A practical topological insulator saturable absorber for mode-locked fiber laser

被引：144

作者：

Yan, Peiguang ^{[1
]}

Lin, Rongyong ^{[1
]}

Ruan, Shuangchen ^{[1
]}

Liu, Aijiang ^{[1
]}

Chen, Hao ^{[1
]}

Zheng, Yuequn ^{[1
]}

Chen, Sifan ^{[1
]}

Guo, Chunyu ^{[1
]}

Hu, Juguang ^{[2
]}

机构：

[1] Shenzhen Univ, Coll Optoelect Engn, Shenzhen Key Lab Laser Engn, Shenzhen 518060, Peoples R China

[2] Shenzhen Univ, Coll Phys Sci & Technol, Shenzhen 518060, Guangdong, Peoples R China

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

关键词：

PULSE GENERATION; GRAPHENE; FEMTOSECOND; NANOTUBE; EXFOLIATION; LOCKING;

D O I：

10.1038/srep08690

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A novel saturable absorber (SA) was fabricated by coating the topological insulator (TI) film on microfiber using pulsed laser deposition (PLD) method. The TISA device had an insertion loss of similar to 1.25 dB, a saturable intensity of 26.7 MW/cm(2), a modulation depth of similar to 5.7%, and a nonsaturable loss of 20.5%. Upon employing this SA device, we established a passively mode-locked EDFL and achieved nearly free-chirped soliton pulse with 286 fs of pulse duration and >73 dB of signal to noise ratio (SNR). This result clearly evidences that the PLD is an effective scheme for practical SA device fabrication.

引用

页数：5

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