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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 20 — Sep. 26, 2011
  • pp: 18956–18964

SU8 3D prisms with ultra small inclined angle for low-insertion-loss fiber/waveguide interconnection

Minh-Hang Nguyen, Chia-Jung Chang, Ming-Chang Lee, and Fan-Gang Tseng  »View Author Affiliations

Optics Express, Vol. 19, Issue 20, pp. 18956-18964 (2011)

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This paper presents a simple method for fabricating SU8 three dimensional (3D) prisms with very small inclined-angles for optical-fiber/planar-waveguide interconnection with low insertion-loss by combining self-filling, molding and nano-lithography processes on plane surface. The prisms possess ultra low 3D inclined angle of 0.6° and a small surface roughness of 3.5 nm. It is demonstrated that the transmission efficiency of SOI waveguides improved about 4.6 times at the presence of SU8 prisms with a coupling loss of 11 dB per taper and radiation loss of 2.4 dB per taper.

© 2011 OSA

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.5460) Integrated optics : Polymer waveguides

ToC Category:
Integrated Optics

Original Manuscript: August 2, 2011
Revised Manuscript: August 29, 2011
Manuscript Accepted: August 29, 2011
Published: September 14, 2011

Minh-Hang Nguyen, Chia-Jung Chang, Ming-Chang Lee, and Fan-Gang Tseng, "SU8 3D prisms with ultra small inclined angle for low-insertion-loss fiber/waveguide interconnection," Opt. Express 19, 18956-18964 (2011)

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