Patent ID: 11914267
Assignee: POLITECNICO DI MILANO
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A laser source comprising:
a first laser device configured to generate a first laser beam having a first wavelength;
a second laser device configured to generate a second laser beam having a second wavelength, which is different from the first wavelength; and
a non-linear crystal configured to receive simultaneously the first and second laser beams and to generate a third laser beam that has a third wavelength, which is larger than each of the first and second wavelengths,
wherein the non-linear crystal has a length and a width, and a variable poling period is distributed across the width so that the third wavelength varies within a given wavelength range based on an incident position of the first and second laser beams along the width of the non-linear crystal, and
wherein the given wavelength range is between 11.56 and 15 μm.