OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 2 — Jan. 15, 2014
  • pp: 335–338

Ultra-low-loss CMOS-compatible waveguide crossing arrays based on multimode Bloch waves and imaginary coupling

Yangyang Liu, Jeffrey M. Shainline, Xiaoge Zeng, and Miloš A. Popović  »View Author Affiliations


Optics Letters, Vol. 39, Issue 2, pp. 335-338 (2014)
http://dx.doi.org/10.1364/OL.39.000335


View Full Text Article

Enhanced HTML    Acrobat PDF (1662 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We experimentally demonstrate broadband waveguide crossing arrays showing ultralow loss of 0.04dB/crossing (0.9%) on average and converging to 0.033dB/crossing (0.075%) matching theory and cross-talk suppression over 35 dB in a CMOS-compatible geometry. The principle of operation is the tailored excitation of a low-loss spatial Bloch wave formed by matching the periodicity of the crossing array to the difference in propagation constants of the first- and third-order TE-like modes of a multimode silicon waveguide. Radiative scattering at the crossing points acts like a periodic imaginary-permittivity perturbation that couples two supermodes, which results in imaginary (radiative) propagation-constant splitting and gives rise to a low-loss, unidirectional breathing Bloch wave. This type of crossing array provides a robust implementation of a key component enabling dense photonic integration.

© 2014 Optical Society of America

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

ToC Category:
Integrated Optics

History
Original Manuscript: November 14, 2013
Revised Manuscript: December 5, 2013
Manuscript Accepted: December 5, 2013
Published: January 10, 2014

Citation
Yangyang Liu, Jeffrey M. Shainline, Xiaoge Zeng, and Miloš A. Popović, "Ultra-low-loss CMOS-compatible waveguide crossing arrays based on multimode Bloch waves and imaginary coupling," Opt. Lett. 39, 335-338 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-2-335


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. C. Batten, A. Joshi, J. Orcutt, A. Khilo, B. Moss, C. Holzwarth, M. Popović, H. Li, H. Smith, J. Hoyt, F. Kärtner, R. Ram, V. Stojanović, and K. Asanović, IEEE Micro. 29, 8 (2009).
  2. P. J. Bock, P. Cheben, J. H. Schmid, J. Lapointe, A. Delâge, D.-X. Xu, S. Janz, A. Densmore, and T. J. Hall, Opt. Express 18, 16146 (2010). [CrossRef]
  3. T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. 43, 646 (2004). [CrossRef]
  4. M. R. Watts, “Polarization independent microphotonic circuits,” Ph.D. thesis (Massachusetts Institute of Technology, 2005).
  5. C. Manolatou, S. G. Johnson, S. Fan, P. R. Villeneuve, H. A. Haus, and J. D. Joannopoulos, J. Lightwave Technol. 17, 1682 (1999). [CrossRef]
  6. Y. Yu, M. Heuck, S. Ek, N. Kuznetsova, K. Yvind, and J. Mørk, Appl. Phys. Lett. 101, 251113 (2012). [CrossRef]
  7. W. Bogaerts, P. Dumon, D. V. Thourhout, D. Taillaert, P. Jaenen, J. Wouters, S. Beckx, V. Wiaux, and R. Baets, IEEE J. Sel. Top. Quantum Electron. 12, 1394 (2006). [CrossRef]
  8. A. Jones, C. DeRose, A. Lentine, D. Trotter, A. Starbuck, and R. Norwood, Opt. Express 21, 12002 (2013). [CrossRef]
  9. H. R. Stuart, Opt. Lett. 28, 2141 (2003). [CrossRef]
  10. H. Liu, H. Tam, P. K. A. Wai, and E. Pun, Opt. Commun. 241, 99 (2004). [CrossRef]
  11. H. Chen and A. W. Poon, IEEE Photon. Technol. Lett. 18, 2260 (2006). [CrossRef]
  12. M. A. Popović, E. P. Ippen, and F. X. Kärtner, in Proceedings of the Annual Meeting of IEEE Lasers and Electro-Optics Society (LEOS), October2007, paper MF5.
  13. M. A. Popović, “Low-loss Bloch wave guiding in open structures and highly compact efficient waveguide-crossing arrays,” U.S. patent7,903,909 (March8, 2011).
  14. Y. Zhang, S. Yang, A. E.-J. Lim, G. Lo, C. Galland, T. Baehr-Jones, and M. Hochberg, IEEE Photon. Technol. Lett. 25, 422 (2013). [CrossRef]
  15. G. Goubau and F. Schwering, IEEE Trans. Antennas Propag. 9, 248 (1961). [CrossRef]
  16. Y. Liu, J. Shainline, X. Zeng, and M. A. Popović, in Integrated Photonics Research, July2013, paper IM1A.4.
  17. Y. Zhang, A. Hosseini, X. Xu, D. Kwong, and R. Chen, Opt. Lett. 38, 3608 (2013). [CrossRef]
  18. M. S. Dahlem, C. W. Holzwarth, H. I. Smith, E. P. Ippen, and M. A. Popović, in Proceedings of Integrated Photonics Research, July2010, paper IMC4.
  19. C. Gentry and M. Popović, in The Conference on Lasers and Electro-Optics: 2013, OSA Technical Digest, June2013, paper CM3F.1.
  20. M. A. Popović, C. Manolatou, and M. R. Watts, Opt. Express 14, 1208 (2006). [CrossRef]
  21. ePIXfab, http://www.epixfab.eu .
  22. Y. Liu, X. Zeng, J. Shainline, and M. A. Popović, in Integrated Photonics Research, July2013, paper IM2B.6.
  23. J. M. Shainline, J. S. Orcutt, M. T. Wade, K. Nammari, O. Tehar-Zahav, Z. Sternberg, R. Meade, R. J. Ram, V. Stojanović, and M. Popović, Opt. Lett. 38, 2729 (2013). [CrossRef]

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.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited