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

被引：0
|
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.
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页数：10
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