Carrier-to-Intermodulation Performance of Multiple FM/FDM Carriers Through a GaA1As Hetrojunction Laser Diode

The simple nonlinear rate equations are used to predict the carrier-to-intermodulation performance of laser diodes excited by an arbitrary number of equal-amplitude, equally spaced FM carriers. The special case of relatively small input carrier amplitudes and slowly varying angle modulations is considered and closed-form approximations are obtained.