Fabrication of a Graded-index Polymer Optical Fiber Preform by Using a Centrifugal Force

Sang Hyuk Im; Duck Jong Suh; O Ok Park; Hansol Cho; Jin Sung Choi; Jae Keun Park; Jin Taek Hwang

Korean Journal of Chemical Engineering, Vol.19, No.3, 505-509, May, 2002

DOI10.1007/BF02697164 Export Citation

Fabrication of a Graded-index Polymer Optical Fiber Preform by Using a Centrifugal Force

Sang Hyuk Im, Duck Jong Suh, O Ok Park^†, Hansol Cho¹, Jin Sung Choi¹, Jae Keun Park¹, and Jin Taek Hwang¹

Center for Advanced Functional Polymers, Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1, Kusong-Dong, Yusong-Gu,Daejeon 305-701, Korea
¹E-Polymer Laboratory, Samsung Advanced Institute of Technology, 103-6, Moonji-Dong, Yusong-Gu, Daejeon 305-380, Korea

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We have investigated a fabricating method for a graded index polymer optical fiber preform using a centrifugal force. When two monomers with different densities and refractive indices are polymerized under a centrifugal force, a concentration gradient is generated due to their density difference. Therefore, a graded refractive index can be obtained according to the concentration gradient. When a monomer is polymerized under a centrifugal force, a preform with a hollow is obtained because of volume shrinkage. To compensate for this practically, additional monomer should be filled into the hollow. Monomer should be fed to obtain a continuous gradient of refractive index at the interface before the first polymerized product is perfectly glassified. Two different types of feeding additional monomer were experimented with: monomer-monomer pair (case I) and monomer-polymer pair (case II). The graded index profile with a proper Δn (about 0.01) was successfully obtained in either case.

Keywords:Graded Index;Polymer Optical Fiber Preform;Centrifugal Force;Volume Shrinkage

[References]

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van Duijnhoven FGH, Bastiaansen CWM, Appl. Opt., 38, 1008 (1999)
Keiser G, "Optical Fiber Communications," McGraw-Hill, 2nd Edt., Ch. 2
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Koike Y, Kanemitsu A, Shioda A, Appl. Opt., 33, 3394 (1994)
Koike Y, Takezawa Y, Ohtsuka Y, Appl. Opt., 27, 486 (1998)
Lee GS, Kim SD, Korean J. Chem. Eng., 8(1), 6 (1991)
Park CW, Lee B, Choi WY, Walker JK, Ind. Eng. Chem., 39, 79 (2000)
Tagaya A, Teramoto S, Nihei E, Appl. Opt., 36, 572 (1997)

[Referenced By]

[Related Articles]

[1] Emslie C, J. Mater. Sci., 23, 2281 (1988)

[2] Hecht E, "Optics," Addison Wellesley Publishing Company, Inc., Ch. 5 (1990)

[3] van Duijnhoven FGH, Bastiaansen CWM, Appl. Opt., 38, 1008 (1999)

[4] Keiser G, "Optical Fiber Communications," McGraw-Hill, 2nd Edt., Ch. 2

[5] Ishigure T, Horibe A, Nihei E, Koike Y, J. Lightwave Technol., 13, 1686 (1995)

[6] Koike Y, Nkhei E, SPIE, 1592, 62 (1991)

[7] Koike Y, Kanemitsu A, Shioda A, Appl. Opt., 33, 3394 (1994)

[8] Koike Y, Takezawa Y, Ohtsuka Y, Appl. Opt., 27, 486 (1998)

[9] Lee GS, Kim SD, Korean J. Chem. Eng., 8(1), 6 (1991)

[10] Park CW, Lee B, Choi WY, Walker JK, Ind. Eng. Chem., 39, 79 (2000)

[11] Tagaya A, Teramoto S, Nihei E, Appl. Opt., 36, 572 (1997)