文摘
A 1,064聽nm band Ytterbium doped fiber laser (YDFL) is proposed and investigated. Using 70聽cm gain fiber and recycling pumping scheme, a high slope efficiency of 50聽% and low threshold power of 53聽mW are obtained. The power variation is less than 0.1聽dB in 13聽nm tuning span. Using the Vernier effect, near single frequency lasing is realized for the whole tuning range in 2聽dBm output power. Have advantages of simpler structure, larger pump slope efficiency and possible shorter cavity, the YDFL may find potential applications in various ways.