A Computational Investigation of Thermal Effects on Resin Coating Flows in an Optical Fiber Drawing System

Abstract:

In manufacturing optical fibers, there has been intense research efforts of continually increasing fiber drawing speed to improve productivity. However, higher speed fiber drawing poses new challenge in many areas of optical fiber manufacturing. In this paper, thermal effects on coating resin flow in an unpressurized coating applicator are studied numerically. Present simulation results found that higher fiber drawing speed leads to severe viscous heating in coating resin flow and significant increase of resin temperature, which in turn leads to substantial viscosity decrease. These thermal effects profoundly alter the resin flow patterns and velocity profiles in the coating die and they should be considered in controlling the final coating thickness.

• Periodical: Applied Mechanics and Materials (Volumes 110-116)
• Pages: 1080-1086
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.110-116.1080
• Online since: October 2011
• Authors: Kyoung Jin Kim, Ho Sang Kwak, Jin Su Choi
• Keywords: Computational Fluid Dynamics (CFD), Glass Fiber Coating, Optical Fiber, Thermal Effect, Viscous Heating

References

[1] M. Makinen, A test facility for enhanced fiber drawing process development, in A. L. Harmer (ed. ), Communications Cabling, IOP Press, pp.65-71, (1997).

[2] S. R. Schmid and A. F. Toussaint, Optical fiber coatings, in A. Mendez and T. Morse (ed. ), Specialty Optical Fiber Handbook, Academic Press, pp.95-122, (2007).

DOI: 10.1016/b978-012369406-5/50006-0

[3] U. C. Paek and C. M. Schroeder, High speed coating of optical fibers with UV curable materials at a rate of greater than 5 m/sec, Appl. Opt., vol. 20, no. 23, pp.4028-4043, (1981).

DOI: 10.1364/ao.20.004028

[4] A. Panoliaskos, W. L. H. Hallett, and I. Garis, Prediction of optical fiber coating thickness, Appl. Opt., vol. 24, no. 15, pp.2309-2312, (1985).

DOI: 10.1364/ao.24.002309

[5] N. Orita, P. Hasloev, and F. Pedersen, Optical fiber manufacturing method and optical fiber manufacturing apparatus, U.S. Patent Pub. No. US2009/0145168, (2009).

[6] S. Sakaguchi and T. Kimura, High-speed drawing of optical fibers with pressurized coating., J. Lightwave Technol., vol. LT-3, no. 3, pp.669-673, (1985).

DOI: 10.1109/jlt.1985.1074212

[7] A. Yang, X. M. Tao, and X. Y. Cheng, Prediction of fiber coating via liquid-phase process., J. Mater. Process. Technol., vol. 202, no. 1-3, pp.365-373, (2008).

DOI: 10.1016/j.jmatprotec.2007.09.077

[8] K. Kim, H. S. Kwak, S. H. Park, and Y. S. Lee, Theoretical prediction on double-layer coating in wet-in-wet optical fiber coating process, J. Coat. Technol. Res., DOI 10. 1007/s11998-010-9272-3, (2010).

DOI: 10.1007/s11998-010-9272-3

[9] K. Ratten and Y. Jaluria, Simulation of the flow in a coating applicator for optical fiber manufacture, Comput. Mech., vol. 31, no. 5, pp.428-436, (2003).

DOI: 10.1007/s00466-003-0445-0

[10] S. -Y. Yoo and Y. Jaluria, Isothermal flow in an optical fiber coating applicator and die system, J. Lightwave Technol., vol. 24, no. 1, pp.449-463, (2006).

DOI: 10.1109/jlt.2005.860142

[11] S. -Y. Yoo and Y. Jaluria, Fluid flow and heat transfer in an optical fiber coating process, Int. J. Heat Mass Transfer, vol. 50, no. 5-6, pp.1176-1185, (2007).

DOI: 10.1016/j.ijheatmasstransfer.2006.02.006

[12] C. J. Aloisio, T. A. Lenahan, and C. R. Taylor, Coating optical fibers with dual dies separated by a pressurized chamber, Fiber Int. Opt., vol. 5, no. 1, pp.81-97, (1984).

DOI: 10.1080/01468038408241752

[13] P. G. Simpkins and V. J. Kuck, On air entrainment in coatings, J. Colloid Interface Sci., vol. 263, no. 2, pp.562-571, (2003).

DOI: 10.1016/s0021-9797(03)00347-3

[14] M. Fujimaki, T. Hamada, and K. Harada, Optical fiber drawing die and drawing method therefor, U.S. Patent Pub. No. US2006/ 0016393, (2006).

[15] K. Chida, S. Sakaguchi, M. Wagatsuma, and T. Kimura, High-speed coating of optical fibres with thermally curable silicon resin using a pressurized die., Electron. Lett., vol. 18, no. 16, pp.713-715, (1983).

DOI: 10.1049/el:19820485