Mode-locked fiber laser of 3.5 µm using a single-walled carbon nanotube saturable absorber mirror
Jincheng Wei, Peng Li, Linpeng Yu, Shuangchen Ruan, Keyi Li, Peiguang Yan, Jiachen Wang, Jinzhang Wang, Chunyu Guo, Wenjun Liu, Ping Hua, Qitao Lü
Abstract
We report on a mid-infrared fiber laser that uses a single-walled carbon nanotube saturable absorber mirror to realize the mode-locking operation. The laser generates 3.5 m ultra-short pulses from an erbium-doped fluoride fiber by utilizing a dual-wavelength pumping scheme. Stable mode-locking is achieved at the 3.5 m band with a repetition rate of 25.2 MHz. The maximum average power acquired from the laser in the mode-locking regime is 25 mW. The experimental results indicate that the carbon nanotube is an effective saturable absorber for mode-locking in the mid-infrared spectral region.
Topics & Concepts
Saturable absorptionMaterials scienceFiber laserOpticsCarbon nanotubeLaserMode-lockingFiberOptoelectronicsWavelengthNanotechnologyPhysicsComposite materialAdvanced Fiber Laser TechnologiesSolid State Laser TechnologiesLaser-Matter Interactions and Applications