Nanosecond-pulse fiber laser mode-locked with polyaniline saturable absorber

被引：4
|
作者：
Ahmad A.D. [1 ]
Mokhtar N. [1 ]
Rosol A.H.A. [1 ]
Arof H. [1 ]
Apsari R. [2 ]
Harun S.W. [1 ,2 ]
机构：
[1] Photonics Engineering Laboratory, Department of Electrical Engineering, University of Malaya, Kuala Lumpur
[2] Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya
来源：
Optik | 2024年 / 301卷
关键词：
Fiber laser; Mode-locking; Polyaniline; Saturable absorber;
D O I：
10.1016/j.ijleo.2024.171692
中图分类号：
学科分类号：
摘要：
We prove that mode-locking of an Erbium-doped fiber laser (EDFL) with a Polyaniline (PANI) saturable absorber (SA) can produce nanosecond pulses at repetition rate of 962 kHz in the elongated ring cavity. The SA is fabricated by embedding a PANI into PVA. The conducting polymer-based SA exhibits a good optical nonlinear property with a modulation depth of 2.3%. The laser operated in nanosecond regime due to the saturable absorption of the PANI PVA SA instead of nonlinear polarization evolution. A clean single pulse is observed, and the pulse train exhibits low jitter. It operated at 1530.8 nm with a pulse duration of 228 ns and a maximum pulse energy of 3.1 nJ. Due to its extremely large chirp property, the proposed laser is suited for application in the chirped-pulse amplification systems. © 2024 Elsevier GmbH
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