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，若有残留应重剥。如有极少量不易剥除的涂覆层，可用棉球沾适量酒精，边浸渍，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 peeled again. If there is a very small amount of coating layer that is not easy to peel off, cotton ball can be dipped with appropriate amount of alcohol, while dipping, and 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，夹住已剥覆的光纤，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，这样既可提高棉花利用率，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 stripped optical fiber, wipe along the fiber axial direction, strive for a 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 should be used each time, which can not only improve the utilization rate of cotton, but also prevent two times of fiber detection Pollution.
3 裸纤的切割
3 bare fiber cutting
切割是光纤端面制备中最为关键的部分，精密、优良的切刀是基础，严格、科学的操作规范是保证。
Cutting is the most important part in the preparation of optical fiber end face. Precise and excellent cutter is the basis, and strict and scientific operation specification is the guarantee.