Optical dual-comb source apparatuses including optical microresonator

Patent metadata

Field	Value
Publication number	US-10224688-B2
Application number	US-201815870322-A
Country	US
Kind code	B2
Filing date	Jan 12, 2018
Priority date	May 31, 2017
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

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.

First claim

What is claimed is:

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,
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.

2. The optical dual-comb source apparatus of claim 1 , wherein the optical microresonator is disk-shaped and has a plurality of different resonance modes according to a depth from a surface of the optical microresonator.

3. The optical dual-comb source apparatus of claim 1 , wherein the laser light source comprises a continuous wave laser having a multimode in which at least two transverse modes or at least two longitudinal modes of light are simultaneously emitted.

4. The optical dual-comb source apparatus of claim 3 , further comprising an input/output coupler configured to input the first laser light and the second laser light emitted by the continuous wave laser into the optical microresonator and configured to output the first optical frequency comb and the second optical frequency comb generated by the optical microresonator.

5. The optical dual-comb source apparatus of claim 1 , wherein the laser light source comprises:
a continuous wave laser configured to emit the first laser light; and
an electrooptical modulator configured to modulate the first laser light to generate an optical sideband corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb.

6. The optical dual-comb source apparatus of claim 1 , wherein the laser light source comprises:
a first continuous wave laser configured to emit the first laser light; and
a second continuous wave laser configured to emit the second laser light.

7. The optical dual-comb source apparatus of claim 6 , further comprising:
a beam coupler configured to couple the first laser light and the second laser light to propagate a coupling result thereof through an optical path; and
an input/output coupler configured to input the first laser light and the second laser light into the optical microresonator and to output the first optical frequency comb and the second optical frequency comb generated by the optical microresonator.

8. The optical dual-comb source apparatus of claim 6 , further comprising:
an input/output coupler configured to input the first laser light to the optical microresonator and to output the first optical frequency comb and the second optical frequency comb generated by the optical microresonator; and
an input coupler configured to input the second laser light into the optical microresonator.

9. The optical dual-comb source apparatus of claim 6 , further comprising:
a first input/output coupler configured to input the first laser light into the optical microresonator and to output the first optical frequency comb generated by the optical microresonator; and
a second input/output coupler configured to input the second laser light into the optical microresonator and to output the second optical frequency comb generated by the optical microresonator.

10. An optical dual-comb source apparatus comprising:
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.

11. The optical dual-comb source apparatus of claim 10 , wherein the laser light source comprises a continuous wave laser having a multimode in which at least two transverse modes or at least two longitudinal modes of light are simultaneously emitted.

12. The optical dual-comb source apparatus of claim 11 , further comprising an input/output coupler configured to input the first laser light and the second laser light emitted by the continuous wave laser into each of the first optical microresonator and the second optical microresonator and to output the first optical frequency comb and the second optical frequency comb generated by the first and second optical microresonators.

13. The optical dual-comb source apparatus of claim 10 , wherein the laser light source comprises:
a continuous wave laser configured to emit the first laser light; and
an electrooptical modulator configured to modulate the first laser light to generate an optical sideband corresponding to a resonance frequency of a resonance mode related to the second optical frequency comb.

14. The optical dual-comb source apparatus of claim 10 , wherein the first optical microresonator and the second optical microresonator each comprise a disk-shaped resonator having a plurality of different resonance modes according to a depth from a surface of the respective optical microresonator.

15. The optical dual-comb source apparatus of claim 10 , wherein
the first optical microresonator has a resonance mode related to the first optical frequency comb,
the second optical microresonator has a resonance mode related to the second optical frequency comb,
the first optical microresonator and the second optical microresonator are each disk-shaped;
the first optical microresonator has a diameter that is different from a diameter of the second optical microresonator.

16. The optical dual-comb source apparatus of claim 15 , wherein
the laser light source comprises a continuous wave laser having a multimode in which at least two transverse modes or at least two longitudinal modes of laser light are simultaneously emitted, and
the optical dual-comb source apparatus further comprises:
an input coupler configured to input the first laser light and the second laser light emitted by the continuous wave laser into each of the first and second optical microresonators;
a first output coupler configured to output the first optical frequency comb generated by the first optical microresonator; and
a second output coupler configured to output the second optical frequency comb generated by the second optical microresonator.

17. The optical dual-comb source apparatus of claim 15 , wherein
the laser light source comprises a continuous wave laser having a multimode in which at least two transverse modes or at least two longitudinal modes of laser light are simultaneously emit

Assignees

• Samsung Electronics Co Ltd
• International Center For Quantum Optics & Quantum Tech Limited Liability Company

Inventors

• Koptyaev Sergey Nikolaevich
• Lihachev Grigoriy Vasil'Evich
• Pavlov Nikolay Genad'Evich
• SHCHEKIN Alexey Andreevich
• Bilenko Igor Antonovich
• Riabko Maxim Vladimirovich
• Gorodetsky Mikhael Leonidovich
• Polonsky Stanislav Vladimirovich
• Voloshin Andrey Sergeevich
• Lantsov Alexey Dmitrievich
• MEDVEDEV Anton Sergeevich
• Lobanov Valery Evgenievich

Classifications

• H01S3/083

  Ring lasers {(fibre ring lasers H01S3/06791)} · CPC title

• G02F1/35 Primary

  Non-linear optics · CPC title

• H01S5/4087

  emitting more than one wavelength · CPC title

• G02F2203/15

  involving resonance effects, e.g. resonantly enhanced interaction · CPC title

• H01S5/005

  Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping (H01S5/026, H01S5/18388 take precedence) · CPC title