Switchable multiwavelength erbium-doped fiber laser with cascaded fiber grating cavities

  title={Switchable multiwavelength erbium-doped fiber laser with cascaded fiber grating cavities},
  author={Qinghe Mao and J. Lit},
  journal={IEEE Photonics Technology Letters},
We propose a new concept to produce switchable multiwavelength oscillations with a cascaded fiber Bragg grating overlapping cavity erbium-doped fiber laser. The laser can be designed to operate in multiwavelength or in wavelength switching modes. The different lines have different thresholds. For three-wavelength oscillation, the output powers are linear or piecewise linear functions of the input pump power. An output with a variation of only 1.5 dB has been achieved with an input pump power of… CONTINUE READING
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