OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 28, Iss. 22 — Nov. 15, 2003
  • pp: 2141–2143

Waveguide lenses with multimode interference for low-loss slab propagation

Howard R. Stuart  »View Author Affiliations


Optics Letters, Vol. 28, Issue 22, pp. 2141-2143 (2003)
http://dx.doi.org/10.1364/OL.28.002141


View Full Text Article

Acrobat PDF (583 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

It is shown that a nearly ideal two-dimensional focusing Gaussian beam can be synthesized by use of a linear combination of the two lowest-order even modes of an optical waveguide. This property can be used to couple laterally guided modes across slab waveguide regions with low loss. The technique is illustrated by use of a conventional multimode interference (MMI) geometry, in which the MMI coupler transforms the fundamental mode of an initial waveguide into a focusing Gaussian beam, which is then fed to a slab region. Two-dimensional beam propagation simulations show that the beam does not initially diverge in the slab region, but rather comes to a focus. A second MMI coupler then transforms the diverging beam back to the initial mode. A structure is designed that can couple the fundamental mode of a 9-μm -wide waveguide across an 88-μm -long slab region with only a 0.036-dB loss. This technique can be applied to improve the performance of small-angle waveguide crossings and integrated turning mirrors.

© 2003 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(230.7370) Optical devices : Waveguides

Citation
Howard R. Stuart, "Waveguide lenses with multimode interference for low-loss slab propagation," Opt. Lett. 28, 2141-2143 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-22-2141


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. L. B. Soldano and E. C. M. Pennings, J. Lightwave Technol. 13, 615 (1995).
  2. P. A. Besse, M. Bachmann, H. Melchior, L. B. Soldano, and M. K. Smit, J. Lightwave Technol. 12, 1004 (1994).
  3. D. S. Levy, K. H. Park, R. Scarmozzino, R. M. Osgood, Jr., C. Dries, P. Studenkov, and S. Forrest, IEEE Photon. Technol. 11, 1009 (1999).
  4. J. Leuthold and C. H. Joyner, J. Lightwave Technol. 19, 700 (2001).
  5. A. Yariv, Quantum Electronics, 3rd ed. (Wiley, New York, 1989).
  6. BPM simulations were performed using the formulation described in C. R. Doerr, IEEE Photon. Technol. Lett. 13, 130 (2001).
  7. H. G. Bukkems, C. G. P. Herben, M. K. Smit, F. H. Groen, and I. Moerman, IEEE Photon. Technol. Lett. 11, 1420 (1999).
  8. R. Orobtchouk, S. Laval, D. Pascal, and A. Koster, J. Lightwave Technol. 15, 815 (1997).
  9. O. Bryngdahl, J. Opt. Soc. Am. 63, 416 (1973).
  10. R. Ulrich and T. Kamiya, J. Opt. Soc. Am. 68, 583 (1978).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited