基于量子尺寸效应的InP纳米内包层光纤研制及放大性

利用改进的化学气相沉积法制作出纳米级InP薄膜内包层光纤；根据氢原子本征能量模型计算了InP微粒产生量子尺寸效应的相对粒径a_B=8313 nm，且由量子尺寸效应计算了不同尺寸粒子的带隙能量以及相对应的光吸收波长；由测试工作系统测试，在906—1044 nm，1080—1491 nm，1524—1596 nm 波段上均有增益；结果表明：当内包层薄膜材料厚度达5—50nm量级时，其能级将发生红移，产生放大性能. 关键词： 纳米包层光纤 量子尺寸效应 光放大

Fabrication of InP nano inner cladding fiber and its amplification propertg based on quantum size effect

We uses improved chemical vapour deposition and drew fibres with InP nano thin films. Based on the hydrogen atom model, we calculate the corresponding size of the InP particle a_B=8313 nm. By the quantum size-effect, we calculate the change of the energy band of particles with different sizes and the corresponding light absorption wavelength. From the system testing, the fibres have gain at 906—1044 nm, 1080—1491 nm and 1524—1596 nm. The results showed that the energy level of inner cladding materials creates a red shift when the thickness of thin-film is 5—50 nm. The fibre creates optical amplification.