Highly efficient dual-wavelength ytterbium-doped fiber linear cavity laser based on cascaded fiber Bragg gratings
Abstract
A highly efficient dual-wavelength ytterbium-doped fiber linear cavity laser is experimentally demonstrated. Two cascaded fiber Bragg gratings are used as the wavelength selection component. Stable dualwavelength operation and wavelength-switching modes can be realized by appropriately adjusting the polarization state of the intra-cavity light and the reflectivity of the laser cavity. For dual-wavelength operation, the power difference between the two wavelength lasers (1029.7 and 1040.4 nm) can be less than 0.6 dB and the signal-to-amplified spontaneous emission (ASE) ratio is more than 52 dB. The slope efficiency of the laser is as high as 63.9%.
- Publication:
-
Laser Physics
- Pub Date:
- June 2009
- DOI:
- 10.1134/S1054660X09060139
- Bibcode:
- 2009LaPhy..19.1257W
- Keywords:
-
- 42.55.Wd;
- 42.60.Pk;
- 42.81.Gs