Frontier and Hot Topics of Pulsed Fiber Lasers via CiteSpace Scientometric Analysis: Passively Mode-Locked Fiber Lasers with Real Saturable Absorbers Based on Two-Dimensional Materials

Abstract

Pulsed fiber lasers, with high peak power and narrow pulse widths, have been proven to be an important tool for a variety of fields of application. In this work, frontier and hot topics in pulsed fiber lasers were analyzed with 11,064 articles. Benefitting from the scientometric analysis capabilities of CiteSpace, the analysis found that passively mode-locked fiber lasers with saturable absorbers (SAs) based on two-dimensional (2D) materials have become a hot research topic in the field of pulsed fiber lasers due to the advantages of self-starting operation, high stability, and good compatibility. The excellent nonlinear optical properties exhibited by 2D materials at nanometer-scale thicknesses have become a particularly popular research topic; the research has paved the way for exploring its wider applications. We summarize the performance of several typical 2D materials in ultrafast fiber lasers, such as graphene, topological insulators (TIs), transition metal dichalcogenides (TMDs), and black phosphorus (BP). Meanwhile, we review and analyze the direction of the development of 2D SAs for ultrafast fiber lasers.

Mode-locking pulse generation based on lead-free halide perovskite CsCu2I3 micro-rods with high stability

“…1–4 A saturable absorber (SA) is an important optical component to trigger pulsed operation. 5 Recently, the application of SAs based on novel low-dimensional materials for ultrafast pulse generation has been widely reported, such as graphene, 6–8 carbon nanotubes (CNTs), 9–11 topological insulators (TIs), 12–15 transition metal dichalcogenides (TMDs), 16–19 black phosphorus (BP), 20 and so on. 21–25 Most of them have unique optical and electrical properties.…”

Quasi-2D Mn3Si2Te6 Nanosheet for Ultrafast Photonics

“…Over the past decade, numerous studies have been conducted developing two-dimensional (2D) van der Waals (vdWs) materials SAs to meet pulsed laser generation requirements [ 18 ], such as graphene [ 19 , 20 ], transition metal dichalcogenides (TMDCs) [ 21 , 22 ], topological insulators (TIs) [ 23 ], black phosphorus (BP) [ 24 , 25 , 26 ], and MXenes [ 27 , 28 ]. These have been proven to have excellent optical properties and produce better laser pulse parameters.…”

Lead-free double-perovskite Cs4CuSb2Cl12 as an efficient saturable absorber for Q-switched mode-locking fiber lasers

“…4 Hence high-performance SAs for generating ultrafast pulsed lasers have been incessantly sought worldwide to meet the demands of photonic and optoelectronic applications. Under this context, new classes of SAs including two-dimensional (2D) graphene, 5,6 topological insulators, 7 transition-metal dichalcogenides, 8 MXenes, 9 black phosphorus 10 and III–V semiconductors have demonstrated great potential in Q-switched and/or mode-locked lasers. For instance, GaSb thin film was used in an erbium-doped fiber laser and realized a 917 fs pulse width at a fundamental frequency of 43.5 MHz.…”