裸纤的清洁
Cleaning of bare fiber
裸纤的清洁，应按下面的两步操作：
Clean the bare fiber according to the following two steps:
1）观察光纤剥除部分的涂覆层是否全部剥除，若有残留，应重新剥除。如有极少量不易剥除的涂覆层，可用绵球沾适量酒精，一边浸渍，一边逐步擦除。
1) Observe whether the coating layer of the stripped part of the optical fiber is completely stripped, and if there is residual coating, it should be stripped again. If there is a very small amount of coating layer that is not easy to peel off, the cotton ball can be dipped with appropriate amount of alcohol, while dipping, while gradually erasing.
2）将棉花撕成层面平整的扇形小块，沾少许酒精（以两指相捏无溢出为宜），折成“V”形，夹住以剥覆的光纤，顺光纤轴向擦拭，力争一次成功，一块棉花使用2～3次后要及时更换，每次要使用棉花的不同部位和层面，这样即可提高棉花利用率，又防止了探纤的两次污染。
2) Tear the cotton into fan-shaped pieces with flat layer, dip a little alcohol (knead with two fingers without overflow), fold it into "V" shape, clamp the fiber to be peeled, wipe it along the fiber axis, and strive for success at one time. One piece of cotton should be replaced in time after using 2-3 times, and different parts and layers of cotton flower should be used each time, so as to improve the utilization rate of cotton and prevent the two fiber probes Secondary pollution.