Commercial scale fabrication method for fabricating a gradient refractive-index rod: overcoming volume shrinkage and chemical restrictions

We report a fabrication method for a gradient refractive-index polymeric object from a binary comonomer system, regardless of the monomers' reactivity ratio and the molar volume criteria of gradient refractive-index development. To fabricate a large gradient refractive-index rod consisting of a methyl methacrylate and 2,2,3,3-tetrafluoropropyl methacrylate comonomer pair that has not been used for fabrication of a copolymer gradient refractive-index rod by previous conventional methods because of chemical restrictions in molar volume and reactivity ratio difference, we use the so-called successive UV polymerization in a controlled radial volume in conjunction with an automatic refill reactor. Simultaneously and automatically, the volume shrinkage problem, an inevitable shortcoming for the fabrication of a large polymeric object in a commercial production scale, is overcome and exploited. The theoretical features of the refractive-index profile generation of this method are also compared with those of conventional methods for which the chemical restrictions of monomers are crucial for the shape of a refractive-index profile. (c) 2006 Optical Society of America.
Publisher
OPTICAL SOC AMER
Issue Date
2006-10
Language
ENG
Keywords

POLYMER OPTICAL-FIBER; INTERFACIAL GEL POLYMERIZATION; FOCUSING PLASTIC ROD; CENTRIFUGAL FORCE; METHACRYLATE; TRANSMISSION; PREFORM; FIELD; LENS

Citation

APPLIED OPTICS, v.45, no.28, pp.7239 - 7247

ISSN
0003-6935
DOI
10.1364/AO.45.007239
URI
http://hdl.handle.net/10203/4342
Appears in Collection
CBE-Journal Papers(저널논문)
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