Optical Blood Glucose Sensor Based on Multimode Interference (MMI) Fabricated by Thermal Imprint Process

Kim, Jun‐Hyun; Bae, Han Uk; Kwak, Hyun Su; Lee, Tae Ho; Cho, Sang Uk; Jeong, Myung Yung

doi:10.1166/nnl.2017.2465

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This optical configuration has been reviewed extensively in several recent review articles [ 28 , 29 , 30 , 31 ], highlighting its advantages of being an all-fiber solution that is easy to manufacture, package, and interconnect to other fiber components. Interestingly, MMI effects have been used previously for sugar detection in integrated devices [ 32 , 33 ]. Additionally, a theoretical report exists where MMI effects in optical fibers were studied for glucose sensing using a structure consisting of a segment of PCF as the multimodal section [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Sugar Detection in Aqueous Solution Using an SMS Fiber Device

Mar-Abundis

Fuentes-Rubio

Domínguez-Cruz

et al. 2023

Sensors

View full text Add to dashboard Cite

We report on the fabrication and testing of a fiber optics sensor based on multimodal interference effects, which aims at the detection of different types of sweeteners dissolved in water. The device, which has a simple structure, commonly known as the SMS configuration, is built by splicing a segment of commercial-grade, coreless multimode fiber (NC-MMF) between two standard single-mode fibers (SMFs). In this configuration, the evanescent field traveling outside the core of the NC-MMF allows the sensing of the refractive index of the surrounding media, making it possible to detect different levels of sugar concentration. The optical sensor was tested with aqueous solutions of glucose, fructose, and sucrose in the concentration range from 0 wt% to 20 wt% at room temperature. The proposed device exhibits a linear response with a sensitivity of 0.1835 nm/wt% for sucrose, 0.1687 nm/wt% for fructose, and 0.1694 nm/wt% for glucose, respectively, with a sensing resolution of around 0.5 wt%. Finally, we show that, despite having similar concentration behavior, some degree of discrimination between the different sugars can be achieved by assessing their thermo-optical response.

show abstract