An optical fiber sensing system for concentration measurement, based on Tipped Fiber Bragg Grating is presented. Laser Diode (LD) with wavelength of 1550 nm has been used. The Fiber Bragg Grating is cleaved by using optical cleaver. The FBG tip is immersed in different concentrations of Sodium Chloride (Nacl) solutions range from 5% to 25% and Sucrose solutions range from 10% to 50%. As the concentration of solution increases the shift in Bragg wavelength toward red region increases. The sensitivities of this sensor for different concentrations of Nacl solutions and Sucrose solutions are 𝟖. 𝟑 × 𝟏𝟎−𝟖μm/(%w/v) and 𝟑. 𝟎𝟖𝟓 × 𝟏𝟎−𝟔 μm/(% w/v),respectively..

An optical fiber sensing system for concentration measurement, based on Tipped Fiber Bragg Grating is presented. Laser Diode (LD) with wavelength of 1550 nm has been used. The Fiber Bragg Grating is cleaved by using optical cleaver. The FBG tip is immersed in different concentrations of Sodium C...