Pulse light source

摘要

The pulse light source comprises a semiconductor laser outputting pulse light, an optical filter, and an optical amplifier. The optical filter outputs a chirping component of the inputted pulse light, by adjusting a relative position of a transmission spectrum of the optical filter with respect to an output spectrum of the seed light source.

主权项

1. A pulse light source, comprising:
a semiconductor laser being capable of direct modulation and outputting pulse light; a first optical filter provided on an optical path between the semiconductor laser and an output end of the pulse light source, the first optical filter inputting the pulse light from the semiconductor laser and selectively outputting a chirping component of the inputted pulse light either: after attenuating the optical power more on a shorter wavelength side than a longer wavelength side of a wavelength band of the pulse light, with reference to a max peak wavelength of the pulse light, or after attenuating the optical power more on the longer wavelength side than the shorter wavelength side of the wavelength band of the pulse light, with reference to the max peak wavelength of the pulse light; and a first optical amplifier provided on the optical path between the semiconductor laser and the output end, the first optical amplifier inputting the pulse light from the semiconductor laser and amplifying the inputted pulse light.