title: Vector rectangular-shape laser based on reduced graphene oxide interacting with a long fiber taper.
abstract: A vector dual-wavelength rectangular-shape laser (RSL) based on a long fiber taper deposited with reduced graphene oxide is proposed, where nonlinearity is enhanced due to a large evanescent-field-interacting length and strong field confinement of an 8 mm fiber taper with a waist diameter of 4 μm. Graphene flakes are deposited uniformly on the taper waist with light pressure effect, so this structure guarantees both excellent saturable absorption and high nonlinearity. The RSL with a repetition rate of 7.9 MHz shows fast polarization switching in two orthogonal polarization directions, and temporal and spectral characteristics are investigated.
authors.forename: Lei
authors.initials: L
authors.lastname: Gao
authors.forename: Tao
authors.initials: T
authors.lastname: Zhu
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Jing
authors.initials: J
authors.lastname: Zeng
mesh_terms: D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D006108:Graphite / Q000737:chemistry*; D007834:Lasers; D008904:Miniaturization; D010087:Oxides / Q000737:chemistry*
chemical_list: D010087:Oxides; D006108:Graphite