Characterization of laser waveguides in Nd:CNGG crystals formed by low fluence carbon ion implantation

被引：10

作者：

Wang, Liang-Ling ^{[1
]}

Yu, Yong-Gui ^{[2
]}

机构：

[1] Jining Univ, Dept Phys, Qufu 273155, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2010年 / 256卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Waveguide; Ion implantation; Nd:CNGG crystal; X-CUT LINBO3; REFRACTIVE-INDEX; LITHIUM-NIOBATE; PLANAR; DEPOSITION; KTIOPO4; GLASS;

D O I：

10.1016/j.apsusc.2009.11.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on Nd:CNGG active planar waveguides produced by 6.0 MeV carbon ion implantation at fluence from 1 x 10(14) ions/cm(2) to 8 x 10(14) ions/cm(2). The refractive index profiles, which were reconstructed according to the measured dark mode spectroscopy, showed that the refractive indices had negative changes in the surface region, forming typical barrier waveguide. The width of waveguide structure induced by carbon ion implantation is similar to 3.8 mm. The typical barrier-shaped distribution may be mainly due to the nuclear energy deposition of the incident ions into the substrate. By performing a modal analysis on the observed TE modes, it was found that the TE(0) and TE(1) modes can be well-confined inside the waveguide. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2616 / 2619

页数：4

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