Nanosecond pulse and dual-wavelength Q-switched 1.5 μm fiber laser using MAX phase Cr_(2)TiAlC_(2) saturable absorber

作     者：Ahmed Shakir AL-HITI Hiba HASSAN Ahmed Shakir AL-HITI;Hiba HASSAN

作者机构：Department of Electrical EngineeringFaculty of EngineeringUniversity of AnbarAnbar 31001Iraq Department of Laser and Optoelectronics EngineeringUniversity of Technology-IraqBaghdadIraq 

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

年 卷 期：2025年第21卷第1期

页      面：7-12页

核心收录：

学科分类：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）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

主　　题：switched pulse fiber 

摘      要：We demonstrated a new type of MAX phase material,chromium titanium aluminum carbide(Cr_(2)TiAlC_(2)) polymer film,to generate a passively Q-switched erbium-doped fiber laser(EDFL).The film thickness was measured to be around 45 μm,which was fabricated using the embedding method with polyvinyl alcohol(PVA) polymer as *** saturable absorber(SA) film demonstrates a dual-wavelength passively Q-switched EDFL which operates at 1 531 nm and 1 560.19 nm,*** Q-switching pulse duration could be varied from 2.46 μs to 770 ns,while the repetition rate varied from 92.76 kHz to 106.6 kHz with an increasing input pumping range from 154 mW to 300 *** maximum output power and pulse energy of 15.05 mW and 141.18 nJ were obtained at the maximum input power of 300 mW,respectively.