Photonics Research, Volume. 4, Issue 3, 0111(2016)
Dark solitons in WS2 erbium-doped fiber lasers
Fig. 1. Schematic of the mode-locked EDF laser. SMF, single mode fiber; COL, collimator; QWP, quarter-wave plate; ISO, polarization-dependent isolator.
Fig. 2. Different optical spectra of dark solitons are obtained with the different polarization states when we rotate HWPs and QWPs in the fiber laser. (a) The optical spectrum is smooth with the 4.8 nm spectral width at 1530 nm. (b) The optical spectrum is a bit rough with the 4.1 nm spectral width. (c) and (d) both have the 0.16 nm spectral width.
Fig. 3. Due to the different intracavity power, the different pulse sequences corresponding to Fig. 2 are presented. The oscilloscope trace of dark solitons is in the time scales of 10 ns/div.
Fig. 4. (a) Radio frequency (RF) spectrum of dark solitons. (b) Phase noise measurement at 116.5 MHz, and the timing jitter is about 1 ps.
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Wenjun Liu, Lihui Pang, Hainian Han, Zhongwei Shen, Ming Lei, Hao Teng, Zhiyi Wei. Dark solitons in WS2 erbium-doped fiber lasers[J]. Photonics Research, 2016, 4(3): 0111
Special Issue: TERAHERTZ PHOTONICS: APPLICATIONS AND TECHNIQUES
Received: Feb. 3, 2016
Accepted: Mar. 11, 2016
Published Online: Sep. 29, 2016
The Author Email: Zhiyi Wei (zywei@iphy.ac.cn)