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US 6,389,198 B2Granted
Photonic crystal fiber system for sub-picosecond pulses
AssigneeSpectra-Physics Lasers, Inc.
InventorsJames D. Kafka, David E. Spence
Life of this patent
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Abstract
Fiber delivery systems are desirable to provide convenient delivery of an output beam from a laser system to a target distanced from the source. For ultra-short pulse lasers, a limiting factor in fiber delivery is the dispersion of the optical fiber. A fiber delivery system for ultra-short pulses that uses a photonic crystal fiber to Fprovide the appropriate dispersion is described.
Claims23
A system that delivers sub-picosecond pulses, comprising:
- a source that produces an output beam of sub-picosecond pulses at a wavelength no greater than 1.27 microns;
- and
- a hollow core photonic crystal fiber coupled to the source to receive the output beam.
A system that delivers sub-picosecond pulses, comprising:
- a source that produces an output beam;
- a hollow core photonic crystal fiber coupled to the source to receive the output beam, the hollow core photonic crystal fiber delivering pulses at the target with a pulsewidth less than 2 times a pulsewidth of the source;
- a first optical device positioned between the source and the hollow core fiber, the first optical element coupling the output beam into an input end of the hollow core fiber;
- and
- a second optical device positioned at an output end of the hollow core fiber that delivers the output beam to a selected target.
2 more elements
A system that delivers sub-picosecond pulses, comprising:
- a source that produces an output beam of sub-picosecond pulses;
- a hollow core photonic crystal fiber coupled to the source to receive the output beam having a value of dispersion between −20 and +20 ps/nm-km at the wavelength of source;
- a first optical device positioned between the source and the fiber, the first optical element coupling the output beam into an input end of the fiber;
- and
- a second optical device positioned at an output end of the fiber that delivers the output beam to a selected target.
2 more elements
Dependencies are inferred from the claim text.