An optical trap forms a restoring optical force field to immobilize and manipulate tiny objects. A fiber optical trap is capable of establishing the restoring optical force field using one or a few pieces of optical fiber, and it greatly simplifies the optical setup by removing bulky optical components, such as microscope objectives from the working space. It also inherits other major advantages of optical fibers: flexible in shape, robust against disturbance, and highly integrative with fiber-optic systems and on-chip devices. This review will begin with a concise introduction on the principle of optical trapping techniques, followed by a comprehensive discussion on different types of fiber optical traps, including their structures, functionalities and associated fabrication techniques. A brief outlook to the future development and potential applications of fiber optical traps is given at the end.

中文翻译：

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使用光纤进行光陷波和操纵

光阱形成恢复光力场以固定和操纵微小物体。光纤陷阱可以使用一根或几根光纤建立恢复光强场，并且通过从工作空间中移除笨重的光学组件（例如显微镜物镜），可以大大简化光学设置。它还继承了光纤的其他主要优点：形状灵活，抗干扰能力强，并且与光纤系统和片上设备高度集成。本文将首先简要介绍光陷阱技术的原理，然后对各种类型的光纤陷阱进行全面的讨论，包括其结构，功能和相关的制造技术。