WIDE-BAND VHF-PULSE LIGHT OSCILLATOR UTILIZING CHIRP PULSE AMPLIFICATION

摘要

Provided is a wide-band VHF-pulse light oscillator comprising a light-amplification medium (1) for optically amplifying an incident light having a wide band or a plurality of bands, to perform a light energy conversion into an oscillating light to oscillate from an optical resonator, an energy injection element (2) either for injecting an energy into the light-amplification medium to generate a light energy or for injecting the light energy into the light-amplification medium, a negative dispersion element (4) for applying a negative dispersion to a pulse light or an oscillating light, a mode locker (9) for applying a mode synchronizing action to the pulse light, a positive dispersion element (11) for applying a positive dispersion to the pulse light, and an optical system having a looped optical path formed therein to return from the light-amplification medium through the negative dispersion element, the mode locker and the positive dispersion element to the light-amplification medium, so that the pulse light may circulate in at least one of forward and backward directions. As a result, the VHF-pulse light can be generated over a wide band and in a high efficiency.