Optical fiber clamp

Abstract

The invention discloses an optical fiber clamp comprising a base and a top cover, wherein a square convex body is arranged on the base, a square through hole for embedding the square convex body on the base is arranged on the top cover, a horizontal rod is assembled on the square convex body, both ends of the horizontal rod extend into through holes at both sides of the square through hole, the base and the top cover can swing by using the horizontal rod as lever support, the back ends of the base and the top cover are respectively provided with a rubber gasket, a staircase-shaped axial hole used for an optical fiber FC head to extend in and be communicated with a groove at the back end of the base is arranged on the base, and the front end of the top cover is provided with a spring for adjusting the stress size of an optical fiber. The optical fiber clamp fixes the optical fiber by utilizing the elastic force of the spring and the lever principle, has small size and convenient operation, can avoid the hard contact of the optical fiber and the staircase-shaped axial hole by utilizing the rubber gasket, the elastic force on the optical fiber is not as hard as the hard force of a magnetic body so that the optical fiber receives small stress, and the optical fiber clamp has uniform section distribution, less micro-bending loss and adjustable length of the spring in the clamp and can ensure the controllability of optical fiber loss.

Description

technical field [0001] The invention relates to an optical fiber clamp, in particular to an optical fiber clamp with low stress and low microbend loss. Background technique [0002] Optical fiber plays an irreplaceable role in optical sensing and optical fiber communication. As a device for fixing optical fibers, optical fiber clamps have become particularly important. However, in many applications, traditional optical fiber clamps use electromagnet attraction to fix optical fibers. Due to The attractive impulse of the magnet is large, resulting in a large stress on the side of the fiber and even sometimes breaking the fiber. Stress on the fiber section will cause stress birefringence, microbend loss, elastic-optic effect and other factors. In optical sensing, slight changes in the polarization state when light propagates in the optical fiber will cause inaccurate sensing accuracy. Microbend loss also needs to be avoided as far as possible in the field of optical fiber comm...

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