Integrated photonic systems based on transformation optics enabled gradient index devices

Qi Wu; Jeremiah P Turpin; Douglas H Werner

doi:10.1038/lsa.2012.38

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Integrated photonic systems based on transformation optics enabled gradient index devices

Original Article

- Integrated photonic systems based on transformation optics enabled gradient index devices
- Light: Science & Applications Vol. 1, Issue 1, (2012)
- Affiliations：
  
  The Pennsylvania State University, Department of Electrical Engineering, University Park, PA 16802, USA
- Author bio：
  
  Professor DH Werner, Department of Electrical Engineering, The Pennsylvania State University, 211A Electrical Engineering East, University Park, PA 16802, USA E-mail: dhw@psu.edu
- Funds：
- DOI：10.1038/lsa.2012.38
  CLC：
- Published：2012-03，
  
  Published Online：23 November 2012，
  
  Received：28 January 2012，
  
  Revised：07 May 2012，
  
  Accepted：04 July 2012
- Accepted：
Scan QR Code
Wu, Q., Turpin, J. P. & Werner, D. H. Integrated photonic systems based on transformation optics enabled gradient index devices. Light: Science & Applications, 1, e38 (2012).
DOI：

Wu, Q., Turpin, J. P. & Werner, D. H. Integrated photonic systems based on transformation optics enabled gradient index devices. Light: Science & Applications, 1, e38 (2012). DOI： 10.1038/lsa.2012.38.

摘要

Abstract

Integrated photonics is expected to play an increasingly important role in optical communications

imaging

computing and sensing with the promise for significant reduction in the cost and weight of these systems. Future advancement of this technology is critically dependent on an ability to develop compact and reliable optical components and facilitate their integration on a common substrate. Here we reveal

with the utility of the emerging transformation optics technique

that functional components composed of planar gradient index materials can be designed and readily integrated into photonic circuits. The unprecedented design flexibility of transformation optics allows for the creation of a number of novel devices

such as a light source collimator

waveguide adapters and a waveguide crossing

which have broad applications in integrated photonic chips and are compatible with current fabrication technology. Using the finite-difference time-domain method

we perform full-wave numerical simulations to demonstrate their superior optical performance and efficient integration with other components in an on-chip photonic system. These components only require spatially-varying dielectric materials with no magnetic properties

facilitating low-loss

broadband operation in an integrated photonic environment.

关键词

Keywords

gradient index materialintegrated photonic systemquasi-conformal mappingtransformation optics

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