Apparatus for generating long-period gratings in optical fiber

摘要

An apparatus for generating long-period gratings in an optical fiber is disclosed herein. The apparatus includes an intensity adjusting unit and a period adjusting unit that come into contact with a portion of an optical fiber where gratings will be generated. The intensity adjusting unit includes a press part configured to press the portion of the optical fiber where gratings will be generated against a grating generating unit, and an intensity adjusting mechanism configured to apply force to the press part. The period adjusting unit includes a period adjusting mechanism configured to selectively increase and decrease the length of the grating generating unit.

主权项

1. An apparatus for generating long-period gratings in an optical fiber, the apparatus comprising:
an intensity adjusting unit configured to adjust a radius of curvature of gratings generated in an optical fiber; and a period adjusting unit configured to adjust a period of the gratings generated in the optical fiber, wherein the period adjusting unit comprises: a grating generating unit configured to generate the gratings in the optical fiber; and a period adjusting mechanism configured to selectively increase and decrease a length of the grating generating unit, wherein the period adjusting mechanism comprises: a period adjusting knob configured to be rotatable; a pair of driven gears operatively connected to the period adjusting knob, and configured to be rotated in opposite directions; and a grating period determination unit connected to opposite ends of the grating generating unit, and configured such that a location of the grating period determination unit is changed through rotation of the pair of driven gears to change a length of the grating generating unit.