Ultrashort pulse generation using tantalum aluminum carbide as a pulse modulator
Document Type
Article
Publication Date
1-1-2025
Abstract
This paper investigates the use of tantalum aluminum carbide (Ta2AlC) as a passive pulse modulator for generating ultrafast mode-locked pulses in an erbium-doped fiber (EDF) laser cavity. The Ta2AlC modulator was prepared via an embedding method using polyvinyl alcohol as the host matrix, exhibiting a saturable absorption of 6.9% with a saturable intensity of 100 MW/cm2. When integrated into a long EDF laser cavity, the modulator enabled the generation of a picosecond soliton pulse train. Operating within a pump range of 95.2 to 210.62 mW, the self-starting mode-locked EDF laser achieved a central wavelength of 1561.7 nm, a repetition rate of 1.866 MHz, and a pulse width of 3.80 ps. These findings demonstrate that Ta2AlC is an effective passive modulator for ultrafast laser generation through mode locking. (c) 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
Divisions
sch_ecs,PHYSICS
Publication Title
Applied Optics
Volume
64
Issue
2
Publisher
Optical Society of America
Publisher Location
2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA