Hello,
I am doing my master degree in the field on dsp based fiber optic
gyroscope.
I have some doubt regarding fiber optic gyroscope
1. How modulating signal applied to PZT help in detecting small
rotation rate? How is optical length changed by the modulating
signal?.since both clockwise as well as counter clockwise light signal
pass through the PZT.
2. Does the modulating frequency change with temperature? how do you
cater this problem?
3.what is reciprocality property?
4.what is the best value for the modulation index for wide dynamic
range.
5. How can i use fourier transformer because if the modulating
frequency drifts because of temperature, this will result in leakage
in the FFT output? How do i cater for this problem?

Any reference or suggestion will be great
waiting for reply
with regards
praveen