"Effect of the number of Grooves of the distance between the optical fiber using a Wavelength of the window (λ=850nm)’’. cbej [Internet]. 2022 Dec. 9 [cited 2024 Jul. 22];23(99):45-54. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6579