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- Title
Q‐switched thulium‐doped fibre ring lasers operating at 1.9 μm using multi‐walled carbon nanotubes in UV‐curing resin.
- Authors
Sakata, H.; Kimpara, K.; Takahashi, N.
- Abstract
The passively Q‐switched operation of all‐fibre thulium fibre lasers using UV‐curing resin doped with multi‐walled carbon nanotubes as a saturable absorber is demonstrated. A single‐mode thulium‐doped silica fibre is pumped by a laser diode emitting at 1.63 µm through a wavelength‐division multiplexing coupler. Unidirectional laser output from the fibre ring resonator is attained by using the retroreflector at the counter‐directional output port. The fibre laser exhibits 1.9 µm wavelength pulsed oscillation at a repetition rate of 7.2 kHz. When the pump power is increased to 161 mW, the output pulse power is measured by 150 mW with a pulse width of 3.2 µs.
- Publication
Electronics Letters (Wiley-Blackwell), 2016, Vol 52, Issue 1, p63
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2015.2410