Direct Modulation of LASER
I am trying to directly modulate a LASER using a 10 Gbps digital signal.
The LASER component is of type ‘Directly Modulated LASER measured’ type.
In the LASER’s properties I have set rise time as 0.35 ns. This means that the LASER can be modulated upto 1 Gbps.
Beyond 1 Gbps, the output should get distorted.
But, when I simulated using OptiSystem the LASER could be pass almost all frequencies without any sort of distortion.
Does rise time parameter have any effect at all on the modulation speed?
Please find attached screenshots of
-Electrical and optical signal graphs at 100 Gbps direct modulation
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