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US 11,165,218 B2Granted
Low repetition rate infrared tunable femtosecond laser source
AssigneeMKS Instruments, Inc.
InventorsJames Kafka, Ching-Yuan Chien, Andrei Florean, Travis Petersen, Alan Petersen
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Abstract
The present application discloses a cavity dumped low repetition rate infrared tunable femtosecond laser source configured to produce pulses of 200 femtoseconds or less with a peak power of four megawatts or more for use in a variety of applications including multi-photon microscopy.
Claims37
A low repetition rate infrared tunable femtosecond laser source, comprising:
- a laser cavity having at least one curved mirror and at least one reflector positioned therein;
- at least one pulsed pump source in communication with the laser cavity, the pump source configured to emit at least one pump signal;
- at least one nonlinear optical crystal positioned within the laser cavity, the at least one nonlinear optical crystal configured to generate at least one intracavity signal when the at least one nonlinear optical crystal is pumped by the at least one pump signal;
- at least one modulator positioned within the laser cavity and configured to selectively modulate the at least one intracavity signal;
- at least one movable stage supporting at least one of the at least one curved mirror and at least one reflector, the at least one movable stage configured to selectively position at least one of the at least one curved mirror and the at least one reflector;
- and
- at least one output signal generated within and emitted from the laser cavity, the at least one output signal comprising at least a portion of the at least one intracavity signal, the at least one output signal selectable between a first wavelength range of 1200 nm and 1400 nm and at least a second wavelength range of 1600 nm and 1800 nm.
4 more elements
A low repetition rate infrared tunable femtosecond laser source, comprising:
- a laser cavity having at least one curved mirror and at least one reflector positioned therein;
- at least one pulsed pump source in communication with the laser cavity, the pump source configured to emit at least one pump signal;
- at least one nonlinear optical crystal positioned within the laser cavity, the at least one nonlinear optical crystal configured to generate at least one intracavity signal when the at least one nonlinear optical crystal is pumped by the at least one pump signal;
- at least one electro-optical modulator positioned within the laser cavity and configured to selectively modulate the at least one intracavity signal;
- and
- at least one output signal generated within and emitted from the laser cavity via the electro-optical modulator and at least one additional optical element positioned within the laser cavity, the at least one output signal comprising at least a portion of the at least one intracavity signal.
3 more elements
Dependencies are inferred from the claim text.