针对目前商用光谱仪无法在极微弱光测量环境下实现光谱探测的问题, 提出一种基于单光子探测器阵列的光谱测量系统, 利用单光子探测器在极微弱光环境下的探测能力, 将虚像相位阵列(VIPA)和反射式衍射光栅构成的二维色散结构与单光子探测器阵列相结合, 并通过实验测试得出系统的二维分光效果、相对光谱透射比曲线以及单光子探测性能。实验结果表明: 该系统不仅灵敏度高, 还实现了0.006 nm的波长分辨率；与目前普遍采用的基于时间相关单光子计数的光谱测量系统相比, 该系统具有更优的波长分辨率和更大的测量带宽。

In view of the problem that commercial spectrometers can not realize spectral detection in the extremely weak light measurement environment, this paper puts forward a kind of spectral measurement system based on single photon detector array, using the single photon detector in a very weak light environment detection ability, the virtual image phase array(VIPA) and reflective diffraction grating of two dimensional dispersion structure are combined with single photon detector array. The two dimensional effect, relative spectral transmittance curve and single photon detection performance of the system are obtained by experimental test. The experimental results show that the system not only has high sensitivity, but also achieves wavelength resolution of 0.006 nm. Compared with the widely used spectral measurement system based on time-dependent single photon counting, the proposed system has better wavelength resolution and larger measurement bandwidth.