Titanium carbide MXene for generating Q‐switched pulses in erbium‐doped fiber laser cavity

In this paper, a new thin‐film saturable absorber (SA) that belongs to the MXene family is used to generate Q‐switched laser pulses. In constructing the SA, titanium carbide (Ti3C2Tx) powder obtained through a selective etching process is dispersed in polyvinyl alcohol solution before the mixture is...

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Bibliographic Details
Published in:Microwave and optical technology letters 2021-11, Vol.63 (11), p.2893-2897
Main Authors: Sahib, M. A. A. B., Zulkipli, N. F., Rosol, Ahmad Haziq Aiman, Yasin, Moh, Harun, Sulaiman Wadi
Format: Article
Language:English
Subjects:
Doped fibers
Erbium
Fiber lasers
Lasers
MXene
MXenes
Polyvinyl alcohol
Pulse duration
Q switched lasers
Q‐switching
saturable absorber
Thin films
Ti3C2Tx
Titanium carbide
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Summary:In this paper, a new thin‐film saturable absorber (SA) that belongs to the MXene family is used to generate Q‐switched laser pulses. In constructing the SA, titanium carbide (Ti3C2Tx) powder obtained through a selective etching process is dispersed in polyvinyl alcohol solution before the mixture is dried to form a thin film. A small piece of the film is placed between two fiber ferrules to form a SA device and added to a laser cavity of an erbium‐doped fiber laser to produce Q‐switched pulses in the region of 1561 nm. The repetition rate of the pulses can be varied between 45.25 and 65.59 kHz with the corresponding pulse width of 5.04–3.11 μs when the pump power is increased from 29.8 to 66.3 mW. At the maximum output power of 8.17 mW, the highest pulse energy of 125 nJ is obtained.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.32952