Novel high-efficiency concentrator for optical fiber communication

Fumio Nakamaru, Yoshinori Matsumoto, Akimichi Nakazono

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


A novel high-efficiency concentrator based on nonimaging optics has been designed and fabricated with micromachining technique. The shape of the concentrator utilizes compound parabolic concentrator (CPC), which can concentrate the all rays that have the angles less than a critical angle θc. The theoretical concentration efficiency was calculated by ray trace simulation considering the reflectance of the concentrator's reflective layer. The metal reflection layer of reflectance 95% was formed by Gold-Nickel mirror plating method in a glass hole. As a result, the concentration efficiency of the concentrator was measured as 89%.

Original languageEnglish
Pages (from-to)953-955
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number7
Publication statusPublished - 2002 Jul


  • CPC
  • Nonimaging optics
  • Optical transceiver
  • Plastic optical fiber
  • Ray trace simulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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