Adjusting device of optical fiber polarization controller

Abstract

The invention relates to an adjusting device of an optical fiber polarization controller, which belongs to the technical field of optical fiber communication. The adjusting device comprises the optical fiber polarization controller, an engraving thumbwheel, a locking fixture, an external panel and a base bracket. According to the adjusting device, the engraving thumbwheel which is exposed out of the external panel is adjusted to rotate, so as to drive an optical fiber ring piece to rotate, external adjustment and quantitative continuous control of the optical fiber ring piece of the optical fiber polarization controller are realized, the repeatability and the adjusting efficiency of the optical fiber polarization controller are increased, and the locking fixture is adopted, so that the long-term working stability of the optical fiber polarization controller is improved. Additionally, the adjusting device of the optical fiber polarization controller provided by the invention has the characteristics of adjusting space saving and low cost, and the adjusting device is especially suitable for controlling the polarization state of light waves in laboratories.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and in particular relates to an adjusting device of an optical fiber polarization controller. Background technique [0002] The rapid development of optical fiber communication networks puts forward more and more requirements for optical information processing technology. Using the ultra-fast response characteristics of nonlinear effects in optical fibers or semiconductor materials can realize high-speed optical signal processing. However, almost all all-optical processes are related to light waves. related to the polarization properties. For example, using a polarization multiplexing system can double the transmission capacity of an optical fiber communication system. In the research of optical fiber communication technology, to effectively control the polarization state of light waves, various polarization controllers must be used. At present, the commonly used polarizatio...

AI Technical Summary

Problems solved by technology

[0004] The current fiber optic polarization controller obtains different polarization states of light waves by manually rotating the fiber optic ring, which has the following deficiencies in practical applications: (1) The fiber optic polarization controller cannot rotate the fiber ring because there is no scale mark for reference. The chip can only be adjusted by feeling, and the adjustment efficiency is very poor when repeating the previous polarization state. It is difficult to adjust all the fiber rings to their original positions at the same time, let alone use the fiber polarization controller to generate the specified optical polarization state. ; (2) If the fiber optic polarization controller is placed for a long time, its fiber optic ring (in a tilted state) will gradually deviate from its original position under the action of gravity. It is easy to occur, and it is difficult to maintain a fixed polarization state for a long time, thus affecting the performance of the optical fiber communication system; (3) The fiber optic polarization controller adjusts the angle of the fiber ring piece by manual twisting, which is not suitable for direct panel installation (external adjustment ); when more optical fiber polarization controllers are required or the placement space is denser, it is easier to touch or interfere with other devices when reaching out to twist the optical fiber ring piece, so more chassis space is often required

Images