The generation of passive dual wavelengths Q-switched YDFL by MoSe2film
A simple ytterbium doped fiber laser (YDFL) setup was used to generate Q-switching pulses by using a D-shaped polished fiber as a wavelength selective filter. The gain medium used in the cavity was ytterbium doped fiber with length 70 cm. By utilizing a MoSe2 film as saturable absorber into the cavi...
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| Main Authors: | , , , , , , |
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| Format: | Article |
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John Wiley & Sons
2016
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/18094/ http://dx.doi.org/10.1088/1612-2011/13/11/115102 |
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| Summary: | A simple ytterbium doped fiber laser (YDFL) setup was used to generate Q-switching pulses by using a D-shaped polished fiber as a wavelength selective filter. The gain medium used in the cavity was ytterbium doped fiber with length 70 cm. By utilizing a MoSe2 film as saturable absorber into the cavity, a stable dual wavelength was produced at 1036.69 and 1039.22 nm. The wavelength separation of the output spectrum was 2.53 nm. We found a maximum pulse energy of 0.99 nJ and shortest pulse width of 1.2 μs. We have determined consistent dual-wavelength Q-switching pulses for the 1-micron region. |
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