Abstract
The filterless erbium-doped fiber laser can generate continuous-wave broadband when highly nonlinear fibers are inserted into the cavity. In this work we demonstrate a linear cavity filterless erbium-doped fiber laser. The spatial-hole burning (SHB) effect in the linear cavity fiber laser is important for the CW broadband generation. When the pump power is 300mW, the bandwidth of the laser with SHB effect is 51.77nm while the bandwidth of the laser without SHB effect is 18.14nm.
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