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Volume 28 Issue 3
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2004 >  28(3): 306-308

Citation:
shu

All-soild-stated laser optics feedback controlled power supply

  • 1.

    Transportation and Traffic College, Jilin University, Changchun 130022, China;

  • 2.

    Changchun Institute of Optics Fine Mechanics and Physics, the Chinese Academy of Sciences, Changchun 130022, China

  • Received Date: 2003-07-08
    Accepted Date: 2003-08-31
  • The paper describes a CW,non-colling,digital all-solid-stated LD pumped Nd:YVO4 laser driver which adopts microprocessor control,stability power of optics feedback about 10mW output power.The system is composed of stable current source,protection circuit,pulse driver,Si photo-detector amplified and hign-speed microprocessor control system.Based on error variety of nonlinear control curves of LD output laser power by Si photo-detector,we take advantage of window node PID control algorithm to achieve high stability of laser power and reduce error amends.Combining appropriate hardware and software in our driver,we have achieved a variety of protection features including the ability to match and harmonize dynamic state and static state relation to gain LD output power instability to ±3% and internal orexternal pulse width modulation,relay soft and hardwer over-current protection and overvoltage shut-off.A continuously adjustable optical output power with high accuracy and stability has been obtained.
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  • [1]

    OTSUKA K,KO J Y,CHERN J L et al.Instabilities in a laserdiode-pumped microchip solid-state laser with feedback[J].Phys Rev,1999,A60(5):3389～3391.
    [2] 邹文栋,高益庆,单片机控制的半导体激光驱光动电源[J].激光杂志,2002.23(4):70～71.
    [3]

    YAN P,HE B,WEI G H.Experiment research on a highly stable LD-pumped solid state laser[J].Chinese Joumal of Laser,2000,B89(6):481～487.
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通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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All-soild-stated laser optics feedback controlled power supply

  • 1. Transportation and Traffic College, Jilin University, Changchun 130022, China;
  • 2. Changchun Institute of Optics Fine Mechanics and Physics, the Chinese Academy of Sciences, Changchun 130022, China
  • Received Date: 2003-07-08
  • Accepted Date: 2003-08-31
  • Available Online: 2004-05-25

Abstract: The paper describes a CW,non-colling,digital all-solid-stated LD pumped Nd:YVO4 laser driver which adopts microprocessor control,stability power of optics feedback about 10mW output power.The system is composed of stable current source,protection circuit,pulse driver,Si photo-detector amplified and hign-speed microprocessor control system.Based on error variety of nonlinear control curves of LD output laser power by Si photo-detector,we take advantage of window node PID control algorithm to achieve high stability of laser power and reduce error amends.Combining appropriate hardware and software in our driver,we have achieved a variety of protection features including the ability to match and harmonize dynamic state and static state relation to gain LD output power instability to ±3% and internal orexternal pulse width modulation,relay soft and hardwer over-current protection and overvoltage shut-off.A continuously adjustable optical output power with high accuracy and stability has been obtained.

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