Abstract

We investigate numerically the optical field in the region immediately behind the input facets of dielectric step-index single-mode slab and fiber waveguides. Visualization of the intensity distributions gives insight into the formation of the fundamental mode and of radiation modes. For a more quantitative characterization we determine the amount of optical power and mode purity of the field in core vicinity as a function of propagation distance. The investigation assists in designing and optimizing waveguides being employed as modal filters, e.g. for astronomical interferometers.

© 2007 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef]
  11. C. Zhou and L. Li, "Formulation of the Fourier modal method for symmetric crossed gratings in symmetric mountings," J. Opt. A: Pure Appl. Opt. 6, 43-50 (2004).
    [CrossRef]

2006

J. C. Flanagan, D. J. Richardson, M. J. Foster, and I. Bakalski, "Microstructured fibers for broadband wavefront filtering in the mid-IR," Opt. Express 14, 11773-11786 (2006).
[CrossRef]

P. Cheben, D. -X. Xu, S. Janz, and A. Densmore, "Subwavelength waveguide grating for mode conversion and light coupling in integrated optics," Opt. Express 14, 4695-4702 (2006).
[CrossRef]

2004

C. Zhou and L. Li, "Formulation of the Fourier modal method for symmetric crossed gratings in symmetric mountings," J. Opt. A: Pure Appl. Opt. 6, 43-50 (2004).
[CrossRef]

2002

2001

2000

C. V. M. Fridlund, "DARWIN - The Infrared Space Interferometry Mission," ESA Bulletin 103, 20-25 (2000).

1997

ESA Bulletin

C. V. M. Fridlund, "DARWIN - The Infrared Space Interferometry Mission," ESA Bulletin 103, 20-25 (2000).

J. Opt. A: Pure Appl. Opt.

C. Zhou and L. Li, "Formulation of the Fourier modal method for symmetric crossed gratings in symmetric mountings," J. Opt. A: Pure Appl. Opt. 6, 43-50 (2004).
[CrossRef]

J. Opt. Soc. Am. A

Opt. Express

P. Cheben, D. -X. Xu, S. Janz, and A. Densmore, "Subwavelength waveguide grating for mode conversion and light coupling in integrated optics," Opt. Express 14, 4695-4702 (2006).
[CrossRef]

J. C. Flanagan, D. J. Richardson, M. J. Foster, and I. Bakalski, "Microstructured fibers for broadband wavefront filtering in the mid-IR," Opt. Express 14, 11773-11786 (2006).
[CrossRef]

Other

O. Wallner, W. R. Leeb, and R. Flatscher, "Design of spatial and modal filters for nulling interferometry," in Interferometry for Optical Astronomy II, Wesley A. Traub, ed., Proc. SPIE 4838, 668-679 (2003).

A. W. Snyder and J. D. Love, Optical waveguide theory (Chapman & Hall, 1983), p. 259 ff.

G. Grau and W. Freude, Optische Nachrichtentechnik (Springer, 1991), pp. 51.

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