[1]
“Multi-Wavelength Filtering Wideband by Cascade Bragg Reflectors in Optical Waveguides”, IJIEE, vol. 3, no. 5, pp. 506–509, Sep. 2013, Accessed: Oct. 25, 2026. [Online]. Available: https://ijiee.org/index.php/ijiee/article/view/735