MgO在Ti:LiNbO/sub - 3/波导中的扩散控制

2002 Conference on Optoelectronic and Microelectronic Materials and Devices. COMMAD 2002. Proceedings (Cat. No.02EX601) Pub Date : 2002-12-11 DOI:10.1109/COMMAD.2002.1237313

Y. Jayantha, A. Mitchell, M. Austin

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引用次数: 0

摘要

本文研究了通过适当控制扩散前和扩散后参数，将氧化镁(MgO)与Ti:LiNbO/sub 3/相结合，作为控制光模尺寸的一种方法。实验比较了预图像化Ti与不同图像化MgO膜在LiNbO/ sub3 /上的共扩散。该方法已应用于直波导和直耦合器的研究。在1.55 /spl mu/m波长下，采用近场模式尺寸和损耗测量方法对波导进行了光学表征。已经观察到引入MgO后相邻波导间模间耦合的减少。

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Optical mode size control by MgO indiffusion in Ti:LiNbO/sub 3/ waveguides

In this paper, the use of magnesium oxide (MgO) indiffusion in combination with Ti:LiNbO/sub 3/ through appropriate control of pre- and post-diffusion parameters is investigated as a way of controlling optical mode size. The co-diffusion of pre-patterned Ti with various patterned MgO films on LiNbO/sub 3/ has been compared experimentally. This method has been applied to study straight waveguides and couplers. The waveguides were optically characterized by near-field mode size and loss measurements methods at a wavelength of 1.55 /spl mu/m. Reduction of inter-mode coupling between adjacent waveguides with the introduction of MgO has been observed.

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2002 Conference on Optoelectronic and Microelectronic Materials and Devices. COMMAD 2002. Proceedings (Cat. No.02EX601)

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