A solid-state optical filter at 1530 nm based on Voigt anomalous dispersion effect in rare earth ion-doped crystal
Kailun Wen,
Xuanyao Bai,
Enming Zhao,
Shuangqiang Liu,
Le Luo
Affiliations
Kailun Wen
School of Physics and Astronomy, Sun Yat-Sen University, 519082, Zhuhai, Guangdong, China
Xuanyao Bai
School of Physics and Astronomy, Sun Yat-Sen University, 519082, Zhuhai, Guangdong, China
Enming Zhao
School of Engineering, Dali University, 671000, Dali, Yunnan, China
Shuangqiang Liu
School of Physics and Astronomy, Sun Yat-Sen University, 519082, Zhuhai, Guangdong, China; Corresponding author.
Le Luo
School of Physics and Astronomy, Sun Yat-Sen University, 519082, Zhuhai, Guangdong, China; Shenzhen Research Institute of Sun Yat-Sen University, 518087, Nanshan, Shenzhen, China; Guangdong Provincial Key Laboratory of Quantum Metrology and Sensing, 519082, Zhuhai, Guangdong, China; Corresponding author. Physics and Astronomy, Sun Yat-Sen University, 519082, Zhuhai, Guangdong, China.
This paper proposes an ultra-narrow band solid state optical filter with Voigt anomalous dispersion at 1530 nm based on Er3+: LiYF4, sets a theoretical model for its realization of ultra-narrow band optical filtering, and performs simulations based on the model. The results show that the maxi-mum transmission of the filter is close to 80%, while the line-width is only in the order of 100 MHz, while its transmission peak can be tuned flexibly by adjusting the magnetic field. This filter has a natural advantage in space laser communications, which is another promising ultra-narrow band optical filter.
