Suppressing relaxation oscillations for lithotripsy lasers
AssigneeBoston Scientific Scimed, Inc.
InventorsJian Zhang, Steven Yihlih Peng, Howard D. Simms, JR., Noah Lyden
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Abstract
Described are methods, systems, and techniques for a laser system controller, such as a controller for a laser used in a medical device. The controller can be configured to generate a pulse-width modulated control signal, the pulse-width modulated control signal comprising a plurality of electrical pulses separated by a temporal delay; and communicating the pulse width modulated control signal to an optical pump, wherein the optical pump, responsive to the pulse width modulated control signal, generates optical pump light and wherein a lasing medium, when exposed to the optical pump light, generates a laser beam.
Claims20
A laser system, comprising:
- a controller configured to send a pulse width modulated control signal to one or more optical pumps to cause the optical pumps to generate optical pump light;
- a lasing medium arranged to output a laser beam in response to the optical pump light;
- and
- a pump chamber configured to direct the optical pump light to the lasing medium,
- wherein the pulse width modulated control signal comprises a plurality of temporally spaced apart electrical pulse components configured to dampen a relaxation oscillation of the laser beam.
A method for a laser system controller, comprising:
- generating a pulse-width modulated control signal, the pulse-width modulated control signal comprising a plurality of electrical pulses separated by a temporal delay;
- and
- communicating the pulse width modulated control signal to an optical pump, wherein the optical pump, responsive to the pulse width modulated control signal, generates optical pump light and wherein a lasing medium, when exposed to the optical pump light, generates a laser beam.
A non-transitory computer-readable storage medium, the computer-readable storage medium includes instructions that, when executed by a computer, cause the computer to:
- generate a pulse-width modulated control signal, the pulse-width modulated control signal comprising a plurality of electrical pulses separated by a temporal delay;
- and
- communicate the pulse width modulated control signal to an optical pump, wherein the optical pump, responsive to the pulse width modulated control signal, generates optical pump light and wherein a lasing medium, when exposed to the optical pump light, generates a laser beam.
Dependencies are inferred from the claim text.