Fabrication and testing of a blazed holographic optical element

Yuzuru Takashima, Toshitake Kitagawa, Akira Amano, Yoshikazu Hata, Yutaka Yamagata, Toshiro Higuchi

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

A blazed holographic optical element (HOE) has developed with injection molding technique. It is able to function as a beam splitter and aberration generator for focusing error detection of optical pick up head for optical storage system. The die was made by 4 axis controlled ultra precision cutting machine using single crystalline diamond cutting tool We carried out fabrication error estimation caused by cutting and injection, and derived adequate tolerance budget. The efficiency of HOE defined y the product of 0th and 1st order diffraction efficiency was measured by knife-edge method. We attained high efficiency of 15.5% which is close to theoretical limit. The efficiency is about 1.5 times as that of conventional non- blazed HOE.

Original languageEnglish (US)
Pages (from-to)188-196
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3135
DOIs
StatePublished - Dec 1 1997
Externally publishedYes
EventPrecision Plastic Optics for Optical Storage, Displays, Imaging, and Communications - San Diego, CA, United States
Duration: Jul 30 1997Jul 30 1997

Keywords

  • Blazed
  • Diffraction
  • Diffraction efficiency
  • Holographic optical element
  • Injection molding
  • Knife-edge test
  • Single point diamond crystalline cutting

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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