Optical fiber delay control device

The invention provides a delay control device of an optical fiber. The device comprises a delay control module, a temperature control module and a hollow closed shell, the closed shell is used for accommodating an optical fiber section to be subjected to delay control; the delay control module is used for receiving the delay information and obtaining a set temperature according to the delay information; the temperature control module is used for controlling the temperature in the closed shell to reach a set temperature; wherein the surface of the optical fiber section is coated with a metal material of which the heat conductivity coefficient is greater than 100 watts per meter per degree centigrade. By coating the metal material on the surface of the optical fiber, the heat conduction speed of the optical fiber is improved, the temperature of the optical fiber is quickly controlled, and the delay of the optical fiber is quickly controlled. 本发明提供一种光纤的延时控制装置。该装置包括：延时控制模块、温度控制模块和中空的密闭壳体；密闭壳体，用于容纳待进行延时控制的光纤段；延时控制