A Holographic Optical Element for an Integrated Optical Head

Yoshiaki KOMMA; Shin–ichi KADOWAKI; Seiji NISHINO; Yoshikazu HORI; Makoto KATO

doi:10.1007/s10043-996-0251-y

Yoshiaki KOMMA, Shin–ichi KADOWAKI, Seiji NISHINO, Yoshikazu HORI, Makoto KATO

著者情報

キーワード: holographic optical element, blazed HOE, diffraction efficiency, integrated optical head

ジャーナルフリー

1996 年 3 巻 4 号 p. 251-257

DOI https://doi.org/10.1007/s10043-996-0251-y

詳細

抄録

Diffraction efficiencies of a reflection-type blazed holographic optical element (HOE) are analyzed and optimized for use in a totally integrated optical head. The HOE, consisting of four-step phase levels, was fabricated by a double-etching process. By controlling each etching depth, signal light power efficiency was maximized to 16% and the power ratio of noise components relative to signal light power was suppressed to 21%. Diffraction efficiencies were made uniform over the entire HOE in oblique positioning by controlling the respective step widths of the HOE.

責任著者(Corresponding author)

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