磁光(Cd,Mn)Te波导的热退火，用于更宽的光隔离器工作波长范围

INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005. Pub Date : 2005-10-17 DOI:10.1109/INTMAG.2005.1464266

M. Debnath, V. Zayets, K. Ando

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引用次数: 0

摘要

采用分子束外延法(MBE)在300/spl℃的温度下生长若干层Cd/sub - 1-x/Mn/sub x/Te (x = 0.225)层的渐变折射率(x = 0.225 ~ 0.26)核心波导，并在400/spl℃~ 450/spl℃的不同温度下在MBE腔中退火5 min。生长后退火使波导的完全模式转换比的波长范围更宽(710 nm ~ 735 nm)。研究了退火波导的低光传播损耗、高磁光优值和隔离效应。实验结果证明了(Cd,Mn)Te波导作为实用波导光隔离器的可行性。

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Thermal annealing of magneto-optical (Cd,Mn)Te waveguide for wider operation wavelength range of optical isolator

Several Cd/sub 1-x/Mn/sub x/Te (x = 0.225) core waveguides with graded-refractive-index (x = 0.225 - 0.26) layers are grown at 300/spl deg/C by molecular beam epitaxy (MBE) and annealed in the MBE chamber at different temperatures between 400/spl deg/C and 450/spl deg/C for 5 min. The post-growth annealing results in a wider wavelength range (between 710 nm and 735 nm) of the complete mode conversion ratio of the waveguides. The low optical propagation loss, high magneto-optical figure of merit and an isolation effect of annealed waveguides are also examined. The results of this experiment demonstrate the feasibility of (Cd,Mn)Te waveguide for the practical waveguide optical isolator.

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来源期刊

INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005.

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0.50

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