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We propose a scheme to realize the storage and retrieval of light pulses in afast-light medium via a mechanism of active Raman gain (ARG). The system underconsideration is a four-level atomic gas interacting with three (pump, signaland control) laser fields. We show that a stable propagation of signal lightpulses with superluminal velocity (i.e. fast-light pulses) is possible in suchsystem through the ARG contributed by the pump field and the quantuminterference effect induced by the control field. We further show that a robuststorage and retrieval of light pulses in such fast-light medium can beimplemented by switching on and off the pump and the control fieldssimultaneously. The results reported here may have potential applications forlight information processing and transmission using fast-light media.

Storage and Retrieval of Light Pulses in a Fast-Light Medium via Active Raman Gain