J4 ›› 2016, Vol. 33 ›› Issue (1): 81-87.

• Laser Applications • Previous Articles     Next Articles

Constant temperature control system design of single photon detector SPAD

QI Shao-shuai,ZHANG Tian-shu,FU Yi-bin,WANG Huan-xue,LV Li-hui   

  1. Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academic of Sciences, Hefei 230031, China
  • Received:2015-01-12 Revised:2015-04-27 Published:2016-01-28 Online:2016-01-06
  • Supported by:

    中国科学院战略性先导科技专项(XDB05040300)、国家重大科学仪器设备开发专项(2011YQ120024)、国家自然科学基金(41205119、41305126)

Abstract:

First analyzes the temperature characteristics of avalanche voltage of SPAD, it concludes that the avalanche voltage of SPAD variation with temperature about 0.7V/℃, need to design the constant temperature control circuit to ensure the normal operation of SPAD. From the perspective of the optimal temperature control strategy, choose MAX1978 temperature control chip circuit design to realize the SPAD temperature constant. And then briefly introduce the each component and principle of constant temperature control system. Finally, through the experiment of constant temperature control circuit to verify the feasibility of the circuit, constant temperature control circuit can make the SPAD working temperature change constant at 0.06℃, the stability and precision of temperature control can meet the requirements, to ensure the normal work of the SPAD, to meet the requirements of constant temperature of single photon detector SPAD.

Key words: optoelectronics; Single photon avalanche diode; Constant temperature control system; Temperature control chip

CLC Number: