Lip Zhan Hong, Tan Sin Jin, Sulaiman Wadi Harun, and Cheng Xiau San. “Double-Brillouin Frequency Spacing Multi-Wavelength Brillouin Erbium Fiber Laser in Double Cavities Configuration”. Journal of Advanced Research in Applied Sciences and Engineering Technology, vol. 32, no. 3, Oct. 2023, pp. 52-58, doi:10.37934/araset.32.3.5258.