Multiwavelength erbium-ytterbium co-doped fiber laser / by Mansour Dastmalchi.
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"A fiber ring laser, using erbium-ytterbium co-doped double clad fiber is proposed and demonstrated to produce a medium power multiwavelength fiber laser. The experimental results show that the ring resonator configuration can produce more output power compared to a laser based on bidirectional pumping scheme in Fabry-Perot resonator configuration. To stabilize the lasing lines we used an unpumped erbium doped fiber as saturable absorber.