Fig. 3From: Inducing tunable single-mode operation of Fabry-Perot semiconductor laser coupled with very-short cavity with selective optical feedbackOutput spectra of the laser under OFB strengths of (a) ΓRex/Rf = 0.035, (b) ΓRex/Rf = 0.05, and (c) ΓRex/Rf = 0.5Back to article page