Design of Rare-Earth-Doped Microspheres

被引：15
作者：
Mescia, Luciano [1 ]
Prudenzano, Francesco [2 ]
De Sario, Marco [1 ]
Palmisano, Tommaso [2 ]
Ferrari, Maurizio [3 ]
Righini, Giancarlo C. [4 ]
机构：
[1] Politecn Bari, DEE, I-70125 Bari, Italy
[2] Politecn Bari, DIASS, I-70100 Taranto, Italy
[3] Inst Photon & Technol, CNR IFN, CSMFO Lab, I-38100 Trento, Italy
[4] Ist Fis Applicata, CNR IFAC, MDF Lab, I-50019 Sesto Fiorentino, Italy
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2010年 / 22卷 / 06期
关键词：
Active microsphere; finite-difference time-domain (FDTD) method; rare earth; rate equations; FDTD; RESONATORS; SYSTEM; LASER;
D O I：
10.1109/LPT.2009.2039932
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Two original computer codes for the design of rare-earth-doped dielectric microspheres have been ad hoc developed. The former code is based on a finite-difference time-domain algorithm, suitably extended to model the amplification of the whispering-gallery modes propagating into rare-earth-doped microspheres. It takes into account the wavelength dispersion of the microsphere refractive index and the polarization obtained via the density matrix model. The design of an Er(3+)-doped silica microsphere coupled with a tapered silica fiber is reported. The latter home-made computer code solves the rate equations and the power propagation equations in frequency domain. The results are in excellent agreement.
引用
收藏
页码：422 / 424
页数：3
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