Temperature control system applicable to pump laser

A temperature control system, a technology for pumping lasers, applied in temperature control, control/regulation systems, laser parts, etc., can solve problems such as poor adaptability to operating conditions, difficulty in establishing mathematical models, and inability to achieve control effects, etc. Achieve the effect of good dynamic characteristics, easy implementation, response speed and system stability requirements

Inactive Publication Date: 2012-04-11
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the thermal control process of lasers including thermoelectric coolers has nonlinear and time-varying uncertainties, and it is difficult to establish an accurate mathematical model. The application of conventional PID controllers cannot achieve id...

Method used

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  • Temperature control system applicable to pump laser
  • Temperature control system applicable to pump laser
  • Temperature control system applicable to pump laser

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Experimental program
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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] see figure 1 As shown, the present invention is a temperature control system suitable for pump lasers, the temperature control system includes a temperature sensing circuit 2, a differential processing circuit 3, a temperature setting circuit 4, a photoelectric isolation circuit 5, a multi-mode temperature A control circuit 6 , a current limiting circuit 7 , a thermoelectric cooler drive circuit 8 and a microcontroller 9 . The signal processing flow of the temperature control system is as follows: the temperature sensing circuit 2 receives the resistance value Rt, and outputs the temperature voltage value Vmon to the differential processing circuit 3 and the photoelectric isolation circuit 5; the differential processing circuit 3 outputs the voltage difference V in To the multi-mode temperature control circuit 6, the photoelectric isolation circuit 5 ...

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Abstract

The invention discloses a temperature control system applicable to a pump laser, comprising a temperature sensing circuit, a differential processing circuit, a temperature setting circuit, a photoelectric isolated circuit, a multimode temperature control circuit, a current limiting circuit, a thermoelectric refrigerator driving circuit and a microcontroller, wherein the temperature sensing circuit detects the temperature in the laser and converts the temperature into a voltage value; the voltage value and a set value of the temperature setting circuit form a deviation signal after being processed by the differential processing circuit; a driving signal is generated after the deviation signal is processed by the multimode temperature control circuit; the driving signal drives a thermoelectric refrigerator in the laser to work as input of the thermoelectric refrigerator driving circuit; and the current limiting circuit can set maximum working current of the thermoelectric refrigerator according to the needs, so that the automatic control of the temperature of the laser is realized.

Description

technical field [0001] The invention relates to a temperature control system of a pump laser, in particular to the temperature control of the pump laser in a wide-spectrum optical fiber light source. Background technique [0002] As a new type of angular rate sensor, fiber optic gyroscope is widely used in aerospace, aviation and ship guidance and other fields. As the main component of the fiber optic gyroscope, the performance of the light source directly affects the accuracy and stability of the gyroscope. Broad-spectrum fiber optic light source is a broadband light source based on the principle of spontaneous emission amplification in erbium-doped fiber. Because of its excellent performance, it has become the preferred light source for fiber optic gyroscopes, especially high-precision fiber optic gyroscopes. The high-precision fiber optic gyroscope puts forward higher requirements for the power and wavelength stability of the wide-spectrum fiber optic light source at ful...

Claims

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Application Information

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IPC IPC(8): H01S3/04G05D23/24
Inventor 杨明伟杨远洪索鑫鑫
Owner BEIHANG UNIV
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