Gold nanoparticles film for Q-switched pulse generation in thulium doped fiber laser cavity

作     者：Ahmad H.A.Rosol Afiq A.A.Jafry Norrima Mokhtar Moh Yasin Sulaiman Wadi Harun Ahmad H.A.Rosol;Afiq A.A.Jafry;Norrima Mokhtar;Moh Yasin;Sulaiman Wadi Harun

作者机构：Department of Electrical EngineeringUniversity of MalayaKuala Lumpur 50603Malaysia Department of PhysicsFaculty of ScienceUniversiti Teknologi MalaysiaSkudai 81310Malaysia Department of PhysicsFaculty of Science and TechnologyAirlangga UniversitySurabayaIndonesia 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2021年第17卷第8期

页      面：449-453页

核心收录：

学科分类：0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 070205[理学-凝聚态物理] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the University of Malaya(No.MLOO1-2017B) 

主　　题：switched fiber pump 

摘      要：Passively Q-switched thulium doped fiber laser(TDFL)has been successfully demonstrated using gold nanoparticles(GNPs),which were embedded into polyvinyl alcohol as saturable absorber(SA).The stable self-starting Q-switched laser was generated to operate at 1891 nm when a tiny piece of the prepared film was slot in between two fiber ferrules and incorporated into the laser *** repetition rate can be adjusted from 48.54 kHz to 49.64 kHz while the pulse width decreased from 3.52μs to 2.38μs with the increase of 1550 nm pump power from 840 m W to 930 m *** corresponding pump power output power linearly increased from 3.62 m W to 6.3 m W with a slope efficiency of 2.53%.The maximum peak power and pulse energy were recorded at about 39 m W and 0.12μJ,respectively at pump power of 930 m *** Q-switching operation was caused by the surface plasmon resonance absorption of GNPs.