Evaluation of the attenuation and the optical coupling between optical fibers and waveguides

被引:0
|
作者
Ghinoiu, S. [1 ]
Puscas, L. A. [2 ]
Rotaru, E. M. [2 ]
Galatus, R. [3 ]
Puscas, N. N. [1 ]
机构
[1] Univ Politehn Bucuresti, Dept Phys, Bucharest, Romania
[2] Tech Univ Cluj Napoca, Inst Electrotech, Cluj Napoca, Romania
[3] Tech Univ Cluj Napoca, Basis Elect Dept, Cluj Napoca, Romania
关键词
coupling; optical fibers; Ti : LiNbO3 optical waveguides; refractive-index profile; near field;
D O I
10.1117/12.742123
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
In this paper we report some experimental and theoretical results concerning the characterization of the coupling between optical fibers and optical waveguides using nondestructive methods. The optical transmission method was used for the measurement of the optical attenuation in graded index profile optical fiber (lambda =0.63 mu m) and the resonator method for Ti:LiNbO3 optical waveguides (lambda = 1.55 mu m). The refractive-index profiles of optical fibers characterized by a graded index profile and Ti:LiNbO3 optical waveguides has been determined for lambda = 1.55 mu m from near field intensity measurement using a standard optical fiber as receiver. The obtained results are in good agreement with other obtained by several authors and can be used for the design of optical fiber sensors and optoelectronic integrated circuits.
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页数:7
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