Nonlinear Applications of Compact Bismuth Erbium Doped Fiber Amplifier

A CW Multi & dual-wavelength laser comb is demonstrated using a nonlinear effect in a 215cm long highly nonlinear Bismuth-based Erbium-oped fiber (Bi-EDF). This report is based on methods for determination of nonlinear properties of Bi-EDF assisted by Four-wave mixing (FWM) effect. The laser generates more than 10 lines of optical comb with a line spacing of approximately 0.41nm at 1615.5nm region using 146mW of 1480nm pump power for determination of dispersion. We also estimated the nonlinear parameter , nonlinear index coefficient n2 and n2/Aeff in 1612 nm input signal as 59.16 (W-1km-1), 4.40×10-19 (m2/W) and 1.51×10-8 (W-1) for Bi-EDF, respectively. Empirical comparison shows that the values found by theoretical model are both in good agreement and much higher than that of silica.

Nonlinear Applications of Compact Bismuth Erbium Doped Fiber Amplifier Keywords:

Nonlinear parameter , Bi-EDF , Fourwave mixing , Efficiency , Multi-wavelength