随着半导体激光器的进步，现在激光器已用于空间实验。最初的实验是在１９９４年，当时作为空间雷达从航天飞机上进行大气观测，从而拉开了激光器在空间应用的帷幕。１　空间碎片探测及其对策　　人造卫星等人类在宇宙空间的活动频繁，宇宙空间被称作空间碎片的宇宙垃圾就会散 As semiconductor lasers have advanced, lasers have now been used in space experiments. The first experiment was conducted in 1994, when it was used as a space radar to conduct atmospheric observations from the space shuttle, thus opening the curtain of the laser application in space. 1 Space debris detection and countermeasures Human beings, including satellites, have frequent activities in cosmic space, and space debris in the universe is called cosmic rubbish