A high-output pulse light source comprising a pulse seed light source having a pulse signal source for outputting a pulse-like electric signal and a laser diode for converting the pulse-like electric signal from the pulse signal source into a pulse beam, and a rare-earth element doped fiber amplifier for amplifying a pulse beam from the pulse seed light source, an output power of the pulse seed light source at a pulse-off time being up to 100 mu W.
