GRAPHENE BASED SOLITON MODE-LOCKED ERBIUM DOPED FIBERLASER FOR SUPERCONTINUUM GENERATION

Digest Journal of Nanomaterials and Biostructures

Y. I. Hammadi¹ 

关键词: Fiber laser;    Graphene saturable absorber;    Mode locking;    Supercontinuum;    generation;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

In this paper, we demonstrate a highly stable Soliton mode-locked Erbium-doped fiberlaser (EDFL) based on graphene saturable absorber (SA). Graphene nanopowder is firstconverted into solution and then mixed with polyvinyl alcohol (PVA) to form a thin film.The fabricated thin film has a modulation depth and saturation intensity of 6.1 %, and 21MW/cm2, respectively. The proposed soliton mode locked operate with a centralwavelength of 1562 nm and 3-dB bandwidth of 1.46 nm. Its repetition rate and pulse widthare 1.85 MHz and 2.24 ps, respectively. At the maximum output power of 1.6 mW, thepulse energy and peak power are approximately 0.86 nJ and 363 W, respectively. Thesame generated mode locked pulse is observed after being sent into a 10 km single modefiber (SMF) which conform its high stability that is required for optical communicationapplication. Supercontinuum light is also generated using the proposed soliton modelocked with a range starting from 1300 nm to 1700 nm. The proposed supercontinuumlaser can be seen as a promising frequency comb source for frequency metrologyapplications.

【 授权许可】

Unknown