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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 18 — Sep. 8, 2003
  • pp: 2211–2216

Fabrication of an integrated optical filter using a large-core multimode waveguide vertically coupled to a single-mode waveguide

Min-Suk Kwon, Ki-Hong Kim, Young-Hoon Oh, and Sang-Yung Shin  »View Author Affiliations

Optics Express, Vol. 11, Issue 18, pp. 2211-2216 (2003)

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We demonstrate the feasibility of the process for fabricating a single-mode waveguide and a large-core multimode waveguide aligned vertically on the same substrate. Using this process, we propose and demonstrate a filter that drops optical signal propagating in a single-mode waveguide to a multimode waveguide in the specific wavelength interval by a long-period grating. We use perfluorocyclobutane and benzocyclobutane for the cladding and core of the single-mode waveguide, respectively. The large core of the multimode waveguide is made of Norland Optical Adhesive 61. For the grating period of 315.9 µm, the fabricated filter has the center wavelength of 1537.7 nm, at which the maximum attenuation is 17.8 dB.

© 2003 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.3120) Integrated optics : Integrated optics devices
(220.4610) Optical design and fabrication : Optical fabrication
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Research Papers

Original Manuscript: August 1, 2003
Revised Manuscript: August 29, 2003
Published: September 8, 2003

Min-Suk Kwon, Ki-Hong Kim, Young-Hoon Oh, and Sang-Yung Shin, "Fabrication of an integrated optical filter using a large-core multimode waveguide vertically coupled to a single-mode waveguide," Opt. Express 11, 2211-2216 (2003)

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