Abstract
We successfully demonstrate a Q-switched erbium-doped fiber laser (EDFL) using titanium dioxide (TiO2) coated onto a fiber ferrule as a saturable absorber (SA). The fiber ferrule is immersed into a TiO2 colloid, using the dip-coating method to prepare the SA. Stable pulses operating at 1,565 nm with a 3 dB bandwidth of 1.9 nm are achieved within the pump power range from 63.41 to 104.62 mW. A maximum repetition rate of 72.89 kHz and a pulse energy of 29.91 nJ are respectively generated, while the minimum pulse width is 3.02 μs. To the best of our knowledge, this is the first demonstration of EDFL passive Q-switching using TiO2 colloid.
Original language | English |
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Pages (from-to) | 595-599 |
Number of pages | 5 |
Journal | Journal of Russian Laser Research |
Volume | 43 |
Issue number | 5 |
DOIs | |
Publication status | Published - Sept 2022 |
Keywords
- TiO colloids
- energy efficiency
- passive Q-switching
- saturable absorber