Detonation damper for pulse detonation engines

An engine (100) includes at least one pulse detonation chamber (120) configured to receive and detonate a fuel and an oxidizer. The pulse detonation chamber has an outlet end (128) and includes a porous liner (10) adapted to fit within an inner surface (122) of the pulse detonation chamber within a vicinity of the outlet end. The engine (100) also includes a casing (130) housing the pulse detonation chamber.