Passively mode-locked erbium-doped fiber laser based on a nanodiamond saturable absorber

被引：10

作者：

Shakaty, Aseel A. ^{[1
]}

Hmood, Jassim K. ^{[1
]}

Mahdi, Bushra R. ^{[2
]}

Harun, Sulaiman W. ^{[3
]}

机构：

[1] Univ Technol Baghdad, Laser & Optoelect Engn Dept, Baghdad 10066, Iraq

[2] Minist Sci & Technol, Mat Res Ctr, Baghdad, Iraq

[3] Univ Malaya, Fac Engn, Kuala Lumpur 50603, Malaysia

来源：

APPLIED OPTICS | 2022年 / 61卷 / 14期

关键词：

PULSE GENERATION; LOCKING; ABSORPTION;

D O I：

10.1364/AO.453751

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we propose nanodiamond (ND) material as a saturable absorber (SA) to generate short pulses from a mode-locked erbium-doped fiber laser (EDFL). The ND-SA is fabricated by the drop-casting method using polyvinyledenedifluoride-trifluoroethylene as a host polymer and methyl ethel ketone as a solvent liquid. The SA, which possesses 20% ND concentration, has a 5.46% modulation depth with 2000 MW/cm(2) saturation intensity. Sequentially, the performance of the EDFL is investigated after integrating an ND-SA within the laser ring. The results reveal that the presented ND-SAs produce stable ultrashort laser pulses. Moreover, the fabricated ND film is a promising solid film for many photonic schemes. The proposed mode-locked EDFL-based ND-SA starts a mode-locking operation at a pumped power of 116 mW. The generated mode-locked pulses have a pulse duration of 0.84 ps, a repetition rate of 1.93 MHz, and a power of 0.517 mW, at a pumped power of 187 mW. Finally, to the best of our knowledge, this is the first time that the ND-SA has been used as a mode locker within the EDFL as a thin film and with the suggested fabrication method. (C) 2022 Optica Publishing Group

引用

页码：4047 / 4054

页数：8

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