Bulk α-alumina embedded tapered fiber as Q-switcher in an erbium-doped fiber laser

被引：2

作者：

Yusoff, Norita Mohd ^{[1
,2
]}

Chyi, Josephine Liew Ying ^{[1
,3
]}

Ng, Eng Khoon ^{[4
]}

Zain, Ahmad Rifqi Md ^{[5
]}

Alresheedi, Mohammed Thamer ^{[6
]}

Mayzan, Mohd Zul Hilmi ^{[7
]}

Mahdi, Mohd Adzir ^{[1
,8
]}

机构：

[1] Univ Putra Malaysia, Putra, Malaysia

[2] Univ Putra Malaysia, InnoHub Unit, inLAZER Dynam Sdn Bhd, Putra Sci Pk, Seri Kembangan, Selangor, Malaysia

[3] Univ Putra Malaysia, Fac Sci, Dept Phys, Seri Kembangan 43400, Selangor, Malaysia

[4] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England

[5] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelect IMEN, Bangi 43600, Selangor, Malaysia

[6] King Saud Univ, Coll Engn, Dept Elect Engn, POB 800, Riyadh 11421, Saudi Arabia

[7] Univ TunHussein Onn Malaysia, Fac Appl Sci & Technol, Ceram & Amorphous Grp CerAm, Pagoh Higher Educ Hub, Johor Baharu 84600, Malaysia

[8] Univ Putra Malaysia, Wireless & Photon Networks Res Ctr WiPNet, Seri Kembangan 43400, Selangor, Malaysia

来源：

PHYSICA SCRIPTA | 2024年 / 99卷 / 06期

关键词：

aluminum oxide; fiber laser; Q-switched; saturable absorber; SATURABLE ABSORBER;

D O I：

10.1088/1402-4896/ad447f

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present bulk alpha-alumina (Al2O3) in a polydimethylsiloxane matrix decorated tapered fiber as a Q-switcher for microsecond pulse generation. The integration of alpha-Al2O3-saturable absorber (SA) in an erbium-doped fiber laser yielded a Q-switched operating regime within 62.0-308.6 mW pump power. The shortest pulse width was 7 mu s, whereas the repetition rate was tunable from 19.17 to 43.24 kHz. This work reveals a substantial improvement over previously reported Al2O3-SA works with a recorded pulse energy of 150.32 nJ and an estimated damage threshold of beyond 6.75 GW cm(-2) incident intensity. Our findings suggest that alpha-Al2O3-SA has enormous potential as a next generation light-absorbing material for high-energy photonic devices.

引用

页数：10

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