Passively mode-locked thulium-holmium co-doped fiber laser using hybrid side polished fiber with MoWS2-rGO nanocomposite

被引：9

作者：

Ahmad, Harith ^{[1
]}

Hanafi, Ahmad Izzat Mohd ^{[1
]}

Ramli, Rizal ^{[1
]}

Reduan, Siti Aisyah ^{[1
]}

Yusoff, Norazriena ^{[1
]}

机构：

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

来源：

OPTICAL FIBER TECHNOLOGY | 2021年 / 62卷

关键词：

Mode-locking; Thulium-Holmium doped fiber; Nanocomposite; Saturable absorber; Side polished fiber; SATURABLE ABSORBER; HETEROSTRUCTURE; FABRICATION; GLASS; FILM;

D O I：

10.1016/j.yofte.2021.102468

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Passive mode-locking pulse generation in a Thulium-Holmium doped fiber laser (THDFL) with molybdenum tungsten disulfide-reduced graphene oxide (MoWS2-rGO) nanocomposite saturable absorber (SA) was demonstrated for operation in 2.0 mu m wavelength regions. Mode-locked pulse was achieved by the evanescent wave interaction with the MoWS2-rGO based SA embedded on a side polished fiber. The THDFL produces mode-locked pulses centered at 1908.6 nm with a repetition rate and pulse duration of 11.9 MHz and 1.5 ps, respectively. A high signal to noise ratio (SNR) of 48 dB as well as minimal power and wavelength fluctuations indicates the excellent stability of the mode-locking operation. To the best of our knowledge, it is the first demonstration of MoWS2-rGO used as a SA in the THDFL system. The proposed laser would benefit various domains, mainly medicine, for its operation in the eye-safe 2.0 mu m wavelength region.

引用

页数：8

共 49 条

[1] Molybdenum tungsten disulphide (MoWS2) as a saturable absorber for a passively Q-switched thulium/holmium-codoped fibre laser [J].