OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 16331–16336

Ultra-compact low loss polarization insensitive silicon waveguide splitter

Zhe Xiao, Xianshu Luo, Peng Huei Lim, Patinharekandy Prabhathan, Samson T. H. Silalahi, Tsung-Yang Liow, Jing Zhang, and Feng Luan  »View Author Affiliations

Optics Express, Vol. 21, Issue 14, pp. 16331-16336 (2013)

View Full Text Article

Enhanced HTML    Acrobat PDF (2523 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We observe that the cascaded typical Y junctions will introduce unwanted periodic fringes over the spectrum in practical systems when they link with multimode waveguides. To solve the problem, we design and experimentally demonstrate a wavelength insensitive multimode interferometer (MMI) based 3-dB splitter which has all the merits of Y-splitters such as polarization insensitivity and ultra-compactness. The splitter has a footprint of 1.5 × 1.8 µm2, nearly one order smaller than the previously reported MMI splitters. The measured excess losses for TE and TM modes at telecom wavelength are as low as −0.11 dB and −0.18 dB respectively.

© 2013 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.1360) Optical devices : Beam splitters
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

Original Manuscript: January 29, 2013
Revised Manuscript: February 16, 2013
Manuscript Accepted: February 16, 2013
Published: July 2, 2013

Zhe Xiao, Xianshu Luo, Peng Huei Lim, Patinharekandy Prabhathan, Samson T. H. Silalahi, Tsung-Yang Liow, Jing Zhang, and Feng Luan, "Ultra-compact low loss polarization insensitive silicon waveguide splitter," Opt. Express 21, 16331-16336 (2013)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. M. Hochberg and T. Baehr-Jones, “Towards fabless silicon photonics,” Nat. Photonics4(8), 492–494 (2010). [CrossRef]
  2. T. Baehr-Jones, T. Pinguet, P. Lo Guo-Qiang, S. Danziger, D. Prather, and M. Hochberg, “Myths and rumours in silicon photonics,” Nature6, 207–208 (2012).
  3. S. H. Tao, Q. Fang, J. F. Song, M. B. Yu, G. Q. Lo, and D. L. Kwong, “Cascade wide-angle Y-junction 1 x 16 optical power splitter based on silicon wire waveguides on silicon-on-insulator,” Opt. Express16(26), 21456–21461 (2008). [CrossRef] [PubMed]
  4. Y. Zhang, S. Yang, A. E. Lim, G. Q. Lo, C. Galland, T. Baehr-Jones, and M. Hochberg, “A compact and low loss Y-junction for submicron silicon waveguide,” Opt. Express21(1), 1310–1316 (2013). [CrossRef] [PubMed]
  5. H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, “Optical directional coupler based on Si-wire waveguides,” IEEE Photon. Technol. Lett.17(3), 585–587 (2005). [CrossRef]
  6. A. Hosseini, H. Subbaraman, D. Kwong, Y. Zhang, and R. T. Chen, “Optimum access waveguide width for 1 x N multimode interference couplers on silicon nanomembrane,” Opt. Lett.35(17), 2864–2866 (2010). [CrossRef] [PubMed]
  7. Z. Sheng, Z. Wang, C. Qiu, L. Li, A. Pang, A. Wu, X. Wang, S. Zou, and F. Gan, “A compact and low-loss MMI coupler fabricated with CMOS technology,” IEEE Photon. J.4(6), 2272–2277 (2012). [CrossRef]
  8. P. P. Sahu, “Compact multimode interference coupler with tapered waveguide geometry,” Opt. Commun.277(2), 295–301 (2007). [CrossRef]
  9. L. Soldano and E. Pennings, “Optical multi-mode interference devices based on self-imaging: principles and applications,” J. Lightwave Technol.13(4), 615–627 (1995). [CrossRef]
  10. R. Ulrich and T. Kamiya, “Resolution of self-images in planar optical waveguides,” J. Opt. Soc. Am.68(5), 583–592 (1978). [CrossRef]
  11. D. Dai and S. He, “Optimization of ultracompact polarization-insensitive multimode interference couplers based on Si nanowire waveguides,” IEEE Photon. Technol. Lett.18(19), 2017–2019 (2006). [CrossRef]
  12. K. S. Chiang and Q. Liu, “Formulae for the design of polarization-insensitive multimode interference couplers,” IEEE Photon. Technol. Lett.23(18), 1277–1279 (2011). [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