CN105932528A - Method and apparatus for generating double-frequency comb by using 4-mirror ring cavities with external dispersion compensators and frequency shifters in parallel arrangement - Google Patents
Method and apparatus for generating double-frequency comb by using 4-mirror ring cavities with external dispersion compensators and frequency shifters in parallel arrangement Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
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- H—ELECTRICITY
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08004—Construction or shape of optical resonators or components thereof incorporating a dispersive element, e.g. a prism for wavelength selection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10053—Phase control
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- H—ELECTRICITY
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1307—Stabilisation of the phase
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Abstract
The invention discloses a method and apparatus for generating a double-frequency comb by using 4-mirror ring cavities with external dispersion compensators and frequency shifters in parallel arrangement, and belongs to the technical field of ultrafast lasers. The method comprises the following steps: using a spectroscope to enable one frequency stabilized laser to provide two beams of source lasers, generating a double-optical frequency comb by using two acousto-optic frequency shifters which are in parallel arrangement and two 4-mirror ring cavities each of which contains an electro-optical modulator therein, using the expansion of the dispersion compensators outside the 4-mirror ring cavities to generate a spectrum scope of the frequency comb, separately providing modulation driving signals to the acousto-optic frequency shifters and the electro-optical modulators by two binary channel signal-generators which have the same frequency reference, and obtaining a heterodyne double-optical frequency comb having heterodyne interference signal frequencies of respective comb tooth in arithmetic progression distribution. The invention also provides an apparatus for generating a double-frequency comb. The method can produce the heterodyne double-optical frequency comb which is characterized by large spectrum scope and excellent frequency consistency. The apparatus is advantaged by high system integration, simple structure and low cost.
Description
Technical field
The invention belongs to ultrafast laser technique, relate generally to a kind of compensate based on four mirror annular chamber intracavity modulations and chamber Laser with External Dispersive and also
The double optical frequency com of the heterodyne of connection formula dual-acousto-optic shift generates method and apparatus.
Background technology
Show as ultrashort laser pulse sequence in time domain owing to optical frequency com has, to show as pectination on frequency domain the most
The characteristic of spectrum so that it is obtain in fields such as pinpoint spectroscopic analysis, absolute distance measurement, optical maser wavelength calibration, time frequency signal transmission
Arrive extensive application.
In recent years, in pinpoint spectroscopic analysis with absolute distance measurement field, measuring method based on the double optical frequency com of heterodyne is not
Disconnected development, has become as its each important research direction in field.Frequency domain aspect, each comb between the double optical frequency com of heterodyne
The heterodyne interference signal of tooth is arithmetic progression distribution, it is simple to the interferometric information of high-precision each comb of extraction.Time domain aspect,
The time interval cyclically-varying of each pulse between the double optical frequency com of heterodyne, its measurement effect is consistent with pulse scanning mode,
Can significantly save the measurement time.
What the double optical frequency com of existing heterodyne generated that method is based primarily upon two set femtosecond frequency comb systems locks control mutually.But the party
In method, the frequency invariances of two set femtosecond frequency comb systems are limited by mutually locking control accuracy, simultaneously its realize apparatus structure complexity,
Cost is high, constrains and based on the double optical frequency com measuring method of heterodyne in pinpoint spectroscopic analysis and absolute distance measurement field enters one
Step development.It addition, the spectral region of optical frequency com has decisive role to the measurement scope in above-mentioned field with precision.Therefore,
Need heterodyne double optical frequency com generation method and apparatus of a kind of big spectral region, altofrequency concordance, low cost badly.
Summary of the invention
The purpose of the present invention is aiming at the problem that above-mentioned prior art exists, and proposes a kind of Laser with External Dispersive and compensates four mirror annular chambers and also
Connection shift frequency double frequency comb generates method and apparatus, reaches to realize the double optics of heterodyne of big spectral region, altofrequency concordance, low cost
The purpose that frequency comb generates.
The purpose of the present invention is achieved through the following technical solutions:
A kind of Laser with External Dispersive compensates four mirror annular chambers and shift frequency double frequency comb generation method in parallel, and the method step is as follows:
The emergent light frequency of (1) frequency stabilized carbon dioxide laser is v0, the described emergent light device that is split after optical isolator is divided into two
Shu Jiguang, described two bundle laser are respectively by two acousto-optic modulation frequency shifters, the modulating frequency of said two acousto-optic modulation frequency shifter
Value is respectively f1And f2, two+1 grade of shift frequency diffraction light frequency values of bundle of said two acousto-optic modulation frequency shifter output are respectively v0+f1
And v0+f2, described two+1 grade of shift frequency diffraction light of bundle input two four mirror annular chambers respectively, each contain in two four mirror annular chambers
The modulating frequency of an electrooptic modulator be respectively f3And f4, said two four mirror annular chamber exports a branch of optical frequency com respectively,
Two-beam frequency comb each inputs a dispersion compensation device, a branch of optical frequency com that two dispersion compensation device each export
Constitute the double optical frequency com of heterodyne；
(2) in the double optical frequency com of above-mentioned heterodyne, the center comb frequency of two-beam frequency comb is respectively v0+f1And v0+f2, institute
The center comb frequency-splitting stating two-beam frequency comb is | f1-f2|, the center comb frequency offset frequency of described two-beam frequency comb
Locking；
(3) in the double optical frequency com of above-mentioned heterodyne, the repetition rate of two-beam frequency comb is respectively f3And f4, described two-beam
The repetition rate difference of frequency comb is | f3-f4|, the repetition rate alien frequencies locking of described two-beam frequency comb；
(4) in the double optical frequency com of above-mentioned heterodyne, the frequency of two-beam frequency comb the i-th rank comb is expressed as v0+f1+i×f3
And v0+f2+i×f4, the heterodyne interference signal frequency of described two-beam frequency comb the i-th rank comb is | f1-f2|+i×|f3-f4|,
The center comb frequency-splitting of described two-beam frequency comb | f1-f2| with repetition rate difference | f3-f4| meet | f1-f2|>|i|×|f3
-f4|, the heterodyne interference signal frequency of described two-beam frequency comb the i-th rank comb is arithmetic progression；
(5) modulated signal of the primary acousto-optic modulation frequency shifter of parallel configuration and secondary acousto-optic modulation frequency shifter is by same the dual pathways
Signal generator provides, and the modulated signal of above-mentioned two electrooptic modulator is provided by another double-channel signal generator, and two double
The reference frequency signal of channel signal generator is provided by same reference frequency oscillator.
A kind of Laser with External Dispersive compensates four mirror annular chambers and shift frequency double frequency comb generating means in parallel, depends on the emitting light path of frequency stabilized carbon dioxide laser
Secondary configuration optical isolator and spectroscope；Described spectroscopical transmitted light path configures acousto-optic modulation frequency shifter A, at described sound
Configure on+1 grade of shift frequency optical diffraction of light modulation frequency shifter A four mirror annular chamber A, described four mirror annular chamber A by the first chamber mirror a,
Second chamber mirror a, the 3rd chamber mirror a, the 4th chamber mirror a and electrooptic modulator A composition ,+1 grade of shift frequency of acousto-optic modulation frequency shifter A
Diffraction light passes sequentially through the first chamber mirror a, the second chamber mirror a, and the 3rd chamber mirror a is arranged on the reflected light path of the second chamber mirror a, and the 4th
Chamber mirror a is arranged on the reflected light path of the 3rd chamber mirror a, and the first chamber mirror a is arranged on the reflected light path of the 4th chamber mirror a, and first
Chamber mirror a makes+1 grade of shift frequency diffraction light from acousto-optic modulation frequency shifter A overlap with the reflection light light path from the 4th chamber mirror a, institute
State electrooptic modulator A to be arranged in the first chamber mirror a, the second chamber mirror a, the 3rd chamber mirror a, the 4th chamber mirror a between any two chamber mirrors
In light path；In four mirror annular chamber A exterior arrangement dispersion compensation device A, described dispersion compensation device A is arranged in the second chamber mirror a
Transmitted light path on；Described spectroscopical reflected light path configures reflecting mirror, acousto-optic modulation frequency shifter B successively, at described sound
Configure on+1 grade of shift frequency optical diffraction of light modulation frequency shifter B four mirror annular chamber B, described four mirror annular chamber B by the first chamber mirror b,
Second chamber mirror b, the 3rd chamber mirror b, the 4th chamber mirror b and electrooptic modulator B composition ,+1 grade of shift frequency of acousto-optic modulation frequency shifter B
Diffraction light passes sequentially through the first chamber mirror b, the second chamber mirror b, and the 3rd chamber mirror b is arranged on the reflected light path of the second chamber mirror b, and the 4th
Chamber mirror b is arranged on the reflected light path of the 3rd chamber mirror b, and the first chamber mirror b is arranged on the reflected light path of the 4th chamber mirror b, and first
Chamber mirror b makes+1 grade of shift frequency diffraction light from acousto-optic modulation frequency shifter B overlap with the reflection light light path from the 4th chamber mirror b, institute
State electrooptic modulator B to be arranged in the first chamber mirror b, the second chamber mirror b, the 3rd chamber mirror b, the 4th chamber mirror b between any two chamber mirrors
In light path；Configuring dispersion compensation device B outside four mirror annular chamber B, described dispersion compensation device B is arranged in the second chamber mirror b's
On transmitted light path；Reference frequency oscillator is connected respectively with double-channel signal generator A, double-channel signal generator B, described
Double-channel signal generator A is connected respectively with acousto-optic modulation frequency shifter A, acousto-optic modulation frequency shifter B, and described double-channel signal is sent out
Raw device B is connected respectively with electrooptic modulator A, electrooptic modulator B.
The invention have the characteristics that and good result:
(1), compared with optical frequency coms double with existing heterodyne generate method, the present invention utilizes a frequency stabilized carbon dioxide laser for the double light of heterodyne
The generation process learning frequency comb provides source laser, and the double optical frequency com frequency invariance of the heterodyne generated is good.
(2) utilize four mirror annular chamber intracavity modulation formula optical frequency coms to generate method and apparatus and simplify the double optical frequency com of heterodyne
The system structure of generating means, reduces and realizes cost.
(3) parallel dual-acousto-optic shift method and apparatus coordinates synchronous pilot frequency actuation techniques to achieve in the double optical frequency com of heterodyne
The rrequency-offset-lock of heart comb frequency.
(4) intra-cavity phase modulator approach in Crossed Circle chamber coordinates synchronous pilot frequency actuation techniques to achieve the double optical frequency of heterodyne with device
The alien frequencies of comb repetition rate mutually locks.
(5) four mirror ring cavity structures make the unidirectional electrooptic modulator by intracavity of the laser in resonator cavity, effectively prevent electric light from adjusting
Burning of device processed, it is allowed to export the double optical frequency com of powerful heterodyne.
(6) outside resonator, place dispersion compensation device, can significantly reduce the reduction of annular chamber size, beneficially Resonant Intake System
And then promote the repetition rate of the double optical frequency com of heterodyne.
Accompanying drawing explanation
Fig. 1 is that Laser with External Dispersive compensates four mirror annular chambers and shift frequency double frequency comb generating means structural representation in parallel.
In figure piece number explanation: 1 frequency stabilized carbon dioxide laser, 2 optical isolators, 3 beam splitters, 4 reflecting mirrors, 5 acousto-optic frequency shifters A, 6
Acousto-optic frequency shifters B, 7 four mirror annular chamber A, 8 first chamber mirror a, 9 second chamber mirror a, 10 the 3rd chamber mirror a, 11 the 4th chamber mirror a,
12 4 mirror annular chamber B, 13 first chamber mirror b, 14 second chamber mirror b, 15 the 3rd chamber mirror b, 16 the 4th chamber mirror b, 17 electric light are adjusted
Device A processed, 18 electrooptic modulator B, 19 dispersion compensation device A, 20 dispersion compensation device B, 21 reference frequency oscillators,
22 double-channel signal generator A, 23 double-channel signal generator B.
Detailed description of the invention
Below in conjunction with the accompanying drawings the specific embodiment of the invention is described in further detail.
A kind of Laser with External Dispersive compensates four mirror annular chambers and shift frequency double frequency comb generating means in parallel, on the emitting light path of frequency stabilized carbon dioxide laser 1
Configuration optical isolator 2 and spectroscope 3 successively；The transmitted light path of described spectroscope 3 configures acousto-optic modulation frequency shifter A5,
+ 1 grade of shift frequency optical diffraction of described acousto-optic modulation frequency shifter A5 configures four mirror annular chamber A7, described four mirror annular chamber A7
Being made up of the first chamber mirror a8, the second chamber mirror a9, the 3rd chamber mirror a10, the 4th chamber mirror a11 and electrooptic modulator A17, acousto-optic is adjusted
+ 1 grade of shift frequency diffraction light of frequency shifter A5 processed passes sequentially through the first chamber mirror a8, the second chamber mirror a9, and the 3rd chamber mirror a10 is arranged in
On the reflected light path of two chamber mirror a9, the 4th chamber mirror a11 is arranged on the reflected light path of the 3rd chamber mirror a10, and the first chamber mirror a8 joins
Putting on the reflected light path of the 4th chamber mirror a11, the first chamber mirror a8 makes+1 grade of shift frequency diffraction light from acousto-optic modulation frequency shifter A5
Overlapping with the reflection light light path from the 4th chamber mirror a11, described electrooptic modulator A17 is arranged in the first chamber mirror a8, the second chamber mirror
In a9, the 3rd chamber mirror a10, the 4th chamber mirror a11 between any two chamber mirrors in light path；In four mirror annular chamber A7 exterior arrangement dispersions
Compensating device A19, described dispersion compensation device A19 is arranged on the transmitted light path of the second chamber mirror a9；At described spectroscope 3
Reflected light path on configure reflecting mirror 4, acousto-optic modulation frequency shifter B6 successively, in+1 grade of shifting of described acousto-optic modulation frequency shifter B6
Frequently configure on optical diffraction four mirror annular chamber B12, described four mirror annular chamber B12 by the first chamber mirror b13, the second chamber mirror b14,
Three chamber mirror b15, the 4th chamber mirror b16 and electrooptic modulator B18 composition ,+1 grade of shift frequency diffraction light of acousto-optic modulation frequency shifter B6
Passing sequentially through the first chamber mirror b13, the second chamber mirror b14, the 3rd chamber mirror b15 is arranged on the reflected light path of the second chamber mirror b14, the
Four chamber mirror b16 are arranged on the reflected light path of the 3rd chamber mirror b15, and the first chamber mirror b13 is arranged in the reflection light of the 4th chamber mirror b16
Lu Shang, the first chamber mirror b13 make anti-with from the 4th chamber mirror b16 of+1 grade of shift frequency diffraction light from acousto-optic modulation frequency shifter B6
Penetrate light light path to overlap, described electrooptic modulator B18 be arranged in the first chamber mirror b13, the second chamber mirror b14, the 3rd chamber mirror b15, the
In four chamber mirror b16 between any two chamber mirrors in light path；Dispersion compensation device B20, described color is configured outside four mirror annular chamber B12
Dispersion compensator part B20 is arranged on the transmitted light path of the second chamber mirror b14；Reference frequency oscillator 21 occurs with double-channel signal
Device A22, double-channel signal generator B23 connect respectively, described double-channel signal generator A22 and acousto-optic modulation frequency shifter
A5, acousto-optic modulation frequency shifter B6 connect respectively, and described double-channel signal generator B23 and electrooptic modulator A17, electric light are adjusted
Device B18 processed connects respectively.
The first chamber mirror a8 of four described mirror annular chamber A7, the second chamber mirror a9, the 3rd chamber mirror a10, the 4th chamber mirror a11 and four
The first chamber mirror b13 of mirror annular chamber B12, the second chamber mirror b14, the 3rd chamber mirror b15, the 4th chamber mirror b16 include plane mirror, recessed
Face mirror and convex mirror chamber mirror type.
Described dispersion compensation device A19 and dispersion compensation device B20 include grating to, prism to and dispersion compensating fiber.
Described electrooptic modulator A17 and electrooptic modulator B18 includes electro-optic intensity modulator and electro-optic phase modulator.
Described reference frequency oscillator 21 includes atomic clock, crystal oscillator, ceramic resonator, electronic oscillator.
A kind of Laser with External Dispersive compensates four mirror annular chambers and shift frequency double frequency comb generation method in parallel, and the method step is as follows:
The emergent light frequency of (1) frequency stabilized carbon dioxide laser is v0, the described emergent light device that is split after optical isolator is divided into two
Shu Jiguang, described two bundle laser are respectively by two acousto-optic modulation frequency shifters, the modulating frequency of said two acousto-optic modulation frequency shifter
Value is respectively f1And f2, two+1 grade of shift frequency diffraction light frequency values of bundle of said two acousto-optic modulation frequency shifter output are respectively v0+f1
And v0+f2, described two+1 grade of shift frequency diffraction light of bundle input two four mirror annular chambers respectively, each contain in two four mirror annular chambers
The modulating frequency of an electrooptic modulator be respectively f3And f4, said two four mirror annular chamber exports a branch of optical frequency com respectively,
Two-beam frequency comb each inputs a dispersion compensation device, a branch of optical frequency com that two dispersion compensation device each export
Constitute the double optical frequency com of heterodyne；
(2) in the double optical frequency com of above-mentioned heterodyne, the center comb frequency of two-beam frequency comb is respectively v0+f1And v0+f2, institute
The center comb frequency-splitting stating two-beam frequency comb is | f1-f2|, the center comb frequency offset frequency of described two-beam frequency comb
Locking；
(3) in the double optical frequency com of above-mentioned heterodyne, the repetition rate of two-beam frequency comb is respectively f3And f4, described two-beam
The repetition rate difference of frequency comb is | f3-f4|, the repetition rate alien frequencies locking of described two-beam frequency comb；
(4) in the double optical frequency com of above-mentioned heterodyne, the frequency of two-beam frequency comb the i-th rank comb is expressed as v0+f1+i×f3
And v0+f2+i×f4, the heterodyne interference signal frequency of described two-beam frequency comb the i-th rank comb is | f1-f2|+i×|f3-f4|,
The center comb frequency-splitting of described two-beam frequency comb | f1-f2| with repetition rate difference | f3-f4| meet | f1-f2|>|i|×|f3
-f4|, the heterodyne interference signal frequency of described two-beam frequency comb the i-th rank comb is arithmetic progression；
(5) modulated signal of the primary acousto-optic modulation frequency shifter of parallel configuration and secondary acousto-optic modulation frequency shifter is by same the dual pathways
Signal generator provides, and the modulated signal of above-mentioned two electrooptic modulator is provided by another double-channel signal generator, and two double
The reference frequency signal of channel signal generator is provided by same reference frequency oscillator.
Other levels time shift frequency diffraction light of described primary acousto-optic modulation frequency shifter and secondary acousto-optic modulation frequency shifter equally realizes
State step.
Claims (7)
1. a Laser with External Dispersive compensates four mirror annular chambers and shift frequency double frequency comb generation method in parallel, it is characterised in that: described method step
As follows:
The emergent light frequency of (1) frequency stabilized carbon dioxide laser is v0, the described emergent light device that is split after optical isolator is divided into two
Shu Jiguang, described two bundle laser are respectively by two acousto-optic modulation frequency shifters, the modulating frequency of said two acousto-optic modulation frequency shifter
Value is respectively f1And f2, two+1 grade of shift frequency diffraction light frequency values of bundle of said two acousto-optic modulation frequency shifter output are respectively v0+f1
And v0+f2, described two+1 grade of shift frequency diffraction light of bundle input two four mirror annular chambers respectively, each contain in two four mirror annular chambers
The modulating frequency of an electrooptic modulator be respectively f3And f4, said two four mirror annular chamber exports a branch of optical frequency com respectively,
Two-beam frequency comb each inputs a dispersion compensation device, a branch of optical frequency com that two dispersion compensation device each export
Constitute the double optical frequency com of heterodyne；
(2) in the double optical frequency com of above-mentioned heterodyne, the center comb frequency of two-beam frequency comb is respectively v0+f1And v0+f2, institute
The center comb frequency-splitting stating two-beam frequency comb is | f1-f2|, the center comb frequency offset frequency of described two-beam frequency comb
Locking；
(3) in the double optical frequency com of above-mentioned heterodyne, the repetition rate of two-beam frequency comb is respectively f3And f4, described two-beam
The repetition rate difference of frequency comb is | f3-f4|, the repetition rate alien frequencies locking of described two-beam frequency comb；
(4) in the double optical frequency com of above-mentioned heterodyne, the frequency of two-beam frequency comb the i-th rank comb is expressed as v0+f1+i×f3
And v0+f2+i×f4, the heterodyne interference signal frequency of described two-beam frequency comb the i-th rank comb is | f1-f2|+i×|f3-f4|,
The center comb frequency-splitting of described two-beam frequency comb | f1-f2| with repetition rate difference | f3-f4| meet | f1-f2|>|i|×|f3
-f4|, the heterodyne interference signal frequency of described two-beam frequency comb the i-th rank comb is arithmetic progression；
(5) modulated signal of the primary acousto-optic modulation frequency shifter of parallel configuration and secondary acousto-optic modulation frequency shifter is by same the dual pathways
Signal generator provides, and the modulated signal of above-mentioned two electrooptic modulator is provided by another double-channel signal generator, and two double
The reference frequency signal of channel signal generator is provided by same reference frequency oscillator.
Laser with External Dispersive the most according to claim 1 compensates four mirror annular chambers and shift frequency double frequency comb generation method in parallel, and its feature exists
In: other levels time shift frequency diffraction light of described primary acousto-optic modulation frequency shifter and secondary acousto-optic modulation frequency shifter equally realizes
State step.
3. Laser with External Dispersive compensates four mirror annular chambers and a shift frequency double frequency comb generating means in parallel, in the outgoing of frequency stabilized carbon dioxide laser (1)
Optical isolator (2) and spectroscope (3) is configured successively in light path；It is characterized in that: at the transmission light of described spectroscope (3)
Configure acousto-optic modulation frequency shifter A (5) on road ,+1 grade of shift frequency optical diffraction of described acousto-optic modulation frequency shifter A (5) is joined
Putting four mirrors annular chamber A (7), described four mirrors annular chamber A (7) are by the first chamber mirror a (8), the second chamber mirror a (9), the 3rd chamber
Mirror a (10), the 4th chamber mirror a (11) and electrooptic modulator A (17) composition ,+1 grade of shifting of acousto-optic modulation frequency shifter A (5)
Frequently diffraction light passes sequentially through the first chamber mirror a (8), the second chamber mirror a (9), and the 3rd chamber mirror a (10) is arranged in the second chamber mirror a (9)
Reflected light path on, the 4th chamber mirror a (11) is arranged on the reflected light path in the 3rd chamber mirror a (10), and the first chamber mirror a (8) is joined
Putting on the reflected light path in the 4th chamber mirror a (11), the first chamber mirror a (8) makes+1 from acousto-optic modulation frequency shifter A (5)
Level shift frequency diffraction light overlaps with the reflection light light path from the 4th chamber mirror a (11), and described electrooptic modulator A (17) is arranged in the
Light path between any two chamber mirrors in one chamber mirror a (8), the second chamber mirror a (9), the 3rd chamber mirror a (10), the 4th chamber mirror a (11)
On；At four mirrors annular chamber A (7) exterior arrangement dispersion compensation device A (19), described dispersion compensation device A (19) configures
On the transmitted light path in the second chamber mirror a (9)；The reflected light path of described spectroscope (3) configures successively reflecting mirror (4),
Acousto-optic modulation frequency shifter B (6), configures four mirror annulars on+1 grade of shift frequency optical diffraction of described acousto-optic modulation frequency shifter B (6)
Chamber B (12), described four mirrors annular chamber B (12) by the first chamber mirror b (13), the second chamber mirror b (14), the 3rd chamber mirror b (15),
4th chamber mirror b (16) and electrooptic modulator B (18) composition ,+1 grade of shift frequency diffraction light of acousto-optic modulation frequency shifter B (6) depends on
Secondary passing through the first chamber mirror b (13), the second chamber mirror b (14), the 3rd chamber mirror b (15) is arranged in the anti-of the second chamber mirror b (14)
Penetrating in light path, the 4th chamber mirror b (16) is arranged on the reflected light path in the 3rd chamber mirror b (15), the first chamber mirror b (13) configuration
On the reflected light path in the 4th chamber mirror b (16), the first chamber mirror b (13) makes+1 grade from acousto-optic modulation frequency shifter B (6)
Shift frequency diffraction light overlaps with the reflection light light path from the 4th chamber mirror b (16), and described electrooptic modulator B (18) is arranged in
Light between any two chamber mirrors in one chamber mirror b (13), the second chamber mirror b (14), the 3rd chamber mirror b (15), the 4th chamber mirror b (16)
Lu Shang；Configuring outward dispersion compensation device B (20) at four mirrors annular chamber B (12), described dispersion compensation device B (20) configures
On the transmitted light path in the second chamber mirror b (14)；Reference frequency oscillator (21) and double-channel signal generator A (22), double
Channel signal generator B (23) connects respectively, described double-channel signal generator A (22) and acousto-optic modulation frequency shifter A (5),
Acousto-optic modulation frequency shifter B (6) connects respectively, described double-channel signal generator B (23) and electrooptic modulator A (17),
Electrooptic modulator B (18) connects respectively.
Laser with External Dispersive the most according to claim 3 compensates four mirror annular chambers and shift frequency double frequency comb generating means in parallel, and its feature exists
In: the first chamber mirror a (8) of four described mirrors annular chamber A (7), the second chamber mirror a (9), the 3rd chamber mirror a (10), the 4th
Chamber mirror a (11) and the first chamber mirror b (13) of four mirrors annular chamber B (12), the second chamber mirror b (14), the 3rd chamber mirror b (15),
4th chamber mirror b (16) includes plane mirror, concave mirror and convex mirror chamber mirror type.
Laser with External Dispersive the most according to claim 3 compensates four mirror annular chambers and shift frequency double frequency comb generating means in parallel, and its feature exists
In: described dispersion compensation device A (19) and dispersion compensation device B (20) include grating to, prism to and dispersion compensation
Optical fiber.
Laser with External Dispersive the most according to claim 3 compensates four mirror annular chambers and shift frequency double frequency comb generating means in parallel, and its feature exists
In: described electrooptic modulator A (17) and electrooptic modulator B (18) includes electro-optic intensity modulator and electric light phase-modulation
Device.
Laser with External Dispersive the most according to claim 3 compensates four mirror annular chambers and shift frequency double frequency comb generating means in parallel, and its feature exists
In: described reference frequency oscillator (21) includes atomic clock, crystal oscillator, ceramic resonator, electronic oscillator.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349205A (en) * | 2009-03-06 | 2012-02-08 | Imra美国公司 | Optical scanning and imaging systems based on dual pulsed laser systems |
| CN102508231A (en) * | 2011-10-28 | 2012-06-20 | 清华大学 | Fabry-Perot interference absolute distance measurement method based on femtosecond optical frequency comb and device thereof |
| CN105428987A (en) * | 2016-01-05 | 2016-03-23 | 华东师范大学 | High-power ultrashort-pulse optical frequency comb generation method based on self-similar amplifier |
| CN105470794A (en) * | 2016-01-11 | 2016-04-06 | 华东师范大学 | Active resonant cavity based self-similarity ultrashort pulse amplification system and working method therefor |
-
2016
- 2016-05-11 CN CN201610307976.2A patent/CN105932528A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349205A (en) * | 2009-03-06 | 2012-02-08 | Imra美国公司 | Optical scanning and imaging systems based on dual pulsed laser systems |
| CN102508231A (en) * | 2011-10-28 | 2012-06-20 | 清华大学 | Fabry-Perot interference absolute distance measurement method based on femtosecond optical frequency comb and device thereof |
| CN105428987A (en) * | 2016-01-05 | 2016-03-23 | 华东师范大学 | High-power ultrashort-pulse optical frequency comb generation method based on self-similar amplifier |
| CN105470794A (en) * | 2016-01-11 | 2016-04-06 | 华东师范大学 | Active resonant cavity based self-similarity ultrashort pulse amplification system and working method therefor |
Non-Patent Citations (3)
| Title |
|---|
| RUITAO YANG 等: "《Heterodyne multi-wavelength absolute interferometry based on a cavity-enhanced electro-optic frequency comb pair》", 《OPTICS LETTERS》 * |
| 杨睿韬: "《基于外差双光学频率梳的多波长干涉测距方法研究》", 《中国博士学位论文全文数据库》 * |
| 梁志国 等: "《用差频腔产生覆盖633nm光谱的飞秒激光频率梳》", 《计量学报》 * |
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