Nonreciprocal phase shift of TE modes induced by a compensation wall in a magneto-optic rib waveguide

被引：16

作者：

Wilkens, L ^{[1
]}

Träger, D

Dötsch, H

Popkov, AF

Alekseev, AM

机构：

[1] Univ Osnabruck, Dept Phys, D-49069 Osnabruck, Germany

[2] Res Inst Phys Problems, NT MDT, Moscow 103460, Russia

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 26期

关键词：

D O I：

10.1063/1.1428633

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Garnet films of composition (Gd, Bi)(3)(Fe, Ga)(5)O-12 are grown by liquid-phase epitaxy on (111) oriented substrates of gadolinium gallium garnet. The films are close to compensation. Using laser annealing straight vertical compensation walls (CW) are generated. Monomode rib waveguides are fabricated by ion beam etching so that a CW is located close to a rib center. The CW induces a nonreciprocal phase shift of the TE0 mode. The dependence of this phase shift on the position of the CW within the rib is calculated. Experimentally a phase shift of 0.7 cm(-1) at 1.3 mum wavelength is observed. The deviation from the theoretical value is discussed. Such waveguides are essential to realize polarization-independent optical isolators. (C) 2001 American Institute of Physics.

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页码：4292 / 4294

页数：3

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