Problems Nonlinear Fiber Optics Agrawal Solutions -

for step in range(Nz): # Nonlinear step (half) A *= exp(1j * gamma * dz/2 * abs(A)**2) # Linear step (full in freq domain) A_f = fft(A) A_f *= exp(1j * (beta2/2 * omega**2 + 1j*alpha/2) * dz) A = ifft(A_f)

# Nonlinear step (half) A *= exp(1j * gamma * dz/2 * abs(A)**2) Problems Nonlinear Fiber Optics Agrawal Solutions

Derive the dispersion length (L_D = T_0^2/|\beta_2|) and nonlinear length (L_NL = 1/(\gamma P_0)). for step in range(Nz): # Nonlinear step (half)

It sounds like you’re looking for help with the from Govind Agrawal’s Nonlinear Fiber Optics (likely the 5th or 6th edition). This book is the standard graduate text, and its problems are notoriously math-heavy (involving coupled GNLSE, split-step Fourier, perturbation theory, etc.). [ \kappa = \Delta\beta + 2\gamma P_p ]

[ \kappa = \Delta\beta + 2\gamma P_p ] where (\Delta\beta = \beta(\omega_s) + \beta(\omega_i) - 2\beta(\omega_p)).