Dual wavelength high power double-clad erbium/ytterbium-doped fiber laser
A dual wavelength high power double-clad erbium/ytterbium-doped fiber laser with a narrowest spacing of 0.4 nm and a M-2 value of close to unity is presented in the region of 1565 nm. This result can be realized with a significant improvement of the mode competition problem using a loop mirror as a...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/14612/ |
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| Institution: | Universiti Malaya |
| Summary: | A dual wavelength high power double-clad erbium/ytterbium-doped fiber laser with a narrowest spacing of 0.4 nm and a M-2 value of close to unity is presented in the region of 1565 nm. This result can be realized with a significant improvement of the mode competition problem using a loop mirror as a comb filter. The wavelength region can also be varied using polarization controllers in the loop mirror. This dual-wavelength fiber laser with side mode suppression ratio (SMSR) of 40 dB is quite stable, and the output power variance is as low as 0.46 dB. |
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