High sensitivity evanescent field Bragg grating sensor

Chrysis, A.N.; Lee, S.M.; Dagenais, M.

doi:10.1109/leos.2004.1363297

Cited by 2 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Introduction: Conventionally, fibre refractive index (RI) sensing is based on the evanescent field effect of guided modes and realised by wavelength detection [1,2]. The reason is that the change of the ambient RI makes a difference to the effective RIs (ERIs) of the operating guided modes and then leads to a wavelength shift of the monitored output spectrum.…”

mentioning

confidence: 99%

Influence of ambient refractive index on radiation modes

Tian

Yang

2018

Electron. lett.

View full text Add to dashboard Cite

To explore fibre refractive index (RI) sensing based on radiation modes, the influences of ambient RI on radiation modes are investigated by a leaky mode approximation in a two-layer fibre. Based on the analytical analysis and simulation results, it is identified that the change of ambient RI has no effect on the real part of the complex propagation constant of a leaky mode, but a remarkable effect on the imaginary part. More importantly, the influence of the medium's absorption loss on the imaginary part is almost negligible. If the medium's absorption loss is lower than 3.521 × 10 3 dB/cm, the induced average deviation rate of the imaginary part is <1.91%.

show abstract

mentioning

confidence: 99%