The tensile strength of optical fiber is low. Generally, the tensile strength of optical fiber is between 600g and 800g, but the specified tensile strength of optical fiber is above 2000g. Low tensile strength The theoretical tensile strength of the optical fiber is greater than the tensile strength of the steel. However, due to the existence or generation of micro cracks on the surface of the optical fiber during the production process, all the stresses are applied to the optical fiber when it is pulled, so the actual tensile strength of the optical fiber is very low, which is why the bare optical fiber is easy to break.

Targeted waterproof measures should be taken in the structural design, production, transportation, construction and maintenance of optical fiber. It should be pointed out that with the deepening of research and the development of technology, these shortcomings of optical fiber communication have been overcome. Introducing these shortcomings requires us to avoid these problems in practical application. As an important support of information technology, optical fiber communication technology will play an important role in the future information society.

From the development trend of modern communication, optical fiber communication will also become the mainstream of future communication development. People expect that the era of true all-optical network will also come in the near future.