High-power ultrafast laser based on PbS quantum dots-polystyrene composite films

被引：0

作者：

Yun, Ling ^{[1
,2
]}

Zhou, Jie ^{[1
,2
]}

Ye, Fan ^{[1
,2
]}

Chen, Guotao ^{[1
,2
]}

Zhang, Zuxing ^{[1
,2
]}

Zheng, Ruilin ^{[1
,2
,3
,4
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Adv Photon Technol Lab, Nanjing 210023, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Coll Flexible Elect, Nanjing 210023, Peoples R China

[3] Nanjing Univ Posts & Telecommun, Sch Sci, Nanjing 210023, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2025年 / 183卷

基金：

中国国家自然科学基金;

关键词：

PbS quantum dots; Polystyrene; Saturable absorbers; High power; PULSE GENERATION; MODE-LOCKING;

D O I：

10.1016/j.optlastec.2024.112398

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Mode-locked fiber lasers are renowned for their ability to generate ultrafast pulses. However, their performance in high-power applications is often constrained by the limitations of traditional saturable absorbers (SAs). In this study, we present the successful integration of PbS quantum dots (QDs)-polystyrene (PS) composite film as an SA in an erbium-doped fiber laser (EDFL) system, achieving stable high-power mode-locking operation. Experimental results reveal that the PbS QDs-PS film possesses a high optical damage threshold exceeding 6.37 mJ/ cm2. The laser system produces ultrafast pulses with a duration of 1.12 ps at a repetition rate of 15 MHz, delivering an output power of 112 mW, the highest reported for QDs-based mode-locking in EDFLs. These findings underscore the significant potential of PbS QDs-PS-based SA for advancing high-power performance in ultrafast photonic systems.

引用

页数：6

共 44 条

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