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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 11 — May. 28, 2007
  • pp: 7058–7065

Polarization insensitive low-loss coupling technique between SOI waveguides and high mode field diameter single-mode fibers

J. V. Galán, P. Sanchis, G. Sánchez, and J. Martí  »View Author Affiliations


Optics Express, Vol. 15, Issue 11, pp. 7058-7065 (2007)
http://dx.doi.org/10.1364/OE.15.007058


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Abstract

A polarization insensitive technique for highly efficient coupling between SOI waveguides and high mode field diameter single-mode fibers is reported. The proposed coupling structure is based on an inverted taper structure coupled to a fiber-adapted waveguide. The fiber-adapted waveguide is made by using the SiO2 layer under the Si waveguiding layer of the SOI wafer thus avoiding the use of extra materials such as polymers. The proposed coupling structure is aimed for being integrated with V-groove auto-alignment techniques. Coupling losses of 3.5dB and 3.7dB to 8μm mode field diameter single-mode fibers have been estimated by means of 3D-BPM simulations for TE and TM polarizations respectively and a 1550nm input signal wavelength.

© 2007 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 5, 2007
Revised Manuscript: May 14, 2007
Manuscript Accepted: May 15, 2007
Published: May 24, 2007

Citation
J. V. Galán, P. Sanchis, G. Sánchez, and J. Martí, "Polarization insensitive low-loss coupling technique between SOI waveguides and high mode field diameter single-mode fibers," Opt. Express 15, 7058-7065 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-11-7058


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References

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