Temperature control structure used for optical microwave time-delay network

Abstract

The present invention provides a temperature control structure used for an optical microwave time-delay network, comprising a light emitter (1), a light receiver (2) and a light delayer (7) arranged in a box, wherein the light emitter (1) comprises a laser chip (1-1) therein, the light receiver (2) comprises a light receiver chip (2-1) therein. The temperature control structure is characterized by comprising a temperature control circuit (6) used for controlling a first stage temperature control unit (3), a second stage temperature control unit (4) and a third stage temperature control unit (5).

Description

technical field [0001] The invention relates to a temperature control structure, in particular to a three-stage temperature control structure used in an optical microwave delay network, and belongs to the technical field of temperature control. Background technique [0002] Optical microwave delay is a combination of photon and microwave technology. Optical microwave delay network has the advantages of wide bandwidth, low power consumption, small size, and no electromagnetic interference. It is widely used in various fields of national economy and national defense technology. At the same time, the optical microwave delay network is one of the core components of the optical phase control radar, which overcomes the inherent aperture effect and the limitation of the transit time of the traditional electric phase control radar, and improves the resolution, recognition ability, and solution of the radar. Multi-target imaging capability and anti-electromagnetic interference capabi...

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Problems solved by technology

[0003] However, the development of the optical microwave delay network system faces many problems, especially the sensitivity of the optical microwave delay network system to the ambient temperature restricts its development. In the optical microwave delay network system, most of the devices are extremely sensitive to temperature. Small fluctuations in ambient temperature will have a non-negligible impact on its accuracy and stability. At the same time, the normal operating temperature range of these devices is very narrow. When the external ambient temperature is too high or too low, the optical microwave delay network system will not work normally. work or even cause permanent damage to the device

[0004] The temperature control structure of the existing optical microwave time-delay network system is generally controlled by the method of integrating semiconductor cooling chip TEC and thermistor NTC (NegativeTemperatureCoefficient) inside the optical transmitter or optical receiver, but due to the characteristics of TEC itself, When the TEC works for a long time, the heat generated by it is easy to accumulate, and a heat sink must be added, and the efficiency of the heat sink is often proportional to its volume, which increases the volume of the system; at the same time, when the external temperature is too high Or when it is too low, normal temperature control cannot be achieved due to the power limitation of the TEC

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