TY  - JOUR
AB  - Purpose This study aims to propose a new scheme for designing a high-sensitivity optical biosensor. For this, two agents have been considered: reflection-type micro-resonators, which filter the noise of the pump, and coupled-ring reflectors (CRRs), which are coupled to partial reflecting elements in the bus waveguide to create Fano-resonance. These two agents improve the sensor sensitivity and have low-power optical switching/modulation.Design/methodology/approach The proposed model is based on the coupling of the CRRs with the Fabry–Pérot cavity. The slope of the Fano-resonance line shape and consequently the sensitivity of the proposed CRRs are higher than those of conventional microring resonators.Findings The proposed scheme has many characteristics: CRRs have been used to create a higher slope of the Fano-resonance line shape; the sensitivity of the sensor shows improvement on the basis of reflection-type micro-resonators and by the removal of the pump noise; the designed sensor has low-power optical switching/modulation; and the modeling and designing of a novel high-sensitivity resonator is based on coupling the CRRs with the Fabry–Pérot cavity.Originality/value This study has proposed a new scheme for designing a high-sensitivity optical biosensor. This method is based on the improvement of the sensitivity by two agents: reflection-type micro-resonators, which filter the noise of the pump, and coupled-ring reflectors, which are coupled to partial reflecting elements in the bus waveguide to create Fano-resonance.
VL  - 39
IS  - 6
SN  - 0260-2288
DO  - 10.1108/SR-01-2018-0014
UR  - https://doi.org/10.1108/SR-01-2018-0014
AU  - Feili Sahar
AU  - Sabouhi H.R.
AU  - Sobhani Hassan
AU  - Traz M.
PY  - 2019
Y1  - 2019/01/01
TI  - Design and analysis of all optical biochemical sensors based on the coupled-ring reflectors
T2  - Sensor Review
PB  - Emerald Publishing Limited
SP  - 857
EP  - 861
Y2  - 2024/04/25
ER  -