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Applied Optics

Applied Optics


  • Vol. 28, Iss. 11 — Jun. 1, 1989
  • pp: 2039–2042

Leaky wave analysis of an optical grating coupler with a large grating period

Masayuki Matsumoto, Manabu Ohtsuka, and Masanori Matsuhara  »View Author Affiliations

Applied Optics, Vol. 28, Issue 11, pp. 2039-2042 (1989)

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Results of a rigorous leaky wave analysis of an optical grating coupler having a large grating period are presented. The coupler is designed so that most of the guided-wave power is transferred to a substrate beam progressing in the forward direction with the first-order air beam made evanescent. It is found that a large power partition into the substrate beam can readily be obtained in spite of the presence of a number of higher-order propagating space harmonics. Validity of the approximate perturbation method for the case of the long grating period is also examined.

© 1989 Optical Society of America

Original Manuscript: April 21, 1988
Published: June 1, 1989

Masayuki Matsumoto, Manabu Ohtsuka, and Masanori Matsuhara, "Leaky wave analysis of an optical grating coupler with a large grating period," Appl. Opt. 28, 2039-2042 (1989)

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