TY - JOUR ID - TI - Crosstalk and Noise in Optical Amplifier with Gain Clamping by Vertical Laser Field AU - Janii Okasanen AU - Juekka Tuikki PY - 2020 VL - 16 IS - 2 SP - 17 EP - 24 JO - Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية SN - 18132065 23091673 AB - We have calculated the transient behavior and noise of a semiconductor optical amplifier with its gain clamped by a vertical cavity laser (VCL). The calculations are based on a numerical stochastic rate equation model including several forward and backward propagating channels that are coupled to the vertical laser field through the active medium. The noise model takes into account randomly amplified spontaneous emission and random gain. Numerical simulations have been carried out to study the relaxation oscillations, cross talk and noise in a system with a strong input signal switched on and off while observing the output signals, VCL photon density and carrier density. Results show that the VCL field captures most of the disturbances, in agreement with available experimental data.

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