Temperature regulation type high-precision optical attenuation device

Abstract

The invention discloses a temperature regulation type high-precision optical attenuation device which comprises a control power source and two sections of optical fibers. A semiconductor diaphragm is arranged at the connection position of the two sections of optical fibers. The two sections of optical fibers are arranged in a temperature controllable warmer after the connection position of the two sections of optical fibers is fixed. Leads connected with the control power source are arranged at two ends of the warmer, temperature regulation of the warmer can be achieved by regulating the control power source, and the semiconductor diaphragm is made from germanium or gallium arsenide or silicon semiconductor materials. The temperature regulation type high-precision optical attenuation device is high and stable in regulation precision, capable of achieving regulation in a large dynamic range, simple in structure, low in cost and high in reliability. The temperature regulation type high-precision optical attenuation device capable of achieving flexible regulation in the large dynamic range has practical significance in optical communication and optical fiber sensing.

Description

technical field [0001] The invention relates to the technical fields of optical network communication and sensing, in particular to a temperature-adjustable high-precision optical attenuation device. Background technique [0002] The optical attenuator is a very important optical passive device that appears with the development of the optical communication industry. It can reduce the received signal strength to the required level and can be used for optical communication lines, system evaluation, and research And adjustment, correction, etc., the market demand is huge. [0003] According to the working principle of optical attenuators, the current optical attenuators can be divided into: displacement optical attenuators, coating optical attenuators, attenuating sheet optical attenuators, liquid crystal optical attenuators and photoelectric conversion optical attenuators, etc. Among them, the displacement type optical attenuator, the liquid crystal type optical attenuator an...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention designs a novel temperature-adjustable high-precision optical attenuation device; this scheme realizes a large-scale high-precision multi-ring multi-ary digitally tunable optical fiber attenuator, solving At present, there are many discrete components of optical fiber attenuators, which are expensive, not compact in structure, poor in stability, and difficult to control in performance.

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