TiS2-based saturable absorber for ultrafast fiber lasers  

作　　者：X. ZHU S. CHEN M. ZHANG L. CHEN Q. Wu J. ZHAO Q．JIANG Z．ZHENG H．ZHANG 

机构地区：[1]School of Electronic and Information Engineering, Beihang University, Beijing 100191, China [2]Department of Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China [3]College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen 518118, China [4]College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China

出　　处：《Photonics Research》2018年第10期I0046-I0050,共5页光子学研究（英文版）

基　　金：Fundamental Research Funds for the Central Universities;National Natural Science Foundation of China(NSFC)(51778030,61505005,61505112)

摘　　要：We fabricate titanium disulfide(TiS2) using a liquid exfoliation method and subsequently a TiS2-based device by optically depositing the TiS2 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 TiS2-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 TiS2-based saturable absorber for ultrashort pulse generation and highlight the great potential of such devices in two-dimensional nanomaterials-related photonics.We fabricate titanium disulfide （TiS2） using a liquid exfoliation method and subsequently a TiS2-based device by optically depositing the TiS2 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 TiSe-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 TiS2-based saturable absorber for ultrashort pulse generation and highlight the great potential of such devices in two-dimensional nanomaterials-related photonics.

关 键 词：液体剥离方法 激光器 通讯技术 发展现状 

分 类 号：TN248[电子电信—物理电子学] TN92