Design of a silicon optical micro-ring resonator sensor for improved sensitivity and selectivity

Hyun-Shik Lee; B. H. O; S. G. Lee; El-Hang Lee

doi:10.1117/12.769376

12 February 2008 Design of a silicon optical micro-ring resonator sensor of improved sensitivity and selectivity

Hyun-Shik Lee, B. H. O, S. G. Lee, El-Hang Lee

Proceedings Volume 6897, Optoelectronic Integrated Circuits X; 68970W (2008) https://doi.org/10.1117/12.769376
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

We report on the successful design of a silicon micro-ring resonator for improved sensitivity and selectivity in the optical bio-sensing applications. By controlling the waveguide width w, the radius of the resonator R, and the waveguide separation S, we improved the sensitivity and the selectivity of the micro-ring resonator sensor. We obtained the sensitivity of 0.79nm/0.001, which is a 50% increase over the sensitivity without the reduction of the waveguide width. We obtained the selectivity of more than 3,000 with nearly 100% output intensity. We compared these results with the results obtained from the well-established Finite Difference Time Domain (FDTD) method and found that they are in excellent agreement with each other.

Citation Download Citation

Hyun-Shik Lee, B. H. O, S. G. Lee, and El-Hang Lee "Design of a silicon optical micro-ring resonator sensor of improved sensitivity and selectivity", Proc. SPIE 6897, Optoelectronic Integrated Circuits X, 68970W (12 February 2008); https://doi.org/10.1117/12.769376

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