Advantages:
There are some advantages of avalanche photodiode which are given below,
- The avalanche photodiode has greater level of sensitivity.
Disadvantages:
There are some disadvantages of avalanche photodiode which are given below,
- The avalanche photodiode gives a much higher level of noise than a p-n photodiode.
- The avalanche process means that the output is not linear.
- In avalanche photodiode much higher operating voltage may be required.
![Avalanche photodiode Avalanche photodiode](http://www.semiconductorforu.com/wp-content/uploads/2017/06/1200px-Avalanche_photodiode-300x150.jpg)