Characteristics of Y3Fe5O12 ceramic at mid-infrared wavelengths and its Faraday isolator application

被引：2
作者：
Jiang, Renjie [1 ,2 ]
Chen, Jie [1 ,3 ]
Tiand, Yanna [1 ,2 ,4 ]
Shen, Shiji [1 ,2 ]
Yang, Xuan [1 ,2 ]
Zhou, Shengming [5 ]
Liu, Jing [6 ]
He, Zhenxing [6 ]
Yu, Ting [5 ,6 ]
Wang, Zhengjuan [7 ]
He, Xiyun [7 ]
Wang, Jun [1 ,3 ,5 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Aerosp Laser Technol & Syst Dept, Shanghai 201800, Peoples R China
[2] Shanghai Tech Univ, Shanghai 201210, Peoples R China
[3] Chinese Acad Sci, Wangzhijiang Innovat Ctr Laser, Aerosp Laser Technol & Syst Dept, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Adv Laser & Optoelect Funct Mat Dept, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
[5] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[6] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai Key Lab All Solid State Laser & Appl Tech, Shanghai 201800, Peoples R China
[7] Chinese Acad Sci, Shanghai Inst Ceram, Ctr Transparent Ceram, Shanghai 201899, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2025年 / 181卷
基金：
上海市自然科学基金;
关键词：
Faraday isolators; Mid-infrared wavelengths; YIG ceramics; MAGNETO-OPTIC PROPERTIES; REFRACTIVE-INDEX; YIG CERAMICS; SILICON; ROTATION; CRYSTAL;
D O I：
10.1016/j.optlastec.2024.111829
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Compared to the commonly used 1 mu m wavelength Faraday isolators (FIs), the performance of existing mid-infrared FIs remains unsatisfactory due to the lack of suitable magneto-optic (MO) candidate materials. In this study, we described a novel mid-infrared FI based on Y3Fe5O12 (YIG) MO ceramics for the first time. The Faraday effects of YIG ceramics synthesized by hot-press sintering were tested and compared with those of commercial YIG single crystals and Bi-doped iron garnet (BIG) films. Faraday rotation angles of 114 deg/cm at 2.1 mu m and 60 deg/cm at 3.8 mu m have been demonstrated in YIG ceramics. The YIG ceramic-based FI exhibited an extinction ratio of 25.26 dB and an insertion loss of 1.01 dB at 2.1 mu m, while the YIG ceramic-based Faraday rotator showed an extinction ratio of 28.30 dB and an insertion loss of 1.17 dB at 3.8 mu m. Under high repetition rate pulsed laser radiation, surface damage was observed for both the YIG ceramic and the YIG crystal at similar laser power densities. Given its size scalability, further improvement in the optical quality of YIG ceramic is expected to provide a superior approach for realizing high power mid-infrared FIs.
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页数：7
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