Passively Mode-Locked Erbium-Doped Fiber Laser with Ge-Rich $mathbf{Si}_{1-mathbf{x}}mathbf{Ge}_{mathbf{x}}$ Saturable Absorber

摘要

The Ge-rich Si_0.052Ge_0.948 is employed as a saturable absorber to demonstrate an L-band passively mode-locked erbium-doped fiber laser with a pulsewidth of 330 fs and a spectral linewidth of 7.91 nm.