据美国宇航局哥达德空间飞行中心报道,在光雷达系统中可用可调谐光纤光栅光谱仪确定火星大气中是否含水,还有更多的应用。研制的低成本光谱仪采用了现有的法布里—珀罗二极管激光器和具有一个输出波长的光纤光栅,其波长可采用机械、电或磁方法调谐。短腔系统已证明分辨率可好于10pm。最近,到达火星的探险者号登陆车对火星进行探测,探险者号装载的小型光雷达探测火星大气中的水蒸气是一个非常艰巨的任务,并受严格限制,其重量不超过2lb,电源功率小于 According to NASA’s Goddard Space Flight Center, tunable fiber grating spectrometers can be used to determine if there is water in the Martian atmosphere in the radars, and more. Low-cost spectrometers were developed using existing Fabry-Perot diode lasers and fiber gratings with an output wavelength that can be tuned mechanically, electrically or magnetically. The short cavity system has proven resolution better than 10pm. Recently, a Mars rover’s Mars rover enlisted Mars on a rover. The Explorer’s miniature photodetector, which detects water vapor in Mars’s atmosphere, is a daunting task that is severely limited to less than 2lb. The power source Less than