Widely tunable wavelength spacing dual-wavelength single longitudinal mode erbium doped fiber laser
The lasing wavelength spacing is widely tunable in a range from 2nm to 18nm. The birefringent fiber filter benefits the simultaneous oscillation of dual-wavelength in a single laser cavity. The output peak power of the lasing dual-wavelength is approximately equalized at room temperature. The single longitudinal mode operation of the lasing dual-wavelength is verified by FabryPerot scanning interferometer. The modulation performance of single lasing wavelength is proved to be good according to the clear eye diagram.
single longitudinal mode erbium doped fiber laser birefringent fiber filter dual-wavelength fiber laser