Laser based frequency standards and their applications
First Claim
1. A laser system comprising a modelocked fiber laser producing pulses with a peak pulse power, said laser system configured to provide an output of equidistant optical pulses at a repetition frequency, said laser system comprising a phase adjuster controlling the absolute phase of said optical pulses, said repetition frequency and said pulse phase further being matched to an external enhancement cavity disposed external to said modelocked fiber laser, such that the pulse peak power within the boundaries of said external enhancement cavity is substantially higher compared to the pulse peak power provided by said modelocked fiber laser.
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Abstract
Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.
50 Citations
21 Claims
- 1. A laser system comprising a modelocked fiber laser producing pulses with a peak pulse power, said laser system configured to provide an output of equidistant optical pulses at a repetition frequency, said laser system comprising a phase adjuster controlling the absolute phase of said optical pulses, said repetition frequency and said pulse phase further being matched to an external enhancement cavity disposed external to said modelocked fiber laser, such that the pulse peak power within the boundaries of said external enhancement cavity is substantially higher compared to the pulse peak power provided by said modelocked fiber laser.
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7. A source of phase stable optical pulses, comprising:
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a modelocked fiber laser; a fiber amplifier to amplify an output of said modelocked fiber laser; and a phase stabilizer configured such that a stable carrier phase slip is obtainable at the output of said fiber amplifier.
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8. A coherent fiber-based frequency comb source, comprising:
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a passively modelocked fiber laser comprising an optical cavity having intra-cavity components and a net cavity dispersion, wherein said cavity is configured in such a way that the net cavity dispersion is substantially lower than the dispersion of any intra-cavity component; a fiber amplifier receiving outputs from said passively modelocked fiber laser and generating amplified output pulses; a highly nonlinear waveguide based on a crystalline material, said waveguide receiving amplified output pulses from said fiber amplifier and generating a coherent super-continuum therewith; an f-2f interferometer to measure the carrier envelope offset frequency of said fiber comb source. - View Dependent Claims (9, 10, 11)
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12. A coherent fiber-based frequency comb source, comprising:
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a passively modelocked fiber laser; a fiber amplifier receiving outputs from said passively modelocked fiber laser and generating amplified output pulses; a highly nonlinear waveguide based on a poled crystalline material, said waveguide receiving amplified output pulses from said fiber amplifier and generating a super-continuum therewith, wherein said poled crystalline material is periodically poled with a variation of the poling period along the crystal length. - View Dependent Claims (13, 14)
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15. A coherent fiber-based frequency comb source, comprising:
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a passively modelocked fiber laser generating outputs at a repetition rate greater than 110 MHz, said passively mode locked fiber laser comprising an optical cavity having intra-cavity components and a net cavity dispersion, wherein said cavity is configured in such a way that the net cavity dispersion is substantially lower than the dispersion of any intra-cavity component; a fiber amplifier receiving outputs from said passively modelocked fiber laser and generating amplified output pulses; a highly nonlinear waveguide, said waveguide receiving amplified output pulses from said fiber amplifier and generating a coherent super-continuum therewith; and a stabilizer for a carrier envelope offset frequency of said fiber comb source. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification