Presentation 2018-02-16
Low reflectance lens with nanostructure
Sho Yakabe, Takuro Watanabe, Takayuki Shimazu, Ryohei Hokari, Kazuma Kurihara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Plastic lenses are utilized for optical communication devices such as AOC (Active Optical Cable), optical transceivers and optical connectors in order to improve optical coupling efficiency. On the other hand, in order to reduce the loss of the optical communication device, it is indispensable to reduce the Fresnel loss due to the refractive index of the resin, and as one solution, an Anti-Reflection (AR) coating is utilized. Although it is possible to greatly lower the reflectance at the end face of the lens by this AR coat, the cost of the device is increased. From such a problem, in this work, we reduced the reflectance in the near infrared wavelength band without AR coating by transferring the nanoscale concavo-convex structure to the lens surface by injection molding.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Nanostructure / Low reflectance lens / Injection Molding / Thermoplastic Resin
Paper # OFT2017-81,OPE2017-189
Date of Issue 2018-02-08 (OFT, OPE)

Conference Information
Committee OPE / OCS / OFT
Conference Date 2018/2/15(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Prefectural Museum
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kazutoshi Kato(Kyushu Univ.) / Itsuro Morita(KDDI Research) / Masayuki Shigematsu(Sumitomo Electric Industries)
Vice Chair Kouki Sato(Furukawa Electric Industries)
Secretary Kouki Sato(NTT) / (Kanagawa Inst. of Tech.) / (Sumitomo Electric Industries)
Assistant Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT) / / Hiroshi Watanabe(NTT) / Masateru Tadakuma(Furukawa Electric Industries)

Paper Information
Registration To Technical Committee on OptoElectronics / Technical Committee on Optical Communication Systems / Technical Committee on Optical Fiber Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Low reflectance lens with nanostructure
Sub Title (in English) *
Keyword(1) Nanostructure
Keyword(2) Low reflectance lens
Keyword(3) Injection Molding
Keyword(4) Thermoplastic Resin
1st Author's Name Sho Yakabe
1st Author's Affiliation SUMITOMO ELECTRIC INDUSTRIES,LTD.(SEI)
2nd Author's Name Takuro Watanabe
2nd Author's Affiliation SUMITOMO ELECTRIC INDUSTRIES,LTD.(SEI)
3rd Author's Name Takayuki Shimazu
3rd Author's Affiliation SUMITOMO ELECTRIC INDUSTRIES,LTD.(SEI)
4th Author's Name Ryohei Hokari
4th Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
5th Author's Name Kazuma Kurihara
5th Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
Date 2018-02-16
Paper # OFT2017-81,OPE2017-189
Volume (vol) vol.117
Number (no) OFT-434,OPE-435
Page pp.pp.67-70(OFT), pp.105-108(OPE),
#Pages 4
Date of Issue 2018-02-08 (OFT, OPE)