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http://dx.doi.org/10.3807/KJOP.2011.22.6.256

Design and Fabrication of Variable Optical Signal Delay Line Based on Polymer Coupled Ring Resonators  

Kwon, Oh-Sang (Department of Electronics and Communications Engineering, Kwangwoon University)
Kim, Jae-Seong (Department of Electronics and Communications Engineering, Kwangwoon University)
Chung, Young-Chul (Department of Electronics and Communications Engineering, Kwangwoon University)
Publication Information
Korean Journal of Optics and Photonics / v.22, no.6, 2011 , pp. 256-261 More about this Journal
Abstract
In this paper, a variable optical signal delay line based on coupled ring resonators is designed and fabricated in high-index contrast polymer material. The free spectral ranges (FSR) of the rings are designed to be 100 GHz, and 8 coupled rings are used. When two rings near a bus waveguide are in resonance, the optical delay is measured to be about 100 ps. When four rings are in resonance, the measured delay is about 180 ps. Both are close to the theoretical calculations.
Keywords
Polymer waveguides; Resonators; Integrated optics devices; Optical buffers; Optical delay line;
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