Optical dual-comb source apparatuses including optical microresonator
First Claim
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1. An optical dual-comb source apparatus comprising:
- laser light source configured to output first laser light and second laser light; and
an optical microresonator comprising a nonlinear material with a refractive index which is variable based on a light intensity, wherein the optical microresonator has a plurality of different resonance modes,whereinthe optical microresonator is configured to interact with the first laser light and the second laser light and thereby generate a first optical frequency comb and a second optical frequency comb, the second optical frequency comb having a mode interval different from a mode interval of the first optical frequency comb, andthe first laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the first optical frequency comb and the second laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb.
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Abstract
Provided is an optical source apparatus that may generate two different optical frequency combs. The optical source apparatus includes an optical resonator and a continuous wave laser emitting laser light having a spectrum component corresponding to a resonance frequency of the optical resonator, and the optical resonator is configured to generate a first frequency comb and a second frequency comb having different modes by interacting with the laser light emitted by the continuous wave laser.
30 Citations
25 Claims
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1. An optical dual-comb source apparatus comprising:
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laser light source configured to output first laser light and second laser light; and an optical microresonator comprising a nonlinear material with a refractive index which is variable based on a light intensity, wherein the optical microresonator has a plurality of different resonance modes, wherein the optical microresonator is configured to interact with the first laser light and the second laser light and thereby generate a first optical frequency comb and a second optical frequency comb, the second optical frequency comb having a mode interval different from a mode interval of the first optical frequency comb, and the first laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the first optical frequency comb and the second laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical dual-comb source apparatus comprising:
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laser light source configured to output first laser light and second laser light; and a first optical microresonator and a second optical microresonator, each comprising a nonlinear material with a refractive index which is variable based on a light intensity, wherein the first optical microresonator and the second optical microresonator are each configured to interact with the first laser light and the second laser light and thereby generate a first optical frequency comb and a second optical frequency comb having different mode intervals, and the first laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the first optical frequency comb and the second laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An optical measurement apparatus comprising:
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an optical dual-comb source apparatus configured to generate a first optical frequency comb and a second optical frequency comb, wherein a mode interval of the first optical frequency comb is different from a mode interval of the second optical frequency comb; a first beam splitter configured to split the first optical frequency comb into a probe frequency comb and a reference frequency comb; a second beam splitter configured to split the second optical frequency comb into two second optical frequency combs; a first beam coupler configured to generate a third optical frequency comb by coupling the probe frequency comb, which is transmitted through or reflected or scattered by a measurement target, to a first one of the second optical frequency combs; a second beam coupler configured to generate a fourth optical frequency comb by coupling the reference frequency comb to a second one of the split second optical frequency combs; a first photodetector configured to measure the third optical frequency comb; and a second photodetector configured to measure the fourth optical frequency comb, wherein the optical dual-comb source apparatus comprises; laser light source configured to provide first laser light and second laser light; and an optical microresonator comprising a nonlinear material with a refractive index which is variable based on a light intensity, wherein the optical microresonator has a plurality of different resonance modes, wherein the optical microresonator is configured to interact with the first laser light and the second laser light and thereby generate a first optical frequency comb and a second optical frequency comb, wherein a mode interval of the first optical frequency comb is different that a mode interval of the second optical frequency comb, and the first laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the first optical frequency comb and the second laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb.
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24. An optical measurement apparatus comprising:
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an optical dual-comb source apparatus configured to generate a first optical frequency comb and a second optical frequency comb, wherein the first optical frequency comb has a mode interval different from a mode interval of the second optical frequency comb; a first beam splitter configured to split the first optical frequency comb into a probe frequency comb and a reference frequency comb; a first beam coupler configured to couple the probe frequency comb, which is transmitted through or reflected or scattered by a measurement target, to the reference frequency comb; a second beam coupler configured to generate a third optical frequency comb by coupling the probe frequency comb and the reference frequency comb coupled by the first beam coupler to the second optical frequency comb; and a photodetector configured to measure the third optical frequency comb, wherein the optical dual-comb source apparatus comprises; laser light source configured to output first laser light and second laser light; and an optical microresonator comprising a nonlinear material with a refractive index which is variable based on a light intensity, wherein the optical microresonator has a plurality of different resonance modes, wherein the optical microresonator is configured to generate the first optical frequency comb and the second optical frequency comb by interacting with the first laser light and the second laser light, and the first laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the first optical frequency comb and the second laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb.
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25. An optical measurement apparatus comprising:
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an optical dual-comb source apparatus configured to generate a first optical frequency comb and a second optical frequency comb, wherein a mode interval of the first optical frequency comb is different than a mode interval of the second optical frequency comb; a beam coupler configured to couple the first optical frequency comb and the second optical frequency comb to generate a frequency comb; a beam splitter configured to split the generated frequency comb into a probe frequency comb and a reference frequency comb; a first photodetector configured to measure the probe frequency comb that is transmitted through or reflected or scattered by a measurement target; and a second photodetector configured to measure the reference frequency comb, wherein the optical dual-comb source apparatus comprises; laser light source configured to provide a first laser light and a second laser light; and an optical microresonator comprising a nonlinear material with a refractive index which varies based on a light intensity, wherein the optical microresonator has a plurality of different resonance modes, wherein the optical microresonator is configured to generate the first optical frequency comb and the second optical frequency comb by interacting with the first laser light and the second laser light, and the first laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the first optical frequency comb and the second laser light has a spectrum component corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb.
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Specification