US 11,791,602 B2
Q-switched laser system
Salman Noach, Jerusalem (IL); Uzziel Sheintop, Haggay (IL); and Eytan Moshe Perez, Jerusalem (IL)
Assigned to JERUSALEM COLLEGE TECHNOLOGY, Jerusalem (IL)
Appl. No. 17/57,072
Filed by JERUSALEM COLLEGE OF TECHNOLOGY, Jerusalem (IL)
PCT Filed May 22, 2019, PCT No. PCT/IL2019/050581
§ 371(c)(1), (2) Date Nov. 19, 2020,
PCT Pub. No. WO2019/224822, PCT Pub. Date Nov. 28, 2019.
Claims priority of provisional application 62/850,743, filed on May 21, 2019.
Claims priority of application No. 259535 (IL), filed on May 22, 2018.
Prior Publication US 2021/0167570 A1, Jun. 3, 2021
Int. Cl. H01S 3/117 (2006.01); H01S 3/1115 (2023.01); H01S 3/08 (2023.01); H01S 3/094 (2006.01); H01S 3/0941 (2006.01); H01S 3/106 (2006.01); H01S 3/16 (2006.01)
CPC H01S 3/1115 (2013.01) [H01S 3/08059 (2013.01); H01S 3/09415 (2013.01); H01S 3/094053 (2013.01); H01S 3/1062 (2013.01); H01S 3/117 (2013.01); H01S 3/1616 (2013.01); H01S 3/1638 (2013.01); H01S 3/1653 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A laser system,
comprising:
a laser cavity;
a gain medium positioned within the laser cavity;
a pump source optically coupled to the gain medium;
an input mirror positioned at a first end of the laser cavity;
an output coupler positioned at a second end of the laser cavity; a first etalon having a thickness of between 10 to 50 μm positioned within the laser cavity and configured to tune the spectral range of the laser to at least 20 nm;
and a q-switching element positioned within the laser cavity;
wherein:
the laser system is configured to provide a pulsed laser beam at a selected wavelength ranging of 1700 to 3000 nm with a tunable spectral range of at least 20 nm;
the q-switching element provides a pulse switching of a laser beam;
and wherein the gain medium, the pump source, the input mirror, the output coupler, the first etalon, and the q-switching element are at a light-pass of the pulsed laser beam.