title: Single-wall carbon nanotubes and graphene oxide-based saturable absorbers for low phase noise mode-locked fiber lasers.
abstract: Low phase noise mode-locked fiber laser finds important applications in telecommunication, ultrafast sciences, material science, and biology, etc. In this paper, two types of carbon nano-materials, i.e. single-wall carbon nanotube (SWNT) and graphene oxide (GO), are investigated as efficient saturable absorbers (SAs) to achieve low phase noise mode-locked fiber lasers. Various properties of these wall-paper SAs, such as saturable intensity, optical absorption and degree of purity, are found to be key factors determining the performance of the ultrafast pulses. Reduced-noise femtosecond fiber lasers based on such carbon-based SAs are experimentally demonstrated, for which the phase noise has been reduced by more than 10 dB for SWNT SAs and 8 dB for GO SAs at 10 kHz. To the best of our knowledge, this is the first investigation on the relationship between different carbon material based SAs and the phase noise of mode-locked lasers. This work paves the way to generate high-quality low phase noise ultrashort pulses in passively mode-locked fiber lasers.
authors.affiliation: School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China.|Centre for Optoelectronics and Biophotonics, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Ave., 639798, Singapore.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Li
authors.affiliation: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Kan
authors.initials: K
authors.lastname: Wu
authors.affiliation: Department of Micro- and Nanosciences, Aalto University, PO Box 13500, FI-00076 Aalto, Finland.
authors.forename: Zhipei
authors.initials: Z
authors.lastname: Sun
authors.affiliation: Centre for Optoelectronics and Biophotonics, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Ave., 639798, Singapore.
authors.forename: Bo
authors.initials: B
authors.lastname: Meng
authors.affiliation: State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
authors.forename: Yonggang
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
authors.forename: Yishan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Centre for Optoelectronics and Biophotonics, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Ave., 639798, Singapore.
authors.forename: Xuechao
authors.initials: X
authors.lastname: Yu
authors.affiliation: Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075 Singapore.
authors.forename: Xia
authors.initials: X
authors.lastname: Yu
authors.affiliation: Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075 Singapore.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China.
authors.forename: Perry Ping
authors.initials: PP
authors.lastname: Shum
authors.affiliation: Centre for Optoelectronics and Biophotonics, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Ave., 639798, Singapore.
authors.forename: Qi Jie
authors.initials: QJ
authors.lastname: Wang