S. E. Alavi, I. S. Amiri, M. R. K. Soltanian, R. Penny, A. S. M. Supa’at, H. Ahmad. Multiwavelength generation using an add-drop microring resonator integrated with an InGaAsP/InP sampled grating distributed feedback[J]. Chinese Optics Letters, 2016, 14(2): 021301