光学相干层析成像技术是一种新型的成像技术，由于相干性和实用性的特殊要求，系统需要光源具有较宽的频谱宽度、输出功率高、稳定性好、易于耦合．超辐射发光二极管和超短脉冲飞秒激光是能满足这些要求的理想光源．本文在建立上述两种光源成像装置的基础上，对系统的横向、纵向分辨率等基本性能进行了测量；并对生物组织样品的成像质量进行了比较． Optical coherence tomography is a new imaging technique. Due to the special requirements of coherence and practicability, the system needs a light source with a wide spectrum width, high output power, good stability and easy coupling. Superluminescent LEDs and ultra-short pulse femtosecond lasers are ideal sources of light to meet these requirements. Based on the above two light source imaging devices, the basic performance of the system such as horizontal and vertical resolution are measured. The imaging quality of biological tissue samples are compared.