Chinese Science Bulletin

, Volume 57, Issue 11, pp 1241–1245 | Cite as

Y-shaped beam splitter by graded structure design in a photonic crystal

  • Kun Ren
  • XiaoBin Ren
Open Access
Article Optics


We propose a method to bend a self-collimated beam in a photonic crystal. The beam bending relies on the gradual variation of the constitutive parameters of the photonic crystal. A new Y-shaped beam splitter is designed with a composite structure constructed using two graded photonic crystals. We demonstrate that the incident beam is divided into two output beams by the designed splitter. The power ratio of the two beams can be adjusted easily by changing the location of the input beam.


beam splitter beam bending graded photonic crystal self-collimation 


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© The Author(s) 2012

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  1. 1.Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education; College of Precision Instrument and Opto-electronics EngineeringTianjin UniversityTianjinChina
  2. 2.College of ScienceTianjin University of Science & TechnologyTianjinChina

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