针对激光烧蚀微推进技术中推进剂微推力偏小、冲量耦合系数较低的现状,设计了掺杂碳粉的聚叠氮缩水甘油醚(GAP)推进剂。利用低功率半导体激光器,对GAP推进剂的推进性能进行了测试和分析,获得了不同脉宽条件下,比冲、冲量耦合系数的变化规律。研究结果表明,激光功率7W、脉宽2ms时,推进剂比冲和冲量耦合系数最大分别为100s和195μN/W。 Aiming at the situation that the micro-thrust of the laser ablation technology is small and the impulse coupling coefficient is low, a powder-doped poly azide glycidyl ether (GAP) propellant is designed. The performance of GAP propellants was tested and analyzed with low power semiconductor lasers. The variation of specific impulse and impulse coupling coefficients under different pulse widths was obtained. The results show that the maximum ratio of specific impulse and impulse coupling of propellant is 100s and 195μN / W at laser power of 7W and pulse width of 2ms respectively.