US 12,438,331 B2
System and method for generating high-power ultra-short pulses in lasers
Juan Diego Ania Castañón, Madrid (ES); and Francesca Gallazzi, Madrid (ES)
Assigned to CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS, Madrid (ES)
Appl. No. 17/624,740
Filed by CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS, Madrid (ES)
PCT Filed Jul. 3, 2020, PCT No. PCT/ES2020/070430
§ 371(c)(1), (2) Date Jan. 4, 2022,
PCT Pub. No. WO2021/001591, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. ES201930623 (ES), filed on Jul. 4, 2019.
Prior Publication US 2022/0247144 A1, Aug. 4, 2022
Int. Cl. H01S 3/067 (2006.01); H01S 3/10 (2006.01); H01S 3/30 (2006.01)
CPC H01S 3/06791 (2013.01) [H01S 3/06725 (2013.01); H01S 3/10015 (2013.01); H01S 3/302 (2013.01); H01S 2301/085 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A laser having a laser cavity comprising: a regulator of a pulsed signal selected from a modulator or a saturable absorber and comprising a system for generating pulses having a peak power greater than 0.6 megawatts and a duration of less than 1 picosecond, located within the laser cavity and positioned after the regulator with respect to the direction of light propagation, the laser comprising:
an adjustable optical attenuator;
an optical guide through which the signal is transmitted and configured to increase the length of the laser cavity, the optical guide positioned after the optical attenuator with respect to the direction of light propagation; and
a distributed amplification device based on the Raman effect, located within the optical guide and configured to regulate intensity of the signal that propagates through the optical guide;
wherein the optical attenuator is configured to adjust the intensity of the pulsed signal prior to entry into the optical guide such that it coincides with that required for the pulsed signal to enter the optical guide as a signal that generates solitons.