cabam
Nov1-10, 08:03 AM
1. The problem statement, all variables and given/known data
A pulse train of Gaussian shaped pulses travels in a single mode fibre. The separation (T) of the pulse centres is five times the temporal width (\Delta \tau) of an individual pulse i.e. T=5*\Delta \tau. The dispersion of the material is D=200ps/nm/km.
L=0.1km, n plastic = 1.4, n air = 1.0 \lambda=630nm
a)draw a diagram of the pulse train.
2. Relevant equations
\DeltaT=D*\Delta\lambda*L
\Delta\lambda=\lambda^2/(c*\Delta\tau)
3. The attempt at a solution
\Delta\lambda=(5*\lambda^2)/(T*C)
\DeltaT= 2.1ps/T
im not sure where to go from here, help would be much appreciated :)
A pulse train of Gaussian shaped pulses travels in a single mode fibre. The separation (T) of the pulse centres is five times the temporal width (\Delta \tau) of an individual pulse i.e. T=5*\Delta \tau. The dispersion of the material is D=200ps/nm/km.
L=0.1km, n plastic = 1.4, n air = 1.0 \lambda=630nm
a)draw a diagram of the pulse train.
2. Relevant equations
\DeltaT=D*\Delta\lambda*L
\Delta\lambda=\lambda^2/(c*\Delta\tau)
3. The attempt at a solution
\Delta\lambda=(5*\lambda^2)/(T*C)
\DeltaT= 2.1ps/T
im not sure where to go from here, help would be much appreciated :)