Demonstration of resonance frequency enhancement effect by using split pumping region in active multi-mode interferometer laser diode

High intrinsic modulation bandwidth InGaAsP/InGaAsP 1.55 µm asymmetric active multimode interferometer laser diode by using split pump configuration

“…The reason behind the demand is low power consumption, high bitrate, relatively simple circuitry to drive and cost effectiveness. 1,2) To support the growing need for larger transmission speeds in optical communications, much research has been devoted to increase the direct modulation bandwidth of semiconductor lasers, especially for short distance application, 3,4) such as radio over fiber, 5) short distance optical interconnects, 6) and onchip photonic network. 7) In a typical laser, the resonance frequency ( f r ) is a figure of merit that is a necessary but not sufficient condition for determining its maximum direct modulation bandwidth.…”