Fig. 1. Setup of the solid-state Mamyshev oscillator. DM, dichroic mirror; ISO, isolator. Inset, gain curves of the two media and transmission profiles of the two BPFs.

Fig. 2. Details of the PPLN ridge waveguide. (a) Mode profile (Ez component) of the fundamental TE00 mode at 1064 nm. LN, lithium niobate; LT, lithium tantalite. (b) GV and GVD coefficients as functions of wavelength.

Fig. 3. Performance of the dual outputs, (a), (b) for output1 and (c), (d) for output2, from the solid-state Mamyshev oscillator. (a), (c) Normalized pulse profiles before (blue curve) and after (black curve) GDD compensation; (b), (d) normalized output spectra, overlaid with the BPF transmission profiles.

Fig. 4. Intracavity evolution of (a) pulse profiles and (b) optical spectra, normalized at each step to show the details of the profiles.

Fig. 5. Output pulse profile and optical spectrum of the second design.

Fig. 6. FF and SH pulse profiles, illustrating the GVM effect.

Fig. 7. (a)–(d) Evolution of FF and SH optical spectra with the propagating distance, normalized at each step to show the details of the profiles. The peak power is 15 kW, and the GVM is 800 fs/mm. Δk used in (a), (c) and (b), (d) is −4π mm−1 and −10π mm−1, respectively. (e) Resonant SH frequencies obtained numerically (solid line) and calculated analytically (dashed line).

Fig. 8. (a) Snapshots of FF and SH optical spectra along the propagation, with set Δk at −20π mm−1. Resonant frequencies are labeled as FF_R and SH_R. (b) Peak frequency shifts of FF_red and FF_blue as functions of wave vector mismatch.

Fig. 9. (a)–(d) FF and SH pulse profiles and the optical chirp of FF. (e)–(h) Evolution of FF optical spectrum with the propagating distance, normalized at each step to show the details of the profiles. Δk is set at −10π mm−1, and the peak power is set at 15 kW. (a), (e) GVM=0, GVD=0 for FF; (b), (f) GVM=0, GVD=−237  fs2/mm; (c), (g) GVM=800  fs/mm, GVD=−237  fs2/mm; (d), (h) GVM=800  fs/mm, GVD=237  fs2/mm.