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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 21, Iss. 10 — Oct. 1, 2003
  • pp: 2340–

Spot-Size Conversion of Guided Optical Wave With Gaussian Approximation

Toshikazu Hashimoto, Takashi Saida, Ryoichi Kasahara, and Ikuo Ogawa

Journal of Lightwave Technology, Vol. 21, Issue 10, pp. 2340- (2003)

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We propose an approach to optical wave field spot-size conversion that uses a waveguide structure. An optical wave field is decomposed with a Hermite-Gaussian basis, and we describe its motion with partial differential equations for the field radius and center parameters derived from the propagation of the lower order components. We use the equations to design a spot-size conversion waveguide structure for expanding and reducing a field spot as an example in a quasi-single-mode optical waveguide.

© 2003 IEEE

Toshikazu Hashimoto, Takashi Saida, Ryoichi Kasahara, and Ikuo Ogawa, "Spot-Size Conversion of Guided Optical Wave With Gaussian Approximation," J. Lightwave Technol. 21, 2340- (2003)

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