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# If a resister is placed in the circuit, it prevents the amperage to get too high and stops the diode from being fried. If the amps do get too high, then the resister would lower the voltage and the amps by creating resistance and turning the excess energy to heat. To make an avalanche-like pulse, you would also a capacitor that would be connected to the diode. It serves as a tempoary battery that allows the voltage and amperage to get high and create a pulse, then the capacitor will become drained and the resister would lower the voltage to below breakdown and the system would reset itself.  
 
# If a resister is placed in the circuit, it prevents the amperage to get too high and stops the diode from being fried. If the amps do get too high, then the resister would lower the voltage and the amps by creating resistance and turning the excess energy to heat. To make an avalanche-like pulse, you would also a capacitor that would be connected to the diode. It serves as a tempoary battery that allows the voltage and amperage to get high and create a pulse, then the capacitor will become drained and the resister would lower the voltage to below breakdown and the system would reset itself.  
 
# A Photodiode is a diode that is especially sensitive to light. It is usually made with a clear glass or plastic case that allows light through to maximize the effect light has upon the diode
 
# A Photodiode is a diode that is especially sensitive to light. It is usually made with a clear glass or plastic case that allows light through to maximize the effect light has upon the diode
# An avalanche photodiode... (to be continued)
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# An avalanche photodiode is a diode designed in such a way that it releases a pulse of electrons per photon instead of just one. In the process mentioned beforehand, the avalanche photodiode uses the energy from the photon to throw the photodiode off its metastable state and create a pulse.  
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# Temperatures are caused by vibrations of atoms and a higher temperature would cause more random thermal fluctionsations. Some of these thermal fluctuations have enough energy to throw the photodiode off its metastable state also, causing misfirings.
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