title: High-quality, large-area monolayer graphene for efficient bulk laser mode-locking near 1.25 μm.
abstract: High-quality monolayer graphene as large as 1.2×1.2 cm2was synthesized by chemical vapor deposition and used as a transmitting saturable absorber for efficient passive mode-locking of a femtosecond bulk solid-state laser. The monolayer graphene mode-locked Cr:forsterite laser was tunable around 1.25 μm and delivered sub-100 fs pulses with output powers up to 230 mW. The nonlinear optical characteristics of the monolayer graphene saturable absorber and the mode-locked operation were then compared with the case of the bilayer graphene saturable absorber.
authors: Department of Physics & Division of Energy Systems Research, Ajou University, Suwon, South Korea.
authors: Won Bae
authors: WB
authors: Cho
authors: Jun Wan
authors: JW
authors: Kim
authors: Hwang Woon
authors: HW
authors: Lee
authors: Sukang
authors: S
authors: Bae
authors: Byung Hee
authors: BH
authors: Hong
authors: Sun Young
authors: SY
authors: Choi
authors: In Hyung
authors: IH
authors: Baek
authors: Kihong
authors: K
authors: Kim
authors: Dong-Il
authors: DI
authors: Yeom
authors: Fabian
authors: F
authors: Rotermund