| 主权项 |
1. An information acquiring device that acquires information of an object by irradiating the object with pulsed light emitted from a light source and detecting a light reflected or scattered by the object, a light passing through the object, or a light emitted from the object, the information acquiring device comprising:
a dividing section configured to divide pulsed light having a center wavelength of λc emitted from the light source, into lights for a plurality of optical paths; waveguides provided in each of the optical paths; a multiplexing section configured to multiplex lights output from the waveguides; and an information acquiring section configured to acquire information through detection of a light generated by applying the lights multiplexed by the multiplexing section to the object, wherein the waveguides provided in the optical paths have different zero dispersion wavelengths, the waveguides generate a plurality of wavelength-converted lights each having a center wavelength different from the center wavelength λc of the pulsed light, and the waveguides satisfy relations of β2>0 and β4<0 at the center wavelength of λc, where β2 is group velocity dispersion for the waveguides and β4 is a second derivative of the group velocity dispersion β2. |
