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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea


  • Vol. 10, Iss. 4 — Dec. 25, 2006
  • pp: 169–173

Optimization for Arrayed Waveguide Grating having MMI Coupler for Flattened Transfer Function

Jae-Hoon Jung  »View Author Affiliations

Journal of the Optical Society of Korea, Vol. 10, Issue 4, pp. 169-173 (2006)

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This paper describes an efficient optimal design method for an arrayed waveguide grating (AWG) having MMI coupler with flattened transfer function. The objective function is the norm of the difference between calculated and target spectra. To analyze the AWG transfer function, the Fresnel-Kirchhof diffraction formula was employed and the design variable was optical path difference of each array waveguide. The (1+1) Evolution Strategy was applied to an eight-channel coarse wavelength division multiplexing (CWDM) AWG as the optimization tool. For obtaining a broadened spectrum, we use a MMI coupler and the variation in optical path difference at each array waveguide changes the shape of the transfer function to obtain the optimal spectrum shape.

© 2006 Optical Society of Korea

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(070.2580) Fourier optics and signal processing : Paraxial wave optics

Original Manuscript: November 14, 2006
Revised Manuscript: November 22, 2006
Published: December 25, 2006

Jae-Hoon Jung, "Optimization for Arrayed Waveguide Grating having MMI Coupler for Flattened Transfer Function," J. Opt. Soc. Korea 10, 169-173 (2006)

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