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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)
http://dx.doi.org/10.1364/OE.21.016331


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Abstract

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

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

Citation
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)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-14-16331


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