Picosecond Optical Radiation Systems and Methods of Use
AssigneeCynosure, Inc.
InventorsMirko Georgiev Mirkov, Rafael Armando Sierra
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Abstract
Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.
Claims34
-55. (canceled)
An apparatus for delivery of pulsed treatment radiation comprising:
- a pump radiation source generating pumping pulses at a first wavelength,
- a wavelength-shifting oscillator defining a resonant cavity, and
- an optical amplifier, wherein the oscillator output wavelength varies in response to controlled temperature changes, wherein the oscillator temperature is controlled to emit a maximum energy amplified output pulse from the optical amplifier at a second wavelength.
A method of delivering pulsed treatment radiation comprising:
- generating pumping pulses, using a pump radiation source, wherein one or more pumping pulses are at a first wavelength and a first pulse duration;
- transmitting the pumping pulses to a wavelength-shifting oscillator and then from the oscillator to an optical amplifier;
- varying the temperature of the oscillator such that the oscillator output wavelength varies;
- and
- controlling the temperature of the oscillator to emit a maximum energy output from the optical amplifier;
- and
- emitting pulsed treatment radiation at a second wavelength from the optical amplifier.
Dependencies are inferred from the claim text.