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A novel multilayer micro-ring resonator based optical network on chip

M. CHANNOUFI1,2,* , P. LECOY2, S. LE-BEUX3, R. ATTIA1, B. DELACRESSONNIERE4

Affiliation

  1. SERCOM ( Laboratory of Electronic Systems and Communication Networks), Polytechnic school of Tunisia, Tunisia
  2. ETIS (Research Team in Information Processing and Systems), ENSEA - University of Cergy-Pontoise - CNRS, France
  3. Lyon Institute of Nanotechnology, Central School of Lyon, France
  4. LaMIPS (Laboratory of Microelectronics and Physics of Semiconductors), CRISMAT-NXPSemiconductors-PRESTO engineering, CNRS, Caen, France

Abstract

The next generation of multiprocessor systems on chip requires development and improvement of innovative implementations of optical networks on chip (ONoC). ONoC efficiency mostly relies on crosstalk between waveguides and on optical power loss. Taking into account new integration capabilities in order to achieve the best design compromise minimizing power loss and crosstalk is thus mandatory. In this paper, we propose a novel switch implementation based upon a multi-layer microring resonator, allowing efficient light coupling and switching between superposed waveguides. Such microring resonator avoids waveguide crossing, thus contributing to reduce propagation losses. A transmission loss from -4.8 to -7 dB, crosstalk between -17 and -29 dB, a quality factor about 202 allowing a bandwidth up to 1THz, are demonstrated with a 1.65 μm radius microring. Furthermore, this paper demonstrates that pure curvature loss remains less than -0.4 dB for microring radii less than 2μm thus allowing miniaturization of switch size..

Keywords

Optical design and fabrication, Resonators, Multilayers.

Citation

M. CHANNOUFI, P. LECOY, S. LE-BEUX, R. ATTIA, B. DELACRESSONNIERE, A novel multilayer micro-ring resonator based optical network on chip, Optoelectronics and Advanced Materials - Rapid Communications, 8, 3-4, March-April 2014, pp.192-197 (2014).

Submitted at: Feb. 12, 2013

Accepted at: March 13, 2014