Hollow fibers for transmitting CO_(2) laser light were fabricated by the chemical vapor deposition (CVD) method. A dielectric film of copper oxide (Cu_(2)O) was deposited upon the inside of a Ag-coated glass capillary by use of a metal acetylacetonate as the precursor. The waveguide, which was coated with Cu_(2)O and had a bore diameter of 700 μm, showed a loss of 0.9 dB/m for CO_(2) laser light, The Cu_(2)O film deposited by CVD had high chemical and heat resistivity. Therefore a hollow fiber coated with copper oxide is suitable for high-power laser applications in a severe environment.
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机译：通过化学气相沉积（CVD）方法制备了用于传输CO_（2）激光的中空纤维。通过使用乙酰丙酮金属盐作为前体，将氧化铜（Cu_（2）O）的介电膜沉积在涂有银的玻璃毛细管的内部。涂覆有Cu_（2）O且孔径为700μm的波导对于CO_（2）激光显示出0.9 dB / m的损耗，通过CVD沉积的Cu_（2）O膜具有很高的化学性质和耐热性。因此，涂有氧化铜的空心纤维适用于恶劣环境下的高功率激光应用。
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