Fig. 1. Schematic diagram of a ultra-broadband OFC generation based on a 1550 nm-VCSEL under optoelectronic feedback

Fig. 2. p-μ curves of a free-running 1550 nm-VCSEL

Fig. 3. Bifurcation diagrams of the power extreme values of X-PC and Y-PC outputs from a 1550 nm-VCSEL versus different optoelectronic feedback ζ under μ=5. (a) τ=0.1 ns; (b) τ=0.3 ns; (c) τ=0.5 ns

Fig. 4. Time series (first and second columns) and optical spectra (third and fourth columns) of the X-PC and Y-PC outputs of 1550 nm-VCSEL under μ=5 and τ=0.1 ns with different value of ζ. (a)--(d) ζ=0.220; (e)--(h) ζ=0.620; (i)--(l) ζ=0.641

Fig. 5. Optical spectra of X-PC and Y-PC outputs of 1550 nm-VCSEL under μ=5 and τ=0.1 ns with different ζ, where Fig.5 (a)--(h) correspond to ζ=0.120, 0.200, 0.360, 0.430, 0.440, 0.520, 0.600, 0.664, respectively. (a)--(d) Optical spectra of Y-PC; (e)--(h) optical spectra of X-PC

Fig. 6. Power spectra of X-PC and Y-PC outputs of 1550 nm-VCSEL under μ=5 and τ=0.1 ns with different ζ, where Fig. 6(a)--(h) correspond to ζ=0.120, 0.200, 0.360, 0.430, 0.440, 0.520, 0.600, 0.664, respectively. (a)--(d) Power spectra of Y-PC; (e)--(h) power spectra of X-PC