have been used as the overlay waveguide materials for the variable optical attenuator application. A controllable amount of optical power can be extracted via evanescent coupling by changing the temperature of the polymer mixture, thereby changing its refractive index. The VOA under test provides a maximum attenuation of 30 ㏈ and an insertion loss of 0.1 ㏈.

측면 연마 광섬유를 이용하여 가변 광 감쇠기를 실험적으로 구현하였다. 오버레이 물질로는 poly(vinylidene fluoride)와 poly (methyl methacrylate) 고분자 혼합체를 사용하였다. 혼합고분자의 온도를 변화시켜 오버레이의 굴절률을 조절하였고, 그로 인한 소산장 결합정도를 변화시켜 광섬유로부터 추출되는 광량을 조절하였다. 삽입손실은 0.1 ㏈ 이하였으며 30㏈이상의 감쇠를 실현하였다.

Keywords

References

  1. Fiber and Integrated Optics v.19 Device length requirement in slab/fiber evanescent coupler M.S.Dinleyici https://doi.org/10.1080/014680300244549
  2. J. Lightwave. Technol. v.7 no.1 Investigation of coupling between a fiber and an infinite slab D.Marcuse https://doi.org/10.1109/50.17744
  3. Optics Lett. v.19 no.24 Efficient method of a coupling from a single mode fiber to a thin film waveguide A.K.Das;A.K.Ganguly https://doi.org/10.1364/OL.19.002110
  4. J. Opt. Soc. Am. B v.11 no.5 Distributed coupliing between a single mode fiber and a planer waveguide K.P.Panajotov;A.T.Andreev https://doi.org/10.1364/JOSAB.11.000826
  5. Electron. Lett. v.28 no.11 In-line fiber-optic intensity modulator using electro-optic polymer G.Fawcett;W.Johnstone;I.Andonovic;D.J.Bone;T.G.Harvey;N.Carter;T.G.Ryan https://doi.org/10.1049/el:19920626
  6. J.Opt. Soc. Am. B v.15 no.2 Polymer in line fiber modulator for broadband radio-frequency optical link S.A.Hamilton;D.R.Yankelevich;A.Knoesen;R.T.Weverka;R.A.Hill;G.C.Bjorklund https://doi.org/10.1364/JOSAB.15.000740
  7. J. Appl. Phys. v.37 Low voltage optical fiber switch Shiao-Min Tseng;Chin-Lin Chen, Jpn. https://doi.org/10.1143/JJAP.37.L42
  8. Optics Lett. v.5 no.11 Single mode fiber-optic polarizer R.A.Bergh;H.C.Lefevre;H.J.Shaw https://doi.org/10.1364/OL.5.000479
  9. Optics. Comm v.180 Polarizing properties of optical coupler composed of single mode side polished fiber and multimode metal clad planer wave guide Kwang Taek, Kim;Hyung-Woo Kwon;Jae-won Song;Sangjae Lee;Woong-Gyu Jung;Shin-Won Kang https://doi.org/10.1016/S0030-4018(00)00646-5
  10. Optics Lett. v.21 no.6 Refractometer and tunable components based on side polished fibers with multimode overlay wave guides:role of the substrate Gunjan Raizada;Bishnu P. Pall https://doi.org/10.1364/OL.21.000399
  11. Optics Lett. v.10 no.9 Measurement of the proximity in polished fiber substrates and coupler M.J.F.Digonnet;J.R.Feth;L.F.Stokes;H.J.Shaw https://doi.org/10.1364/OL.10.000463
  12. Appl. Opt. v.31 no.18 Side Polished Fiber Shiao-Min Tseng;Chin-Lin Chen, X, https://doi.org/10.1364/AO.31.003438
  13. J. Lightwave Technol. v.15 no.8 High Performance Side Polished Fiber and Application as Liquid Crystal Clad Fiber Polarizer Ssu-pin Ma;Shiao-Min Tseng https://doi.org/10.1109/50.618389
  14. J. Lightwave Technol. v.LT-3 no.4 Determination of single-mode fiber coupler design parameters from loss measurements Ottokar G. Leminger;Remigius Zengerle
  15. 16th Optics and Quantum Electronics Conference 측면 연마된 광섬유편광기제작 장명희;이소영;김광택;송재원;김시홍;강신원