| abstract |
The invention relates to a device comprising:a laser source emitting a first beam with a central wavelength λ1 lying between 1010 nm and 1050 nm,a spectral supercontinuum generator downstream of the laser source, generating a second beam with a central wavelength λ2 lying between 1670 nm and 1730 nm from a part of the first beam,an optical parametric amplification system downstream of the spectral supercontinuum generator, generating a third beam with a central wavelength λ3 lying between 2540 nm and 2690 nm from at least a part of the second beam and a part of the first beam, anda second harmonic generator downstream of the optical parametric amplification system, the second harmonic generator generating a fourth beam with a central wavelength λ4 lying between 1270 nm and 1345 nm from at least a part of the third beam. |