SHORT OPTICAL PULSE GENERATOR, TERAHERTZ WAVE GENERATOR, CAMERA, IMAGING APPARATUS, AND MEASUREMENT APPARATUS
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Dec 17, 2014
filing date -
Dec 18, 2013
priority date (Note) -
Abandoned
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Abstract
A short optical pulse generator includes: an optical pulse generation unit which generates an optical pulse; a frequency chirping unit which chirps the frequency of the optical pulse; and a group velocity dispersion unit which produces a group velocity difference according to wavelength in the optical pulse chirped by the frequency chirping unit, wherein the group velocity dispersion unit includes a group velocity dispersion medium on which the optical pulse chirped by the frequency chirping unit is incident, and a first reflection mirror and a second reflection mirror which are provided with the group velocity dispersion medium sandwiched therebetween, and the optical pulse incident on the group velocity dispersion medium is reflected by the first reflection mirror and the second reflection mirror multiple times and travels in the group velocity dispersion medium.
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