Figure 4
From: Wavelength-tunable passively mode-locked mid-infrared Er3+-doped ZBLAN fiber laser

Measured spectra of the CML at 2797 nm before and after one hour operation.
From: Wavelength-tunable passively mode-locked mid-infrared Er3+-doped ZBLAN fiber laser

Measured spectra of the CML at 2797 nm before and after one hour operation.