US 12,222,517 B2
Laser system delivering ultra-short pulses along multiple beam delivery paths
Matthew David Treiser, Mount Vernon, NY (US)
Filed by Matthew David Treiser, Mount Vernon, NY (US)
Filed on Oct. 9, 2023, as Appl. No. 18/377,969.
Application 18/377,969 is a continuation of application No. 17/831,216, filed on Jun. 2, 2022, granted, now 11,782,283.
Application 17/831,216 is a continuation of application No. 16/564,307, filed on Sep. 9, 2019, granted, now 11,353,714, issued on Jun. 7, 2022.
Claims priority of provisional application 62/728,927, filed on Sep. 10, 2018.
Prior Publication US 2024/0036337 A1, Feb. 1, 2024
Int. Cl. G02B 27/09 (2006.01); A61F 9/008 (2006.01); G02B 27/00 (2006.01); G02B 27/10 (2006.01)
CPC G02B 27/09 (2013.01) [A61F 9/008 (2013.01); A61F 9/00804 (2013.01); G02B 27/0025 (2013.01); G02B 27/10 (2013.01); A61F 9/0084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laser system comprising:
a laser source generating a laser beam comprising ultra-short pulses;
a laser delivery assembly optically coupled to the laser source to receive the laser beam, the laser delivery assembly comprising:
a beam splitter configured to split the laser beam between a first beam delivery path and a second beam delivery path;
a first focusing lens optically coupled to the beam splitter and positioned within the first beam delivery path, the first focusing lens configured to focus the laser beam from the first beam delivery path to a focal point on a predefined plane; and
a second focusing lens optically coupled to the beam splitter and positioned within the second beam delivery path, the second focusing lens configured to focus the laser beam from the second beam delivery path to the focal point on the predefined plane, the second focusing lens being further configured for focus independently relative to the focus of the first focusing lens,
wherein the first beam delivery path intersects the predefined plane at a first angle, the second beam delivery path intersects the predefined plane at a second angle, and a first pulse from the first beam delivery path and a second pulse from the second beam delivery path are coincident at the focal point, and
wherein the second focusing lens focuses light relative to the focus of the first focusing lens independently to provide an avoidance of laser energy excitement by the first pulse and the second pulse in at least one of: above the focal point, or above the predefined plane.