Large-area tungsten disulfide for ultrafast photonics
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Large-area tungsten disulfide for ultrafast photonics. / Yan, Peiguang; Chen, Hao; Yin, Jinde; Xu, Zihan; Li, Jiarong; Jiang, Zike; Zhang, Wenfei; Wang, Jinzhang; Li, Irene Ling; Sun, Zhipei; Ruan, Shuangchen.
In: Nanoscale, Vol. 9, No. 5, 2017, p. 1871-1877.Research output: Contribution to journal › Article › Scientific › peer-review
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T1 - Large-area tungsten disulfide for ultrafast photonics
AU - Yan, Peiguang
AU - Chen, Hao
AU - Yin, Jinde
AU - Xu, Zihan
AU - Li, Jiarong
AU - Jiang, Zike
AU - Zhang, Wenfei
AU - Wang, Jinzhang
AU - Li, Irene Ling
AU - Sun, Zhipei
AU - Ruan, Shuangchen
PY - 2017
Y1 - 2017
N2 - Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have attracted significant interest in various optoelectronic applications due to their excellent nonlinear optical properties. One of the most important applications of TMDs is to be employed as an extraordinary optical modulation material (e.g., the saturable absorber (SA)) in ultrafast photonics. The main challenge arises while embedding TMDs into fiber laser systems to generate ultrafast pulse trains and thus constraints their practical applications. Herein, few-layered WS2 with a large-area was directly transferred on the facet of the pigtail and acted as a SA for erbium-doped fiber laser (EDFL) systems. In our study, WS2 SA exhibited remarkable nonlinear optical properties (e.g., modulation depth of 15.1% and saturable intensity of 157.6 MW cm(-2)) and was used for ultrafast pulse generation. The soliton pulses with remarkable performances (e.g., ultrashort pulse duration of 1.49 ps, high stability of 71.8 dB, and large pulse average output power of 62.5 mW) could be obtained in a telecommunication band. To the best of our knowledge, the average output power of the mode-locked pulse trains is the highest by employing TMD materials in fiber laser systems. These results indicate that atomically large-area WS2 could be used as excellent optical modulation materials in ultrafast photonics.
AB - Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have attracted significant interest in various optoelectronic applications due to their excellent nonlinear optical properties. One of the most important applications of TMDs is to be employed as an extraordinary optical modulation material (e.g., the saturable absorber (SA)) in ultrafast photonics. The main challenge arises while embedding TMDs into fiber laser systems to generate ultrafast pulse trains and thus constraints their practical applications. Herein, few-layered WS2 with a large-area was directly transferred on the facet of the pigtail and acted as a SA for erbium-doped fiber laser (EDFL) systems. In our study, WS2 SA exhibited remarkable nonlinear optical properties (e.g., modulation depth of 15.1% and saturable intensity of 157.6 MW cm(-2)) and was used for ultrafast pulse generation. The soliton pulses with remarkable performances (e.g., ultrashort pulse duration of 1.49 ps, high stability of 71.8 dB, and large pulse average output power of 62.5 mW) could be obtained in a telecommunication band. To the best of our knowledge, the average output power of the mode-locked pulse trains is the highest by employing TMD materials in fiber laser systems. These results indicate that atomically large-area WS2 could be used as excellent optical modulation materials in ultrafast photonics.
KW - TRANSITION-METAL DICHALCOGENIDES
KW - SWITCHED FIBER LASER
KW - EVANESCENT FIELD INTERACTION
KW - MOS2 SATURABLE ABSORBER
KW - SINGLE-LAYER
KW - WS2
KW - GRAPHENE
KW - ABSORPTION
KW - SHEETS
KW - WSE2
U2 - 10.1039/c6nr09183k
DO - 10.1039/c6nr09183k
M3 - Article
VL - 9
SP - 1871
EP - 1877
JO - Nanoscale
JF - Nanoscale
SN - 2040-3364
IS - 5
ER -
ID: 11465300
