Attenuated total reflectance (ATR) GeO2 hollow infrared waveguides deposited from aqueous germanate ion solutions with different GeO2 concentrations

Yi Li; Chengbin Jing; Junhao Chu

doi:10.1117/12.904379

29 November 2011 Attenuated total reflectance (ATR) GeO₂ hollow infrared waveguides deposited from aqueous germanate ion solutions with different GeO₂ concentrations

Yi Li, Chengbin Jing, Junhao Chu

Author Affiliations +

Proceedings Volume 8307, Passive Components and Fiber-Based Devices VIII; 83072I (2011) https://doi.org/10.1117/12.904379
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

The attenuated total reflectance (ATR) hollow waveguides capable of transmitting CO₂ laser have attracted wide research interest due to its advantages of simple structure, no end reflection, small beam divergence and good transmission modes. In this work, GeO₂ ATR hollow waveguides for delivery of CO₂ laser radiations were fabricated via an acid-induced liquid phase deposition (LPD) process. GeO₂ hollow waveguide samples were deposited from acidic aqueous germanate ion solutions with different GeO₂ concentrations. The morphology, compactness and surface roughness of the LPD-derived GeO₂ ceramic film were examined by SEM. The crystalline structure of the film sample was determined using XRD. The low-loss window of the GeO₂ waveguide tube was observed by a FTIR spectrometer. We measured the transmission loss of the sample for delivery of a 10.6 μm TEM₀₀ CO₂ laser beam. The results show that the variations in loss are consistent with the quality change of the GeO₂ ceramic films grown in solutions at different concentrations.

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Yi Li, Chengbin Jing, and Junhao Chu "Attenuated total reflectance (ATR) GeO₂ hollow infrared waveguides deposited from aqueous germanate ion solutions with different GeO₂ concentrations", Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83072I (29 November 2011); https://doi.org/10.1117/12.904379

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