1 中国科学院西安光学精密机械研究所,瞬态光学与光子技术国家重点实验室,西安709
2 福建工程学院 信息科学与工程学院,福州350118
本文综述了基于渐变折射率多模光纤可饱和吸收体的全光纤锁模激光超短脉冲与束缚态孤子产生机理与技术研究现状.采用这种新型全光纤结构的锁模调制器件,光纤激光器可输出传统孤子的单脉冲能量达nJ量级,同时可实现时空锁模运转.渐变折射率多模光纤作为全光纤非线性可饱和吸收体在激光器中具有重要的研究意义和广泛的应用,为更高能量超短脉冲的产生提供了一条重要技术途径.
Fiber laser Mode locking Graded-index multimode fiber Saturable absorber Nonlinear multimode interference 光纤激光器 锁模 渐变折射率多模光纤 可饱和吸收体 非线性多模干涉
Author Affiliations
Abstract
1 State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, China
Graphene oxide carboxylic acid (COOH), a novel two-dimensional (2D) layered material with its unique optical and electronic properties, is discovered to exhibit the saturation of optical absorption under laser illumination. Applying the liquid-phase exfoliation method, we prepare graphene oxide-COOH dispersions with deionized water and fabricate graphene oxide-COOH polyvinyl alcohol polymer composite film. We further obtain stable Q-switching pulse and mode-locked laser operation with a 22.7 MHz repetition rate and a 1.5 ps pulse duration by incorporating the graphene oxide-COOH-based saturable absorbers into the all-fiber erbium-doped fiber laser cavity. The experimental results show that the proposed graphene oxide-COOH material can act as an effective absorber for pulsed fiber lasers, which demonstrate potential applications in the area of ultrafast optics.
140.4050 Mode-locked lasers 140.3510 Lasers, fiber 140.3540 Lasers, Q-switched Chinese Optics Letters
2017, 15(10): 101402
中国科学院西安光学精密机械研究所, 瞬态光学与光子技术国家重点实验室, 陕西 西安 710119
中国激光
2011, 38(11): 1107002