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    Having a Stable Beam Output

    I have a cheap 30mw green laser pointer but when I measure it's intensity with an LDR or CCD, it gives different values each time.Very close but not same. What I need is a stable beam, when I turn this pointer on, it's intensity level start to decrease after a period of time and there is no...
  2. Y

    Having a Stable Beam Output

    Hi everyone! I just joined the site and it feels like home. I am conducting an experiment where I need to be sure that the output of my laser should be constant. I will drive the diode using pic mcu. My first guess is to split the beam to half using a crystal and measure the power of the half...


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