Q-switched ytterbium-doped fiber laser with topological insulator-based saturable absorber

被引：21

作者：

Al-Masoodi, Ahmed H. H. ^{[1
]}

Ahmad, Fauzan ^{[2
]}

Ahmed, Mahmoud H. M. ^{[1
]}

Arof, Hamzah ^{[1
]}

Harun, Sulaiman W. ^{[1
]}

机构：

[1] Univ Malaya, Dept Elect Engn, Fac Engn, Kuala Lumpur, Malaysia

[2] Univ Teknol Malaysia, Dept Elect Syst Engn, Malaysian Japan Int Inst Technol, Kuala Lumpur, Malaysia

来源：

OPTICAL ENGINEERING | 2017年 / 56卷 / 05期

关键词：

ytterbium-doped fiber laser; Q-switching; topological insulator; bismuth (III) selenide saturable absorber; bismuth (III) telluride; POLYETHYLENE OXIDE-FILM; SINGLE;

D O I：

10.1117/1.OE.56.5.056103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A stable passive Q-switched ytterbium-doped fiber laser (YDFL) operating at 1057.4 and 1044.5 nm is demonstrated using two types of topological insulator-based saturable absorbers (SAs): bismuth (III) selenide (Bi2Se3) and bismuth (III) telluride (Bi2Te3). These materials are embedded in polyvinyl alcohol film and incorporated in the YDFL cavity. Using Bi2Se3 SA, the YDFL obtains a stable train of pulses with a repetition rate that is tunable from 48.83 to 102 kHz. Meanwhile, the corresponding pulse width decreases from 8.9 to 3.48 mu s as the pump power increases from 67.6 to 88.3 mW. For the Bi2Te3-based Q-switched YDFL, the repetition rate grows from 43.25 to 93.63 kHz and the pulse width shrinks from 5.65 to 2.01 mu s as the 980-nm pump power rises from 72.8 to 98.4 mW. The maximum pulse energy is obtained with the Bi2Te3 SA at 29.95 nJ. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：5

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