A tunable and switchable single-longitudinal-mode dual-wavelength fiber laser for microwave generation

A tunable and switchable single-longitudinal-mode (SLM) dual-wavelength fiber laser incorporating a reconfigurable dual-pass Mach-Zehnder interferometer (MZI) filter and its application in microwave generation was proposed and demonstrated. By incorporating a dual-pass MZI into an erbium-doped fiber ring cavity, tunable and switchable SLM dual-wavelength operation can be conveniently realized.