RF signal Modultion response (Graph Between Amplitude and Output Optical Power)
Hi ever one
I am trying to modulate RF signal using LiNb Modulator and Dc bias as shown in below figure (i have taken default values).
But the problem is that when i want to make 2-D graph between RF input signal(the input RF signal amplitude is sweep between -1 to 1 for
10 iterations) and modulator output optical power measured from power meter. The 2-D graph between them gives constant value (i am also
attaching the same constant curve) also Optical power meter shows same measured reading throughout (-1 to 1 sweep iterations values of)
input RF Signal.
(In the graph RF signal amplitude is on X-axis while Modulator Out power on Y-axis)
So i want to know
1. why it behaves like that ?
2. and modulator output power should change with input voltage but that is not happening here, why ?
3. how can we make output power of modulator change with input RF Signal ?
4. Kindly share any tutorials related to such RF modulation using DC biasing or any RF modulation related tutorials ???
i am working on it since last week but couldn’t find any solution.
i will be v thankful to u for ur kind help and response.
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