CN113009630A - Optical frequency comb generation device and method based on nonlinear optical loop mirror - Google Patents
Optical frequency comb generation device and method based on nonlinear optical loop mirror Download PDFInfo
- Publication number
- CN113009630A CN113009630A CN202110207022.5A CN202110207022A CN113009630A CN 113009630 A CN113009630 A CN 113009630A CN 202110207022 A CN202110207022 A CN 202110207022A CN 113009630 A CN113009630 A CN 113009630A
- Authority
- CN
- China
- Prior art keywords
- optical
- signal
- phase modulator
- polarization controller
- coupler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/365—Non-linear optics in an optical waveguide structure
Abstract
The invention discloses an optical frequency comb generating device and method based on a nonlinear optical loop mirror, which comprises a semiconductor laser, an optical isolator, an optical coupler, a polarization controller, a phase modulator and a light delay line, wherein the semiconductor laser is used for outputting laser signals, the input end of the optical isolator is connected with the semiconductor laser, the optical coupler is connected with the output end of the optical isolator, the polarization controller comprises a first polarization controller and a second polarization controller, the first polarization controller is connected with the optical coupler, the phase modulator is connected with the optical coupler through the first polarization controller, the light delay line comprises a first end of the light delay line and a second end of the light delay line, the first end of the light delay line is connected with the optical coupler, the second end of the light delay line is connected with the phase modulator through the second polarization controller, the device has simple structure and low manufacturing cost, the method is easy to realize, and the flatness of the comb teeth of the optical frequency comb is controlled within 1 dB.
Description
Technical Field
The invention belongs to the field of Optical Frequency Comb (OFC) generation in the field of microwave photons, and relates to an optical frequency comb generation device and method based on a nonlinear optical loop mirror.
Background
Microwave photonics refers to the mutual influence and interaction between microwave signals and optical signals, and simultaneously exerts the advantages of flexibility of microwave signals and high bandwidth of optical fiber communication. An important application of microwave photonics is transmission and data processing of microwave carrier signals by using optical fibers in wireless communication, and the microwave photonics can also be widely applied to the fields of military communication, high-speed data processing and the like.
An Optical Frequency Comb (OFC) is a laser light source with comb spectra with multiple wavelengths and equal frequency intervals, and is widely applied to the fields of multi-wavelength communication, ultra-low noise microwave generation, laser ranging, spectroscopy and the like. At present, one of the methods for generating an optical frequency comb is to use an intensity modulator or a cascaded intensity modulator and a phase modulator for generation, but in the prior art, the optical frequency comb interval is unstable, the device is complex, and the implementation is not easy, so that a generation device of an optical frequency comb with a simple structure is urgently needed to meet the existing technical requirements.
Disclosure of Invention
In order to solve the above technical problem, the present invention discloses an optical frequency comb generating device based on a nonlinear optical loop mirror, comprising:
a semiconductor laser for outputting a laser signal;
the input end of the optical isolator is connected with the semiconductor laser;
the optical coupler is connected with the output end of the optical isolator;
the polarization controller comprises a first polarization controller and a second polarization controller, and the first polarization controller is connected with the optical coupler;
the phase modulator is connected with the optical coupler through the first polarization controller;
and the optical delay line comprises a first end and a second end, the first end is connected with the optical coupler, and the second end is connected with the phase modulator through the second polarization controller.
Preferably, the optical coupler is a 2 × 2 optical coupler;
the splitting ratio of the optical coupler is 50: 50;
the optical coupler comprises a first input port, a second input port, a first output port and a second output port;
the first input port is connected with the optical isolator;
the first output port is connected with the first polarization controller;
the second output port is connected with the first end of the optical delay line;
the second input port is used for observing the optical frequency comb generated by the optical frequency comb generating device through an instrument.
Preferably, the instrument is a spectrometer, which is connected to the second input port.
Preferably, the phase modulator is a wideband phase modulator.
Preferably, the phase modulator further comprises phase modulator driving means;
the phase modulator driving means comprises a phase modulator driving circuit,
a microwave source for generating a radio frequency signal;
the frequency divider is connected with the microwave source;
the adjustable attenuator is connected with the microwave source through the frequency divider;
the input end of the microwave amplifier is respectively connected with the microwave source and the adjustable attenuator;
the output end of the microwave amplifier is connected with the phase modulator.
Preferably, the phase modulator driving device further comprises a microwave coupler for dividing the output signal emitted by the microwave source into two paths;
the microwave source is connected with the microwave amplifier and the frequency divider through the microwave coupler.
Preferably, the frequency of the microwave source is 20 GHz;
the frequency divider is a halving frequency divider;
the output signal frequency of the microwave amplifier is greater than 10 dBm.
An optical frequency comb generation method based on a nonlinear optical loop mirror comprises the following steps:
s1, starting a microwave source to emit a first output signal, dividing the first output signal into a first path of signal and a second path of signal through a microwave coupler, enabling the first path of signal to enter an adjustable attenuator through a frequency divider to generate a frequency division signal, combining the second path of signal and the frequency division signal into a microwave amplifier input signal, amplifying the microwave amplifier input signal to be more than 10dBm through the microwave amplifier, and obtaining a phase modulator driving signal for driving the phase modulator;
s2, starting a semiconductor laser to emit a second output signal, enabling the second output signal to enter an optical coupler through an optical isolator, enabling the optical coupler to transmit the second output signal to a first polarization controller through a first output port to generate a first polarized optical signal, enabling the first polarized optical signal to enter a phase modulator to be subjected to signal modulation to obtain a first modulated optical signal, and transmitting the first modulated optical signal to the optical coupler through a second polarization controller and an optical delay line;
s3, a second output signal enters an optical delay line through a second output port of the optical coupler, enters a second polarization controller after being processed by the optical delay line, generates a second polarized optical signal, enters the phase modulator for signal modulation, obtains a second modulated optical signal, and is transmitted to the optical coupler through the first polarization controller;
s4, based on the optical coupler, obtaining the optical frequency comb through the first modulation optical signal and the second modulation optical signal, and observing the flatness of comb teeth of the optical frequency comb based on the second input port through the spectrometer.
Preferably, the frequency of the first output signal is 20 GHz.
Preferably, the flatness is 0.84 dB.
The positive progress effects of the invention are as follows:
the invention provides an optical frequency comb generation device and method based on a nonlinear optical ring mirror, which control the flatness of comb teeth of an optical frequency comb within 1 dB.
Drawings
FIG. 1 is a system diagram according to an embodiment of the present invention;
FIG. 2 is a diagram of an optical frequency comb spectrum according to an embodiment of the present invention,
wherein, 1 is a first input port, 2 is a first output port, 3 is a second input port, and 4 is a second output port.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
The invention discloses an optical frequency comb generating device based on a nonlinear optical loop mirror, which comprises:
a semiconductor laser for outputting a laser signal; the input end of the optical isolator is connected with the semiconductor laser; the optical coupler is connected with the output end of the optical isolator; the polarization controller comprises a first polarization controller and a second polarization controller, and the first polarization controller is connected with the optical coupler; the phase modulator is connected with the optical coupler through the first polarization controller; and the optical delay line comprises a first end and a second end, the first end is connected with the optical coupler, and the second end is connected with the phase modulator through the second polarization controller.
The optical coupler is a 2 x 2 optical coupler; the splitting ratio of the optical coupler is 50: 50; the optical coupler comprises a first input port 1, a second input port 3, a first output port 2 and a second output port 4; the first input port 1 is connected with an optical isolator; the first output port 2 is connected with a first polarization controller; the second output port 4 is connected with the first end of the optical delay line; the second input port 3 is used for observing the optical frequency comb generated by the optical frequency comb generating device through the instrument.
The instrument is a spectrometer, and the spectrometer is connected with the second input port.
The phase modulator is a wideband phase modulator.
The phase modulator also comprises phase modulator driving means; the phase modulator driving device comprises a microwave source for generating a radio frequency signal; the frequency divider is connected with the microwave source; the adjustable attenuator is connected with the microwave source through the frequency divider; the input end of the microwave amplifier is respectively connected with the microwave source and the adjustable attenuator; the output end of the microwave amplifier is connected with the phase modulator.
The phase modulator driving device also comprises a microwave coupler used for dividing output signals emitted by the microwave source into two paths; the microwave source is connected with the microwave amplifier and the frequency divider through the microwave coupler.
The frequency of the microwave source is 20 GHz; the frequency divider is a halving frequency divider; the output signal frequency of the microwave amplifier is greater than 10 dBm.
An optical frequency comb generation method based on a nonlinear optical loop mirror comprises the following steps:
s1, starting a microwave source to emit a first output signal, dividing the first output signal into a first path of signal and a second path of signal through a microwave coupler, enabling the first path of signal to enter an adjustable attenuator through a frequency divider to generate a frequency division signal, combining the second path of signal and the frequency division signal into a microwave amplifier input signal, amplifying the microwave amplifier input signal to be more than 10dBm through the microwave amplifier, and obtaining a phase modulator driving signal for driving the phase modulator;
s2, starting a semiconductor laser to emit a second output signal, enabling the second output signal to enter an optical coupler through an optical isolator, enabling the optical coupler to transmit the second output signal to a first polarization controller through a first output port 2 to generate a first polarized optical signal, enabling the first polarized optical signal to enter a phase modulator to be subjected to signal modulation to obtain a first modulated optical signal, and transmitting the first modulated optical signal to the optical coupler through a second polarization controller and an optical delay line;
s3, a second output signal enters an optical delay line through a second output port 4 of the optical coupler, enters a second polarization controller after being processed by the optical delay line, generates a second polarized optical signal, enters the phase modulator for signal modulation, obtains a second modulated optical signal, and is transmitted to the optical coupler through the first polarization controller;
s4, based on the optical coupler, obtaining the optical frequency comb through the first modulation optical signal and the second modulation optical signal, and observing the flatness of comb teeth of the optical frequency comb based on the second input port 3 through the spectrometer.
The frequency of the first output signal is 20 GHz.
The flatness was 0.84 dB.
Example 1: as shown in fig. 1: the device comprises a semiconductor laser, an optical isolator, a 2 x 2 optical coupler with a splitting ratio of 50:50, a broadband phase modulator, two polarization controllers with the same parameters (respectively marked as PC1 and PC2), an optical delay line, a microwave source (20G), a frequency divider (2 frequency division), a microwave amplifier and an adjustable attenuator. Wherein the microwave source, the frequency divider, the microwave amplifier and the adjustable attenuator are used for generating radio frequency signals containing 10G and 20G so as to drive the phase modulator.
The semiconductor laser is connected with the input end of the optical isolator, and the output end of the optical isolator is connected with one input end (port 1) of the 2 multiplied by 2 optical coupler;
one output end (port 2) of the 2 x 2 optical coupler is connected with the input end of the polarization controller PC1, the output end of the polarization controller PC1 is connected with the input end of the phase modulator, the output end of the phase modulator is connected with the input end of the polarization controller PC2, the output end of the polarization controller PC2 is connected with the input end of the optical delay line, the output end of the optical delay line is connected with the other output end (port 3) of the 2 x 2 optical coupler, the nonlinear optical loop mirror is formed by the above steps, a radio frequency signal containing fundamental frequency and harmonic thereof is applied to a radio frequency port of the phase modulator, the continuous wave optical modulator is used for modulating a continuous wave optical signal generated by a semiconductor laser, wherein a radio frequency signal comprises a fundamental frequency and a plurality of frequency components such as harmonics (a first harmonic, a second harmonic or higher harmonics) thereof, the power of each frequency component of the radio frequency signal can drive the phase modulator, and the power of each frequency component can be accurately adjusted;
the frequency of the microwave source is 20GHz, the microwave source is divided into two paths through a microwave coupler after being output, one path divides the frequency into 10GHz through a frequency divider (2 frequency division), an adjustable attenuator is added later, and the other path is not changed; combining two paths of signals into one path, amplifying the signals to be more than 10dBm by using a microwave amplifier, and driving a phase modulator, wherein the power of a frequency component is accurately adjustable through a microwave source and an adjustable attenuator;
the other input (port 4) end of the 2 x 2 optical coupler is connected with a spectrometer and is used for observing the generated optical frequency comb;
the polarization state of the non-linear optical loop mirror in the anticlockwise direction and the clockwise direction is changed by adjusting the polarization controllers PC1 and PC2, and the optical carrier is suppressed; the flatness of the comb teeth of the optical frequency comb is adjusted by adjusting the power of the optical delay line and each frequency component of the radio frequency signal, and the generated optical frequency comb spectrum is observed by a spectrometer, as shown in fig. 2, the flatness of the optical frequency comb is 0.84 dB.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention in its spirit and scope. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An optical frequency comb generating apparatus based on a nonlinear optical loop mirror, comprising:
a semiconductor laser for outputting a laser signal;
the input end of the optical isolator is connected with the semiconductor laser;
the optical coupler is connected with the output end of the optical isolator;
a polarization controller including a first polarization controller and a second polarization controller, the first polarization controller being connected with the optical coupler;
the phase modulator is connected with the optical coupler through the first polarization controller;
and the optical delay line comprises a first end and a second end, the first end is connected with the optical coupler, and the second end is connected with the phase modulator through the second polarization controller.
2. The apparatus of claim 1, wherein the optical frequency comb generator is based on a non-linear optical loop mirror,
the optical coupler is a 2 x 2 optical coupler;
the splitting ratio of the optical coupler is 50: 50;
the optical coupler comprises a first input port, a second input port, a first output port and a second output port;
the first input port is connected with the optical isolator;
the first output port is connected with the first polarization controller;
the second output port is connected with the first end of the optical delay line;
the second input port is used for observing the optical frequency comb generated by the optical frequency comb generating device through an instrument.
3. The apparatus as claimed in claim 2, wherein the optical frequency comb generator based on the nonlinear optical loop mirror,
the spectrometer is connected with the second input port.
4. The apparatus of claim 1, wherein the optical frequency comb generator is based on a non-linear optical loop mirror,
the phase modulator is a broadband phase modulator.
5. The apparatus of claim 1, wherein the optical frequency comb generator is based on a non-linear optical loop mirror,
the phase modulator further comprises phase modulator driving means;
the phase modulator driving apparatus includes a phase modulator driving circuit,
a microwave source for generating a radio frequency signal;
a frequency divider connected to the microwave source;
the adjustable attenuator is connected with the microwave source through the frequency divider;
the input end of the microwave amplifier is respectively connected with the microwave source and the adjustable attenuator;
and the output end of the microwave amplifier is connected with the phase modulator.
6. The apparatus of claim 5, wherein the optical frequency comb generator based on a non-linear optical loop mirror,
the phase modulator driving device also comprises a microwave coupler used for dividing output signals emitted by the microwave source into two paths;
the microwave source is connected with the microwave amplifier and the frequency divider through the microwave coupler.
7. The apparatus of claim 5, wherein the optical frequency comb generator based on a non-linear optical loop mirror,
the frequency of the microwave source is 20 GHz;
the frequency divider is a halving frequency divider;
the output signal frequency of the microwave amplifier is greater than 10 dBm.
8. The method for generating an optical frequency comb based on a nonlinear optical loop mirror as claimed in any one of claims 1 to 7, comprising the steps of:
s1, starting a microwave source to emit a first output signal, dividing the first output signal into a first path of signal and a second path of signal through a microwave coupler, enabling the first path of signal to enter an adjustable attenuator through a frequency divider to generate a frequency division signal, combining the second path of signal and the frequency division signal into a microwave amplifier input signal, amplifying the microwave amplifier input signal to be more than 10dBm through the microwave amplifier, and obtaining a phase modulator driving signal for driving the phase modulator;
s2, starting the semiconductor laser to emit a second output signal, enabling the second output signal to enter the optical coupler through the optical isolator, enabling the optical coupler to transmit the second output signal to the first polarization controller through the first output port to generate a first polarized optical signal, enabling the first polarized optical signal to enter the phase modulator to be subjected to signal modulation to obtain a first modulated optical signal, and transmitting the first modulated optical signal to the optical coupler through the second polarization controller and an optical delay line;
s3, the second output signal enters the optical delay line through the second output port of the optical coupler, enters the second polarization controller after being processed by the optical delay line, and generates a second polarized optical signal, the second polarized optical signal enters the phase modulator for signal modulation, so as to obtain a second modulated optical signal, and the second modulated optical signal is transmitted to the optical coupler through the first polarization controller;
and S4, based on the optical coupler, obtaining the optical frequency comb through the first modulation optical signal and the second modulation optical signal, and observing the flatness of the comb teeth of the optical frequency comb based on the second input port through the spectrometer.
9. The method as claimed in claim 7, wherein the optical frequency comb is generated based on a nonlinear optical loop mirror,
the frequency of the first output signal is 20 GHz.
10. The method as claimed in claim 7, wherein the optical frequency comb is generated based on a nonlinear optical loop mirror,
the flatness was 0.84 dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207022.5A CN113009630A (en) | 2021-02-24 | 2021-02-24 | Optical frequency comb generation device and method based on nonlinear optical loop mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207022.5A CN113009630A (en) | 2021-02-24 | 2021-02-24 | Optical frequency comb generation device and method based on nonlinear optical loop mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113009630A true CN113009630A (en) | 2021-06-22 |
Family
ID=76387327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110207022.5A Pending CN113009630A (en) | 2021-02-24 | 2021-02-24 | Optical frequency comb generation device and method based on nonlinear optical loop mirror |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113009630A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05223581A (en) * | 1992-02-13 | 1993-08-31 | Tokimec Inc | Optical fiber gyro |
| JP2002214656A (en) * | 2001-01-18 | 2002-07-31 | National Institute Of Advanced Industrial & Technology | Method and device for generating single sideband light frequency comb having carrier signal suppressed |
| CN103415800A (en) * | 2011-03-07 | 2013-11-27 | 阿尔卡特朗讯 | A tunable optical frequency comb generator |
| JP2017211500A (en) * | 2016-05-25 | 2017-11-30 | パナソニックＩｐマネジメント株式会社 | All-optical switch |
| CN108594478A (en) * | 2018-03-22 | 2018-09-28 | 西安电子科技大学 | The generation device and method of super flat optical frequency com based on dual-polarization modulator |
| CN109556593A (en) * | 2018-10-09 | 2019-04-02 | 清华大学深圳研究生院 | A kind of angular velocity measurement device, method and its carrier |
| CN109613335A (en) * | 2018-12-06 | 2019-04-12 | 电子科技大学 | A kind of microwave signal frequency measuring device and method based on circulating frequency shift |
| CN109791341A (en) * | 2016-06-24 | 2019-05-21 | Npl管理有限公司 | Nonreciprocity light propagation system and method |
| CN111193549A (en) * | 2019-11-14 | 2020-05-22 | 苏州枫桥光电科技有限公司 | Optical frequency comb generation device and method based on bilateral cyclic frequency shift |
-
2021
- 2021-02-24 CN CN202110207022.5A patent/CN113009630A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05223581A (en) * | 1992-02-13 | 1993-08-31 | Tokimec Inc | Optical fiber gyro |
| JP2002214656A (en) * | 2001-01-18 | 2002-07-31 | National Institute Of Advanced Industrial & Technology | Method and device for generating single sideband light frequency comb having carrier signal suppressed |
| CN103415800A (en) * | 2011-03-07 | 2013-11-27 | 阿尔卡特朗讯 | A tunable optical frequency comb generator |
| JP2017211500A (en) * | 2016-05-25 | 2017-11-30 | パナソニックＩｐマネジメント株式会社 | All-optical switch |
| CN109791341A (en) * | 2016-06-24 | 2019-05-21 | Npl管理有限公司 | Nonreciprocity light propagation system and method |
| CN108594478A (en) * | 2018-03-22 | 2018-09-28 | 西安电子科技大学 | The generation device and method of super flat optical frequency com based on dual-polarization modulator |
| CN109556593A (en) * | 2018-10-09 | 2019-04-02 | 清华大学深圳研究生院 | A kind of angular velocity measurement device, method and its carrier |
| CN109613335A (en) * | 2018-12-06 | 2019-04-12 | 电子科技大学 | A kind of microwave signal frequency measuring device and method based on circulating frequency shift |
| CN111193549A (en) * | 2019-11-14 | 2020-05-22 | 苏州枫桥光电科技有限公司 | Optical frequency comb generation device and method based on bilateral cyclic frequency shift |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109039464B (en) | Microwave photon millimeter wave ultra-wideband signal generation method and device based on up-conversion | |
| Xie et al. | System-level performance of chip-based Brillouin microwave photonic bandpass filters | |
| US9768873B2 (en) | Amplification-free electro-optical oscillator | |
| CN109586798B (en) | Photonic generation device capable of tuning multi-output microwave signals | |
| CN109713552B (en) | High-stability microwave signal generation method based on stimulated Brillouin scattering effect | |
| CN108988105A (en) | A kind of generation device and its method of the super flat microwave frequency comb in high power broadband | |
| CN108199776A (en) | A kind of microwave photon means of upconversion and method based on optical-electronic oscillator | |
| CN108153000B (en) | Optical frequency comb generator with spectral line interval equal to optical fiber Brillouin frequency shift | |
| CN106785812B (en) | Photoelectric oscillator based on stimulated Brillouin scattering amplification effect and adjusting method | |
| CN113225133A (en) | Narrow-linewidth seed source and laser spectrum broadening method | |
| Devgan et al. | Improvement in the phase noise of a 10 GHz optoelectronic oscillator using all-photonic gain | |
| CN107947867B (en) | Single-sideband spectrum generation device and method based on multi-frequency phase modulation | |
| Kim et al. | Comb-based RF photonic filters based on interferometric configuration and balanced detection | |
| US8730567B2 (en) | Terahertz continuous wave generator | |
| CN110971193A (en) | Millimeter wave noise signal generator based on FP chaotic laser | |
| CN117039611B (en) | Frequency multiplication terahertz photoelectric oscillator device and oscillation method thereof | |
| CN113009630A (en) | Optical frequency comb generation device and method based on nonlinear optical loop mirror | |
| CN113281917B (en) | Optical frequency comb generation system and method | |
| CN114337824B (en) | Polarization insensitive microwave photon link system and implementation method | |
| CN105827330A (en) | Method and system for millimeter wave generation | |
| CN111834869B (en) | Chaotic light source all-optical phase modulation seed source for high-power narrow-spectrum optical fiber amplification | |
| Zhou et al. | A tunable multi-frequency optoelectronic oscillator based on stimulated Brillouin scattering | |
| Hasanuzzaman et al. | Cascaded microwave photonic filters for side mode suppression in a tunable optoelectronic oscillator applied to THz signal generation & transmission | |
| Meena et al. | Direct generation of RF signals using photonic heterodyne method for radar applications | |
| WO2020174034A1 (en) | Generation of optical pulses with controlled distributions of quadrature values |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210622 |