Efficient Wavelength-Tunable Gain-Switching and Gain-Switched Mode-Locking Operation of a Heavily Er<sup>3+</sup>-Doped ZBLAN Mid-Infrared Fiber Laser
We report on an efficient wavelength-tunable gain-switched and gain-switched mode-locked Er<sup>3+</sup>-doped double-clad fiber laser with a linear cavity. Stable gain-switching and gain-switched mode-locking were achieved with slope efficiencies of 28.6% and 34.5% with respect to launc...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7967664/ |
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| Summary: | We report on an efficient wavelength-tunable gain-switched and gain-switched mode-locked Er<sup>3+</sup>-doped double-clad fiber laser with a linear cavity. Stable gain-switching and gain-switched mode-locking were achieved with slope efficiencies of 28.6% and 34.5% with respect to launched pump power, respectively. The gain-switched laser pulses were generated with a maximum average output power of around 110 mW, pulse width of 661.2 ns, and calculated peak power of ∼16.5 W at a repetition rate of 10 kHz. At the same repetition, the gain-switched mode-locked laser pulses were generated with a maximum average output power of around 514 mW, subpulse repetition rate of ∼30.7 MHz, and peak power of higher than 154 W at a repetition rate of 10 kHz when the wavelength was tuned to 2.78 <italic>μ</italic>m. This is, to the best of our knowledge, the first demonstration of a gain-switched self-started mode-locked fiber laser near 3 <italic>μ</italic>m. |
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| ISSN: | 1943-0655 |