US 11,914,267 B2
Tunable mid-infrared laser source and method
Mohammad Khaled Shakfa, Thuwal (SA); Marco Lamperti, Lecco (IT); Marco Marangoni, Lecco (IT); and Aamir Farooq, Thuwal (SA)
Assigned to KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY, Thuwal (SA); and POLITECNICO DI MILANO, Milan (IT)
Filed by KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY, Thuwal (SA); and POLITECNICO DI MILANO, Milan (IT)
Filed on May 4, 2021, as Appl. No. 17/307,087.
Claims priority of provisional application 63/020,132, filed on May 5, 2020.
Prior Publication US 2021/0349371 A1, Nov. 11, 2021
Int. Cl. G02F 1/35 (2006.01); G02F 1/355 (2006.01); H01S 5/00 (2006.01); H01S 3/00 (2006.01); H01S 3/223 (2006.01); H01S 5/14 (2006.01); G01J 3/10 (2006.01); H01S 5/34 (2006.01)
CPC G02F 1/3505 (2021.01) [G01J 3/108 (2013.01); G02F 1/3503 (2021.01); G02F 1/3551 (2013.01); G02F 1/3556 (2013.01); G02F 1/3558 (2013.01); H01S 3/0092 (2013.01); H01S 3/2232 (2013.01); H01S 5/0092 (2013.01); H01S 5/14 (2013.01); H01S 5/3402 (2013.01); G02F 2202/101 (2013.01); G02F 2203/11 (2013.01)] 19 Claims
OG exemplary drawing
 
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.