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Fabrication of segmented cladding fiber by bicomponent spinning
Author(s) -
Duan Julan,
Teng Cuiqing,
Han Keqing,
Yu Muhuo,
Wu Wenxuan,
Zhang Qijin,
Chiang Kin Seng
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21375
Subject(s) - materials science , cladding (metalworking) , spinning , all silica fiber , multi mode optical fiber , fabrication , plastic clad silica fiber , optical fiber , fiber , refractive index , optics , composite material , polycarbonate , graded index fiber , optoelectronics , fiber optic sensor , medicine , alternative medicine , pathology , physics
Fabrication of segmented cladding fiber (SCF) by bicomponent spinning was proposed in this article. In the new designed spin pack, we considered the high refractive component of cladding and core as a whole to control the cross section of the fiber. Quenching system in current bicomponent melting spinning system was modified according to the requirement of quenching fiber with a large size. The polymer SCF with required cross section was successfully fabricated using polycarbonate and polymethyl methacrylate. The transmission loss in the wavelength of 500–1000 nm was tested by the cut‐back method. The result showed that the transmission loss of the obtained fiber was comparatively high, being up to 30 dB/m. The output light pattern of the obtained fiber of 60 cm was collected by using a charge‐coupled device camera with laser light of 532 nm as the input. The output light pattern for the far field was a uniform circle and that for the near field was similar to the cross‐section designed. The results showed that the obtained fiber was still a multimode optical fiber because of the comparatively large refractive index difference between the two materials used. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers