AN OPTICAL WAVE-GUIDE BEND WITH ENHANCED CURVATURE AND THE OPTIMIZATION OF ITS STRUCTURE

被引：5

作者：

SANAGI, M

NAKAJIMA, M

机构：

[1] Department of Electrical and Electronic Engineering, Okayama University, Okayama, 700, 3-1-1, Tsushima-Naka

[2] Department of Electronics, Kyoto University Yoshida-Hommachi, Kyoto, 606, Sakyo-ku

来源：

FIBER AND INTEGRATED OPTICS | 1990年 / 9卷 / 04期

关键词：

D O I：

10.1080/01468039008202922

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have investigated a waveguide bend having enhanced curvature with reduced loss. The waveguide width is made wider toward the inner side of the bend. The numerical analysis, by means of the beam propagation method, showed that the loss of the proposed bend is lower than that of an abrupt bend or a smooth bend of constant curvature. For a typical waveguide, we have optimized the structure of the bend and achieved one order of loss reduction in comparison with an abrupt bend of the same angle.

引用

页码：329 / 345

页数：17

共 10 条

[1]

Granestrand P., Stoltz B., Thylen L., Bergvall K., Strictly Nonblocking 8 X 8 Integrated Optical Switch Matrix, Electron. Lett, 22, 15, pp. 816-818, (1986)

[2]

Toda H., Haruna M., Nishihara, “Optical Integrated Circuit for a Fiber Laser Doppler Velocimeter, J. Lightwave Echnol, LT-5, 7, pp. 901-905, (1987)

[3]

Ogusu K., Transmission Characteristics of Optical Waveguide Corners, Opt. Commun, 55, 3, pp. 149-153, (1985)

[4]

Korotky S.K., Marcatili E., Veselka J.J., Bosworth R.H., Greatly Reduced Losses for Small-Radius in Ti:LiNbO, Waveguides, Appl. Phys.Lett, 48, 2, pp. 92-94, (1986)

[5]

Schuppert B., Reduction of Bend Loss in Ti:LiNbO, Waveguides Through MgO Double Diffusion, Electron. Lett, 23, 15, pp. 797-798, (1987)

[6]

Neumann E.G., Ricter W., Sharp Bends With Low Losses in Dielectric Optical Waveguides, Appl. Opt, 22, 7, pp. 1016-1022, (1984)

[7]

Sanagi M., Nakajima M., A Method of Curvature Enhancement of Optical Waveguide Bends, Seventh International Conference, (1989)

[8]

Feit M.D., Fleck J.A., Light Propagation in Graded-Index Optical Fibers, Appl. Opt, 17, 24, pp. 3390-3398, (1978)

[9]

Van Roey J., Van Der Donk J., Lagasse P.E., “Beam-Propagation Method: Analysis and Assessment, J. Opt, 71, 7, pp. 803-810, (1981)

[10]

Kawakami S., Baba K., Field Distribution Near an Abrupt Bend in Single-Mode Waveguides: A Simple Model, Appl. Opt, 24, 21, pp. 3643-3647, (1985)

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