Q-switched giant pulsed erbium-doped all-fiber laser with V_(2)ZnC MAX phase saturable absorber  

作　　者：Kawther M Musthafa Azura Hamzah Ooi Wei Ling Ahmad Haziq Aiman Rosol Norliza Mohamed Sulaiman Wadi Harun 

机构地区：[1]Malaysia-Japan International Institute of Technology,Universiti Teknologi Malaysia,Kuala Lumpur 54100,Malaysia [2]Razak Faculty of Technology and Informatics,Universiti Teknologi Malaysia,Kuala Lumpur 54100,Malaysia [3]Department of Electrical Engineering,University of Malaya,Kuala Lumpur 50603,Malaysia1

出　　处：《Optoelectronics Letters》2024年第6期321-329,共9页光电子快报（英文版）

基　　金：supported by the Ministry of Higher under Fundamental Research Grant Scheme(No.FRGS/1/2020/TK0/UTM/02/46);Nippon Sheet Glass Grant(No.R.K130000.7343.4B818)。

摘　　要：MXenes,drawn from MAX phases,are special two-dimensional substances with numerous advantages in nonlinear optics,specifically in giant and ultrashort pulsed-laser applications.Ti_(3)C_(2)T_(x)and Ti_(2)CT_(x)nanosheets however rapidly deteriorate under ambient conditions,limiting their applications.This paper demonstrates how excellent modulation depth of one of the MAX phase compounds vanadium zinc carbide(V_2ZnC)makes it a brilliant saturable absorber(SA)in passively Q-switched all-fiber pulsed lasers,integrated such that a 16.73-μm V_(2)ZnC-polyvinyl alcohol(PVA)thin film acts as SA in the laser.Saturable and non-saturable absorptions were found to be 13.2%and 10.47%,while saturation optical intensity and modulation depth were 6.25 k W/cm^(2)and 12.43%,respectively,illustrating the optical nonlinearity.The superiority of MAX-PVA,fabricated in four distinct ratios,was demonstrated by the fact that it self-starts a giant pulsed laser at pump power as low as 22.5 mW and firmly accomplished 120.6 kHz repetition rate with a pulse width of 2.08μs.It is a fine SA for the use of pulsed-laser production using all-fiber laser due to fabrication simplicity and great optical,thermophysical,and mechanical qualities.

关 键 词：MAX Q-switched giant pulsed erbium-doped all-fiber laser with V_(2)ZnC MAX phase saturable absorber 

分 类 号：TN248[电子电信—物理电子学]