Adaptive boost control for gating picosecond pulsed fiber lasers
AssigneenLIGHT, Inc.
InventorsTyson Lowder, Timothy N. Kutscha
Life of this patent
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Abstract
A method includes applying a boost pump signal to a pump laser of a laser system based on a preceding off duration associated with the laser system, and applying a forward pump signal to the pump laser. A laser system includes a seed laser situated to generate seed optical pulses, a pump laser situated to generate pump optical radiation, a fiber amplifier situated to receive the pump optical radiation and the seed optical pulses, and a controller situated to select a pump boost duration or pump boost magnitude based on an off duration associated with the laser system.
Claims25
A method, comprising:
- detecting an off duration associated with a laser system;
- applying a boost pump signal to a pump laser of the laser system based on the preceding off duration;
- and
- applying a forward pump signal to the pump laser.
A method, comprising:
- determining a duration of a boost pump signal for a pump laser of a laser system based on stored pump signal values associated with a plurality of off durations;
- applying the boost pump signal to the pump laser based on a preceding off duration associated with the laser system;
- and
- applying a forward pump signal to the pump laser.
A method, comprising:
- determining a magnitude of a boost pump signal for a pump laser of a laser system based on stored pump signal magnitudes associated with a plurality of off durations;
- applying the boost pump signal to the pump laser based on a preceding off duration associated with the laser system;
- and
- applying a forward pump signal to the pump laser.
A method, comprising:
- determining a duration of a boost pump signal for a pump laser of a laser system based on stored pump signal durations or gate signal durations;
- applying the boost pump signal to the pump laser based on a preceding off duration associated with the laser system;
- and
- applying a forward pump signal to the pump laser.
A method, comprising:
- determining a boost pump signal duration for a pump laser of a laser system before receiving a gate signal;
- applying the boost pump signal to the pump laser based on a preceding off duration associated with the laser system;
- and
- applying a forward pump signal to the pump laser.
A laser system, comprising:
- a seed laser situated to generate seed optical pulses;
- a pump laser situated to generate pump optical radiation;
- a fiber amplifier situated to receive the pump optical radiation and the seed optical pulses;
- and
- a controller situated to select a pump boost duration or pump boost magnitude based on an off duration associated with the laser system.
A method, comprising:
- detecting an off duration associated with termination of a first gating signal and initiation of a second gating signal;
- applying a first pump laser current in response to the second pulsed gating signal, the first pump laser current having a duration associated with the detected off duration;
- and
- switching the first pump laser current to a second pump laser current upon termination of the first pump laser current.
Dependencies are inferred from the claim text.