Q-switched fiber laser based on CdS quantum dots as a saturable absorber

被引：27

作者：

Radzi, N. M. ^{[1
]}

Latif, A. A. ^{[1
]}

Ismail, M. F. ^{[2
]}

Liew, J. Y. C. ^{[1
,3
]}

Wang, E. ^{[1
]}

Lee, H. K. ^{[1
]}

Tamcheck, N. ^{[1
]}

Awang, N. A. ^{[4
]}

Ahmad, F. ^{[5
]}

Halimah, M. K. ^{[1
]}

Ahmad, H. ^{[2
]}

机构：

[1] Univ Putra Malaysia, Fac Sci, Dept Phys, Serdang 43400, Selangor, Malaysia

[2] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia

[3] Univ Putra Malaysia, Inst Adv Technol, Serdang 43400, Selangor, Malaysia

[4] Univ Tun Hussein Onn Malaysia, Fac Appl Sci & Technol, Dept Phys & Chem, Opt Fiber Laser Technol OpFLAT Focus Grp, Pagoh 84600, Johor, Malaysia

[5] Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia

来源：

RESULTS IN PHYSICS | 2020年 / 16卷

关键词：

GENERATION; GRAPHENE; SELENIDE; PULSES;

D O I：

10.1016/j.rinp.2020.103123

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, a Q-switched fiber laser is demonstrated using quantum dots (QDs) cadmium sulfide (CdS) as a saturable absorber (SA) in an erbium-doped fiber laser (EDFL) system. The QD CdS is synthesized via the microwave hydrothermal assisted method and embedded into polyvinyl alcohol (PVA). The QD CdS/PVA matrix film is sandwiched in between two fiber ferrules by a fiber adapter. The generation of Q-switched fiber laser having a repetition rate, a pulse width, and a peak-to-peak pulse duration of 75.19 kHz, 1.27 mu s, and 13.32 mu s, respectively. The maximum output power of 3.82 mW and maximum pulse energy of 50.8 nJ are obtained at the maximum pump power of 145.9 mW. The proposed design may add to the alternative material of Q-switched fiber laser generation, which gives a high stability output performance by using quantum dots material as a saturable absorber.

引用

页数：7

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