Spectrum research on the passive mode-locked Yb~(3+)-doped fiber laser

摘要

In this paper, the spectrum characters of passive mode locked Yb~(3+)-doped fiber laser were investigated in detail, tunable four wavelengths with more than 30 nm tuning range, single wavelength, double wavelengths, multi-wavelengths laser output have all been observed in experiment. Moreover, these results were analyzed theoretically.