Fig. 3From: Quantum dash multi-wavelength lasers for Tbit/s coherent communications and 5G wireless networksa Measured RIN for the whole laser and three filtered channels in the frequency range from 10 MHz to 10 GHz. b Optical linewidth of the frequency noise spectra from three filtered channels of 1551.824 nm, 1552.924 nm and 1553.474 nm. c The single-sideband (SSB) phase noise of the RF beating signalBack to article page