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Semiconductor laser temperature control device, temperature control system and control method thereof

A temperature control device and temperature control system technology, applied in the field of lasers, can solve the problems of large temperature adjustment changes and inability to effectively fine-tune, and achieve high stability

Pending Publication Date: 2020-01-17
南京光坊科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The temperature control system that relies on the temperature sensor has the hysteresis effect of refrigeration, and the temperature adjustment varies greatly, so it cannot be fine-tuned effectively

Method used

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  • Semiconductor laser temperature control device, temperature control system and control method thereof
  • Semiconductor laser temperature control device, temperature control system and control method thereof
  • Semiconductor laser temperature control device, temperature control system and control method thereof

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Embodiment

[0029] refer to figure 1 As shown, the present embodiment is a semiconductor laser temperature control device, including a heat sink 1 having an open slot 11, a semiconductor cooling sheet 2 arranged on the back of the cooling sheet 1, an insulating sheet 3 arranged on the surface of the semiconductor cooling sheet 2, and a The diffused water vapor flows to the fan 4 on the outside of the opening slot 11 .

[0030] The heat sink 1 includes a U-shaped body 12 and a plurality of heat-dissipating fins 13 arranged at equal intervals inside the U-shaped body 12 . The ends of the plurality of cooling fins 13 are flush with the ends of the opening slots 11 of the U-shaped body 12 . The cooling fins 13 are vertically disposed in the slot 11 . Both sides of the cooling fins 13 communicate with the outside world, which is beneficial to the distribution of water vapor and heat conduction, and the auxiliary semiconductor cooling fins 2 are easy to reach the controlled temperature.

[0...

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PUM

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Abstract

The invention discloses a semiconductor laser temperature control device based on light conversion efficiency feedback, a temperature control system and a control method thereof; The system comprisesa PID control logic module, a laser average current module connected with the PID control logic module and used for returning information to the PID control logic module, a laser conversion efficiencymodule and a temperature sensing module; the PID control logic module is in control connection with a semiconductor chilling plate. The reliability of the temperature control system is improved.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a semiconductor laser temperature control device, a temperature control system and a control method thereof. Background technique [0002] The traditional laser water cooling system uses a temperature sensor to determine whether to lower the temperature of the cooling water to control the temperature of the cooling water, and to control the power on and off status of the compressor (running or stopping) to achieve temperature control of the cooling water. When the temperature sensor detects that the cooling water temperature is higher than the control temperature, the compressor is energized and works, and cools the cooling water through the evaporator to realize the cooling process of the cooling water; the cooling water continues to cool down until the temperature sensor detects that the cooling water temperature reaches Or when the temperature is lower than the cont...

Claims

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Application Information

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IPC IPC(8): H01S5/024
CPCH01S5/02415H01S5/02407
Inventor 张书铭马吉德·伊姆蒂亚兹王志豪
Owner 南京光坊科技有限公司
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