OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 34 — Dec. 1, 2012
  • pp: 8257–8261

Ultracompact polarization splitter–rotator based on an asymmetric directional coupler

Yonghao Fei, Libin Zhang, Tongtong Cao, Yanmei Cao, and Shaowu Chen  »View Author Affiliations

Applied Optics, Vol. 51, Issue 34, pp. 8257-8261 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (742 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



An ultracompact polarization splitter–rotator based on an asymmetric directional coupler has been designed and analyzed. The device consists of one channel waveguide and one vertical slot waveguide, which couple to each other to form the asymmetric directional coupler. The coupling length is only 17.4 μm, and the polarization extinction ratio, with its largest value of 18 dB, is more than 15 dB in the operating wavelength range from 1515 to 1560 nm. The TM-to-TE conversion efficiency can reach up to 95% (0.02 dB) at 1550 nm wavelength.

© 2012 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(230.0230) Optical devices : Optical devices

ToC Category:
Optical Devices

Original Manuscript: September 27, 2012
Revised Manuscript: November 13, 2012
Manuscript Accepted: November 16, 2012
Published: November 30, 2012

Yonghao Fei, Libin Zhang, Tongtong Cao, Yanmei Cao, and Shaowu Chen, "Ultracompact polarization splitter–rotator based on an asymmetric directional coupler," Appl. Opt. 51, 8257-8261 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C. Manolatou, S. G. Johnson, S. Fan, P. R. Villeneuve, H. A. Haus, and J. D. Joannopoulos, “High density integrated optics,” J. Lightwave Technol. 17, 1682–1692 (1999). [CrossRef]
  2. T. Barwicz, M. R. Watts, M. A. Popović, P. T. Rakich, L. Socci, F. X. Kärtner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics 1, 57–60 (2007). [CrossRef]
  3. H. Fukuda, K. Yamada, T. Tsuchizawa, T. Watanabe, H. Shinojima, and S. Itabashi, “Silicon photonic circuit with polarization diversity,” Opt. Express 16, 4872–4880 (2008). [CrossRef]
  4. W. Bogaerts, D. Taillaert, P. Dumon, D. Van Thourhout, R. Baets, and E. Pluk, “A tunable polarization diversity silicon photonics filter,” Opt. Express 19, 13063–13072 (2011). [CrossRef]
  5. I. Kiyat, A. Aydinli, and N. Dagli, “A compact silicon-on-insulator polarization splitter,” IEEE Photonics Technol. Lett. 17, 100–102 (2005). [CrossRef]
  6. Y. Yue, L. Zhang, J.-Y. Yang, R. G. Beausoleil, and A. E. Willner, “Silicon-on-insulator polarization splitter using two horizontally slotted waveguides,” Opt. Lett. 35, 1364–1366 (2010). [CrossRef]
  7. S. Lin, J. Hu, and K. B. Crozier, “Ultracompact, broadband slot waveguide polarization splitter,” Appl. Phys. Lett. 98, 151101–151103 (2011). [CrossRef]
  8. D. Dai, Z. Wang, and J. E. Bowers, “Ultrashort broadband polarization beam splitter based on an asymmetrical directional coupler,” Opt. Lett. 36, 2590–2592 (2011). [CrossRef]
  9. Y.-F. Ma and D.-W. Huang, “A compact slot waveguide directional coupler-based silicon-on-insulator polarization splitter,” in Proceedings of the 2008 5th IEEE International Conference on Group IV Photonics (IEEE, 2008), pp. 297–298.
  10. M. R. Watts, H. A. Haus, and E. P. Ippen, “Integrated mode-evolution-based polarization splitter,” Opt. Lett. 30, 967–969 (2005). [CrossRef]
  11. L. Liu, Y. Ding, K. Yvind, and J. M. Hvam, “Efficient and compact TE–TM polarization converter built on silicon-on-insulator platform with a simple fabrication process,” Opt. Lett. 36, 1059–1061 (2011). [CrossRef]
  12. J. Fan, C. Huang, and L. Zhu, “A compact, broadband slot waveguide polarization rotator,” AIP Adv. 1, 042136 (2011). [CrossRef]
  13. J. Yamauchi, M. Yamanoue, and H. Nakano, “A short polarization converter using a triangular waveguide,” J. Lightwave Technol. 26, 1708–1714 (2008). [CrossRef]
  14. B. Wohlfeil, L. Zimmermann, and K. Petermann, “Asymmetric codirectional coupler between regular nanowaveguide and slot-waveguide for polarization conversion,” in Integrated Photonics Research, Silicon and Nanophotonics, OSA Technical Digest (online) (Optical Society of America, 2012), paper ITu2B.5.
  15. A. V. Velasco, M. L. Calvo, P. Cheben, A. Ortega-Moñux, J. H. Schmid, C. A. Ramos, Í. M. Fernandez, J. Lapointe, M. Vachon, S. Janz, and D.-X. Xu, “Ultracompact polarization converter with a dual subwavelength trench built in a silicon-on-insulator waveguide,” Opt. Lett. 37, 365–367 (2012). [CrossRef]
  16. L. Liu, Y. Ding, K. Yvind, and J. M. Hvam, “Silicon-on-insulator polarization splitting and rotating device for polarization diversity circuits,” Opt. Express 19, 12646–12651 (2011). [CrossRef]
  17. Y. Ding, L. Liu, C. Peucheret, and H. Ou, “Fabrication tolerant polarization splitter and rotator based on a tapered directional coupler,” Opt. Express 20, 20021–20027 (2012). [CrossRef]
  18. D. Dai and J. E. Bowers, “Novel concept for ultracompact polarization splitter–rotator based on silicon nanowires,” Opt. Express 19, 10940–10949 (2011). [CrossRef]
  19. V. R. Almeida, Q. Xu, C. A. Barrios, and M. Lipson, “Guiding and confining light in void nanostructure,” Opt. Lett. 29, 1209–1211 (2004). [CrossRef]
  20. T. Baehr–Jones, M. Hochberg, G. Wang, R. Lawson, P. A. Sullivan, L. Dalton, A. K.-Y. Jen, and A. Scherer, “Optical modulation and detection in slotted silicon waveguides,” Opt. Express 13, 5216 (2005). [CrossRef]
  21. X. Tu, J. Song, T.-Y. Liow, M. K. Park, J. Q. Yiying, J. S. Kee, M. Yu, and G.-Q. Lo, “Thermal independent silicon-nitride slot waveguide biosensor with high sensitivity,” Opt. Express 20, 2640–2648 (2012). [CrossRef]
  22. A. Säynätjoki, L. Karvonen, T. Alasaarela, X. Tu, T. Y. Liow, M. Hiltunen, A. Tervonen, G. Q. Lo, and S. Honkanen, “Low-loss silicon slot waveguides and couplers fabricated with optical lithography and atomic layer deposition,” Opt. Express 19, 26275–26282 (2011). [CrossRef]
  23. Z. Wang, N. Zhu, Y. Tang, L. Wosinski, D. Dai, and S. He, “Ultracompact low-loss coupler between strip and slot waveguides,” Opt. Lett. 34, 1498–1500 (2009). [CrossRef]
  24. FIMMWAVE/FIMMPROP, Photon Design Ltd., http://www.photond.com .
  25. L. Bruchhaus, S. Bauerdick, L. Peto, U. Barth, A. Rudzinski, J. Mussmann, J. Klingfus, J. Gierak, and H. Hövel, “High resolution and high density ion beam lithography employing HSQ resist,” Microelectron. Eng. 97, 48–50(2012). [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