Photonics Research, 2018, 6 (10): 10000C44, Published Online: Sep. 25, 2018
TiS2-based saturable absorber for ultrafast fiber lasers
Abstract
We fabricate titanium disulfide (TiS 2 ) using a liquid exfoliation method and subsequently a TiS 2 -based device by optically depositing the TiS 2 material onto the microfiber. This device exhibits a strong nonlinear saturable absorption property with an optical modulation depth of 8.3% at 1560 nm. With the implementation of this all-fiber TiS 2 -based saturable absorber, we demonstrate that both mode-locking and Q -switching operation can be obtained in a turn-key all-fiber erbium-doped laser cavity. Our findings constitute the first example, to the best of our knowledge, of a TiS 2 -based saturable absorber for ultrashort pulse generation and highlight the great potential of such devices in two-dimensional nanomaterials-related photonics.
X. Zhu, S. Chen, M. Zhang, L. Chen, Q. Wu, J. Zhao, Q. Jiang, Z. Zheng, H. Zhang. TiS2-based saturable absorber for ultrafast fiber lasers[J]. Photonics Research, 2018, 6(10): 10000C44.