Temporal and amplitude modulation at C-band region using Bi2Te3-based optical modulator

被引：5

作者：

Ahmad, Harith ^{[1
,2
,3
]}

Yusoff, Norazriena ^{[1
]}

San Lim, Hwee ^{[4
]}

Jafri, Mohd Zubir Mat ^{[4
]}

Zulkifli, Mohd Zamani ^{[5
]}

Tiu, Zian Cheak ^{[6
]}

机构：

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

[2] Univ Malaya, Dept Phys, Kuala Lumpur 50603, Malaysia

[3] Airlangga Univ, Fac Sci & Technol, Dept Phys, Surabaya, Indonesia

[4] Univ Sains Malaysia, Sch Phys, George Town, Malaysia

[5] Univ Islam Antarabangsa Malaysia, Kulliyyah Sci, Kuantan, Malaysia

[6] Persialran Kewajipan USJ1, Fac Engn, SEGi Coll Subang Jaya, Uep Subang Jaya, Selangor, Malaysia

来源：

JOURNAL OF MODERN OPTICS | 2020年 / 67卷 / 07期

关键词：

Topological insulator; Q-switched; fibre laser; pulse modulator; amplitude modulator; C-band region; TOPOLOGICAL INSULATOR; FIBER LASER; GRAPHENE;

D O I：

10.1080/09500340.2020.1760955

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A temporal and amplitude modulator based on few-layers bismuth telluride (Bi2Te3) flakes is demonstrated for C-band operation. The few-layers thick Bi2Te3 flakes are prepared by mechanically exfoliating a Bi2Te3 crystal. As an optical pulse modulator, the Bi2Te3-based saturable absorber (SA) provides stable Q-switching operation at 1561.1 nm with a maximum repetition rate of 70.92 kHz and minimum pulse width of 2.38 mu s. As an optical amplitude modulator, two linear regions at different pump power ranges are obtained in the regression line of the peak intensity. The first linear region covers a pump power range from 0.0 to 80.32 mW and corresponds to a modulation efficiency of 0.05 dB/mW, while the second linear region covers a pump power range of 80.32-98.64 mW with a modulation efficiency of 0.81 dB/mW.

引用

页码：638 / 646

页数：9

共 35 条

[1] Application of MoWS2-rGO/PVA thin film as all-fiber pulse and amplitude modulators in the O-band region [J].