Ahmad H, Reduan S A, Zulkifli A Z, Tiu Z C
Appl Opt. 2017 May 1;56(13):3841-3847. doi: 10.1364/AO.56.003841.
A tunable passively Q-switched for S+/S band thulium-fluoride fiber (TFF) laser using single-walled carbon nanotubes as a saturable absorber is proposed and demonstrated. The tunability of the proposed laser covers a wavelength region of 1450.0-1512.0 nm, with a range of 62.0 nm. Stable Q-switched operation can be obtained at a pump power of 115.7-229.9 mW at 1492.0 nm. The resulting pulses have a measured repetition rate and pulse width of 12.0-36.4 kHz and 6.2-3.6 μs, respectively. The maximum pulse energy that was achieved in this experiment is 122.8 nJ. To the author's knowledge, this is the first reported tunable passively Q-switched TFF laser that covers the S+/S region that has been demonstrated.
提出并演示了一种以单壁碳纳米管作为可饱和吸收体的用于S+/S波段氟化铥光纤（TFF）激光器的可调谐被动调Q激光器。所提出激光器的可调谐性覆盖1450.0 - 1512.0 nm的波长范围，跨度为62.0 nm。在1492.0 nm波长处，泵浦功率为115.7 - 229.9 mW时可实现稳定的调Q运转。所产生的脉冲经测量重复频率和脉宽分别为12.0 - 36.4 kHz和6.2 - 3.6 μs。本实验中实现的最大脉冲能量为122.8 nJ。据作者所知，这是首次报道的覆盖并演示了S+/S区域的可调谐被动调Q TFF激光器。
