CN106299993A - Laser device and laser power monitor feedback method - Google Patents
Laser device and laser power monitor feedback method Download PDFInfo
- Publication number
- CN106299993A CN106299993A CN201610139630.6A CN201610139630A CN106299993A CN 106299993 A CN106299993 A CN 106299993A CN 201610139630 A CN201610139630 A CN 201610139630A CN 106299993 A CN106299993 A CN 106299993A
- Authority
- CN
- China
- Prior art keywords
- laser
- power
- difference
- reflected
- reflection
- 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
Classifications
-
- 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
Abstract
A kind of laser device and laser power monitor feedback method, wherein laser device includes: generating laser；The driving source being connected with generating laser；The transflection mirror being positioned in the light path of the laser that generating laser sends, for making laser be divided into the reflection laser along different directions transmission and transmission laser；It is positioned at the power sensor in the light path of reflection laser, for obtaining the reflected laser power of reflection laser；The power feedback controller being connected with power sensor and driving source, power feedback controller is for obtaining the difference between reflected laser power and reflected laser power setting value, and according to the driving voltage of described difference regulation driving source, so that described difference is in difference allowed band value.The present invention, by the reflected laser power of monitoring reflection laser, obtains the difference between reflected laser power and reflected laser power setting value, and real-time is adjusted driving voltage, so that the laser power stability that generating laser sends.
Description
Technical field
The present invention relates to laser medicine field, particularly to a kind of laser device and laser power monitor
Feedback method.
Background technology
Laser is one of 20th century mankind's greatness invention, and is widely used in a lot of field.Low-intensity swashs
The clinical value of photoradiation treatment has been affirmed.It is mainly used in treating brain diseases, cardiovascular
The diseases such as disease, diabetes, malignant tumor, leukemia, psychiatric condition, psoriasis, rhinitis.According to
Healthy medical discovery, low level laser convalescent period after cardiovascular and cerebrovascular disease morbidity primary prevention and morbidity is all
There is preferable curative effect, healthy and suppression human senility tool are had certain effect.Additionally, laser skill
Art is also widely used at the aspect such as biochemical investigation, hemanalysis, and high power laser can be also used for
Surgical operation.
As a example by holmium laser therapy instrument, holmium laser therapy instrument is a kind of to be applied to the novel of laser medicine field
Laser device, its core component is a kind of solid state laser, by crystal, xenon lamp and appearance be crystal and
With the resonator cavity composition converging optical fiber.Xenon lamp pulsed light emissions to encourage the crystal formation pulse type laser of holmium,
The resonator cavity that described pulse type laser is formed via various optical glass systems, can actual apply to be formed
Bladder stone.Thered is provided to xenon lamp by regulation Laser Power Devices and control voltage and power carrying out pulsed to xenon lamp,
Make xenon lamp pulsed light emissions, encourage the crystal formation pulse type laser of holmium.The technical parameter of Bladder stone mainly wraps
Including single pulse energy and pulse frequency, leading indicator parameter is laser power, wherein, and laser power and list
The equal direct proportionality of pulse energy, pulse frequency.
In real work, there is the practical laser power of laser of generation with required laser power not
Symbol problem, this be likely due to xenon lamp decay, lens lesion, resonator cavity damage, light path pollution or
The factors such as water route pollution cause.When practical laser power does not mates with required laser power, meeting
Affect the using effect of laser device.
Therefore, a kind of laser device of offer and laser power monitor feedback method are provided badly, are not interfering
Under conditions of laser device normally works, it is possible to real-time monitoring practical laser power situation, and according to
Monitoring situation carries out real-time regulation to laser device.
Summary of the invention
The problem that the present invention solves is to provide a kind of laser device and laser power monitor feedback method,
Improve the stability of the laser power of laser device output.
For solving the problems referred to above, the present invention provides a kind of laser device, including: generating laser, institute
State generating laser for sending laser；The driving source being connected with described generating laser, described driving source
For providing driving voltage, under the excitation of driving voltage, generating laser sends laser；；It is positioned at described sharp
Transflection mirror in the light path of light, described transflection mirror is divided into the reflection along different directions transmission to swash for making laser
Light and transmission laser；It is positioned at the power sensor in the light path of described reflection laser, described power sensor
For obtaining the reflected laser power of reflection laser；The merit being connected with described power sensor and driving source
Rate feedback controller, described power feedback controller is used for obtaining reflected laser power and reflected laser power
Difference between setting value, and according to the driving voltage of described difference regulation driving source, so that described difference
In difference allowed band value.
Optionally, described power feedback controller includes: the monitoring means being connected with power sensor, institute
State monitoring means for obtaining the reflected laser power that power sensor obtains；It is connected with described monitoring means
Comparing unit, described comparing unit is used for obtaining described reflected laser power and sets with reflected laser power
Difference between value；It is used for judging to the judging unit being connected, described judging unit with described comparing unit
Whether described difference is in difference allowed band value；Anti-with the voltage that described judging unit and driving source are connected
Feedback regulation unit, described Voltage Feedback regulation unit is for the judged result regulation obtained according to judging unit
The driving voltage of driving source, so that described difference is in difference allowed band value.
Optionally, described power feedback controller also includes: is connected with described comparing unit or is integrated in ratio
Acquiring unit in relatively unit, described acquiring unit is used for obtaining reflected laser power setting value.
Optionally, described power feedback controller also includes: second be connected with described acquiring unit is deposited
Storage unit, described second memory element is for storing the laser power settings that generating laser sends；With
The 3rd memory element that described acquiring unit is connected, described 3rd memory element is for storing transflection mirror
The light transmittance of the plane of incidence.
Optionally, described power feedback controller also includes: is connected with described judging unit or is integrated in and sentences
The first memory element in disconnected unit, described first memory element is used for storing described difference allowed band value.
Optionally, described laser device also includes controlling display frequency, and wherein, described Feedback of Power controls
Device is integrated in control display frequency.
Optionally, described generating laser includes crystal, light source and accommodates the humorous of described crystal and light source
Shake chamber, and wherein, described light source is connected with described driving source.
Optionally, described crystal is holmium crystal；Described light source is xenon lamp；Described driving source is switching voltage.
Optionally, also there is in described resonator cavity back cavity eyeglass and the ante-chamber eyeglass laying respectively at crystal both sides,
Wherein, described ante-chamber eyeglass is positioned at the light emission side of generating laser, and described ante-chamber eyeglass is half reflection eyeglass,
Described back cavity eyeglass is total reflection eyeglass.
Optionally, the light transmittance of the plane of incidence of described transflection mirror is 95% to 99.5%.
Optionally, the angle of incidence between the plane of incidence and the laser optical path direction of described transflection mirror is 45 degree.
Optionally, described laser device also includes: be positioned at the coupling mirror in described transmission laser light path,
Described coupling mirror is used for converging described transmission laser and forms laser beam；It is positioned at the light in described laser beam light path
Fibre, described optical fiber is used for described beam transmission to position to be treated.
The present invention also provides for a kind of laser power monitor feedback method, including: the excitation provided at driving source
Under the excitation of voltage, generating laser sends laser；After described Laser Transmission to transflection mirror, in transflection
Laser is made to be divided into the reflection laser along different directions transmission and transmission laser under the transflection effect of mirror；Obtain institute
State the reflected laser power of reflection laser；Obtain described reflected laser power and reflected laser power setting value
Between difference；Judge that described difference, whether in difference allowed band value, allows when described difference exceeds
During value range, the driving voltage of regulation driving source, so that described difference is in difference allowed band value.
Optionally, the method obtaining described reflected laser power setting value includes: according to described Laser emission
The Output of laser set value of the power of device and the light transmittance of the plane of incidence of transflection mirror, it is thus achieved that described reflection swashs
Luminous power setting value.
Optionally, described difference allowed band value be reflected laser power setting value ± 20%.
Optionally, the luminous flux that luminous flux is the laser that described generating laser sends of described reflection laser
0.5% to 5%.
Compared with prior art, technical scheme has the advantage that
The present invention provides a kind of laser device, and the laser optical path that generating laser sends is provided with transflection
Mirror, and described transflection mirror make laser be divided into along different directions transmission reflection laser and transmission laser；It is positioned at
Being provided with power sensor in the light path of reflection laser, described power sensor is for obtaining reflection laser
Reflected laser power；The power feedback controller being connected with power sensor and driving source, described power
Feedback controller is for obtaining the difference between reflected laser power and reflected laser power setting value, and depends on
According to the driving voltage of described difference regulation driving source, so that described difference is in difference allowed band value.Adopt
The laser device provided by the present invention, it is possible to normally use not affecting the laser that laser device sends
In the case of, by the reflected laser power of the reflection laser that monitoring is formed through transflection mirror, and judge
Difference between reflected laser power and reflected laser power setting value whether in difference allowed band value,
The real-time driving voltage to driving source is adjusted so that described difference continues in difference allowed band value
And the laser power stability making generating laser send is improved, improve laser device output
The performance of laser.
Accordingly, the present invention also provides for a kind of laser power monitor feedback method, at swashing that driving source provides
Encouraging under the excitation of voltage, generating laser sends laser；After described Laser Transmission to transflection mirror, thoroughly
Laser is made to be divided into the reflection laser along different directions transmission and transmission laser under the effect of anti-mirror；Then, obtain
Take the reflected laser power of described reflection laser, then obtain reflected laser power and set with reflected laser power
Difference between definite value；Judge described difference whether in difference allowed band value, when described difference exceeds
During difference allowed band value, the driving voltage of regulation driving source, so that described difference is in difference allowed band
In value.The present invention can improve the power stability of laser device Output of laser, and will not be to laser
The normal work of device device Output of laser interferes.
Accompanying drawing explanation
The functional block diagram of the laser device that Fig. 1 provides for the present invention；
The structural representation of the laser device that Fig. 2 provides for the present invention；
The functional block diagram of the power feedback controller that Fig. 3 provides for the present invention；
The schematic flow sheet of the laser power monitor method that Fig. 4 provides for the present invention.
Detailed description of the invention
From background technology, prior art does not exists practical laser power and required laser power not
The problem joined, easily has undesirable effect the using effect of laser device.
Find through analyzing, in the case of the driving voltage holding provided to xenon lamp is constant, after xenon lamp aging
Luminous efficiency reduction causes its brightness to decline, and the single pulse energy thus resulting in the laser that crystal sends reduces,
Thus cause the practical laser power of laser device not mate with laser power settings.In order to make up xenon
The problem produced after lamp is aging, needs to improve the driving voltage value applying xenon lamp so that it is luminous efficiency carries
High brightness becomes strong, thus makes up the dimmed harmful effect causing laser power of xenon lamp brightness.
Above-mentioned only with xenon lamp aging, the impact of the laser power of laser device is analyzed, it is also possible to go out
Now following situation, in the case of the driving voltage holding provided to xenon lamp is constant, the luminous efficiency of xenon lamp
Becoming causes greatly its brightness to strengthen, and the single pulse energy thus resulting in the laser that crystal sends strengthens, thus leads
The practical laser power causing laser device does not mates with laser power settings.In order to make up this problem,
Need to reduce the driving voltage value that xenon lamp is applied so that it is luminous efficiency reduces brightness and declines, thus avoids
Xenon lamp brightness brightens the harmful effect causing laser power.
The laser power of the laser device caused by other reasons produces change, such as by lens lesion,
The impact that laser device is caused by the reasons such as resonator cavity damage, light path pollution or water route pollution, it is also possible to
Compensate by changing the brightness of xenon lamp, such as by strengthening xenon lamp brightness or weakening xenon lamp brightness,
Then the impact that practical laser power is produced by other reasons is compensated.
The driving voltage value applied xenon lamp due to xenon lamp luminosity and driving source has direct relation, therefore
By regulating the driving voltage of driving source, it is possible to make up or offset the uncontrollable factor reality to laser device
The harmful effect that border power causes.In real work, owing to the laser of laser device output generally needs
Directly act on pending position, such as in medical laser treatment instrument field, generating laser output
Laser directly acts on position to be treated, therefore, it is difficult to directly obtain practical laser power, therefore, it is difficult to root
Judge whether to need the driving voltage of driving source is adjusted according to the practical laser power obtained.
For solving the problems referred to above, the present invention provides a kind of laser device, including, generating laser, institute
State generating laser for sending laser；The driving source being connected with described generating laser, described driving source
For providing driving voltage, under the excitation of driving voltage, generating laser sends laser；It is positioned at described sharp
Transflection mirror in the light path of light, described transflection mirror is divided into the reflection along different directions transmission to swash for making laser
Light and transmission laser；It is positioned at the power sensor in the light path of described reflection laser, described power sensor
For obtaining the reflected laser power of reflection laser；The merit being connected with described power sensor and driving source
Rate feedback controller, described power feedback controller is used for obtaining reflected laser power and reflected laser power
Difference between setting value, and according to the driving voltage of described difference regulation driving source, so that described difference
In difference allowed band value.
The laser that the present invention sends by monitoring generating laser is via the reflection laser formed after transflection mirror
Reflected laser power, it is judged that whether the difference between reflected laser power and reflected laser power setting value exists
In difference allowed band value, thus the driving voltage of driving source is adjusted, it is ensured that described difference is poor
In value allowed band value, and then ensure that the laser power that generating laser sends meets the requirements, improve laser
The laser power stability of device device output.
Understandable, below in conjunction with the accompanying drawings for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
The specific embodiment of the present invention is described in detail.
In conjunction with the functional block diagram of the laser device provided for the present invention with reference to Fig. 1 and Fig. 2, Fig. 1, Fig. 2
For the structural representation of laser device, described laser device includes:
Generating laser 101, described generating laser 101 is used for sending laser；
The driving source 111 being connected with described generating laser 101, described driving source 111 is used for providing excitation
Voltage, under the excitation of driving voltage, generating laser 101 sends laser；
The transflection mirror 102 being positioned in the light path of described laser, described transflection mirror 102 is used for making laser be divided into edge
The reflection laser of different directions transmission and transmission laser；
Being positioned at the power sensor 103 in the light path of described reflection laser, described power sensor 103 is used for
Obtain the reflected laser power of reflection laser；
The power feedback controller 104 being connected with described power sensor 103 and driving source 111, described
Power feedback controller 104 is for obtaining the difference between reflected laser power and reflected laser power setting value
Value, and according to the driving voltage of described difference regulation driving source 111, so that described difference allows in difference
In value range.
The laser device provided the present embodiment below with reference to accompanying drawing is described in detail.
With reference to Fig. 2, described generating laser 101 includes light source 112, crystal 113 and accommodates described light
The resonator cavity 114 of source 112 and crystal 113.
Wherein, described driving source 111 is connected with light source 112, and described driving source 111 carries to light source 112
For driving voltage, light source 112 is luminous under the incentive action of driving voltage.In the present embodiment, described sharp
Encouraging source 111 for the power supply that opens the light, described light source 112 is xenon lamp, with the laser device that provides as holmium laser
As a example by device, described crystal 113 is holmium crystal.
Described resonator cavity 114 converges and from generating laser 101 for the laser making crystal 113 send
Injection.The inner surface of described resonator cavity 114 has reflection function, described crystal 113 and light source 112
It is positioned in resonator cavity 114 so that most of light that light source 112 sends can enter crystal 113, favorably
The efficiency of laser is sent in raising crystal 113.
In the present embodiment, described generating laser 101 also includes ante-chamber eyeglass 115 and back cavity eyeglass 116,
Described ante-chamber eyeglass 115 and back cavity eyeglass 116 are positioned in resonator cavity 114, and ante-chamber eyeglass 115 and back cavity
Eyeglass 116 lays respectively at the both sides of crystal 113, and wherein, ante-chamber eyeglass 115 is positioned at going out of resonator cavity 114
Light side.Wherein, ante-chamber eyeglass 115 is half reflection eyeglass, and back cavity eyeglass 116 is total reflection eyeglass, institute
State total reflection eyeglass can inject whole laser-bounces of its minute surface, described half reflection eyeglass can make into
The fraction of laser light penetrating its minute surface is launched, and fraction of laser light transmission is also penetrated from generating laser 101.Crystal
113 laser sent, under the effect being totally reflected eyeglass, half reflection eyeglass, back and forth shake in resonator cavity 114
Swinging, and can enter in crystal 113, excited crystal 113 sends laser, the laser in resonator cavity 114 again
There is resonance, make the power of laser strengthen, and send to generating laser 101 is outside from semi-reflective mirror.
Described transflection mirror 102 is positioned in the light path of the laser that generating laser 101 sends, and is used for making described
Laser is divided into the reflection laser along different directions transmission and transmission laser.The plane of incidence of described transflection mirror 102
Light transmittance be 95% to 99.5%.Owing to the light transmittance of the plane of incidence of transflection mirror 102 is less than 100%, because of
After this laser is via transflection mirror 102 transmission, still have part remaining light through transflection mirror, described remaining light via
Reflect after the plane of incidence of transflection mirror 102, form reflection laser.With the plane of incidence of transflection mirror 102
As a example by light transmittance is A%, wherein, A is any value in 95 to 99.5, then via transflection mirror 102
The plane of incidence occur reflection (100-A) % that remaining light is the laser that generating laser 101 sends, described
The remaining light of reflection is used for monitoring its reflected laser power.
In the present embodiment, the laser that the plane of incidence of described transflection mirror 102 sends with generating laser 101
Angle of incidence between defeated direction is 45 degree.
Described power sensor 103 is positioned in the light path reflecting laser that transflection mirror 102 sends, it is possible to
Measure reflected laser power, thus the reflected laser power of laser is reflected in real-time acquisition.
Described power feedback controller 104 is connected with power sensor 103 and driving source 111, is used for
Obtain the difference between reflected laser power and reflected laser power setting value, and adjust according to described difference
The driving voltage of joint driving source, so that described difference is in difference allowed band value.
Concrete, with reference to the functional block diagram that Fig. 3, Fig. 3 are power feedback controller 104, described power is anti-
Feedback controller 104 includes:
The monitoring means 201 being connected with power sensor 103, described monitoring means 201 is used for obtaining power
The reflected laser power that sensor 103 obtains；
The comparing unit 202 being connected with described monitoring means 201, described comparing unit 202 is used for obtaining institute
State the difference between reflected laser power and reflected laser power setting value；
The judging unit 203 being connected with described comparing unit 202, described judging unit 203 is used for judging institute
State difference whether in difference allowed band value；
The Voltage Feedback regulation unit 204 being connected with described judging unit 203 and driving source 111, described electricity
Pressure feedback regulation unit 204 is for the judged result regulation driving source 111 obtained according to judging unit 203
Driving voltage so that described difference is in difference allowed band value.
In the present embodiment, described power feedback controller 104 also includes: with described comparing unit 202 phase
The acquiring unit 205 connected or be integrated in comparing unit 202, described acquiring unit 205 is used for obtaining reflection
Laser power settings；It is connected with described judging unit 203 or is integrated in first in judging unit 203
Memory element 206, described first memory element 206 is used for storing described difference allowed band value.
In the present embodiment, described power feedback controller 104 also includes: with described acquiring unit 205 phase
The second memory element 207 connected, described second memory element 207 is used for storing generating laser 101
The laser power settings gone out；The 3rd memory element 208 being connected with described acquiring unit 205, described
3rd memory element 208 is for storing the light transmittance values of the plane of incidence of transflection mirror 102.Concrete, laser
Device device has Output of laser set value of the power, when described Output of laser set value of the power it is known that and transflection
When the light transmittance of the plane of incidence of mirror 102 is known, it is possible to obtain reflected laser power setting value, therefore obtain
Unit 205 can store the reflected laser power setting value of acquisition.
In the present embodiment, described difference allowed band value be reflected laser power setting value ± 20%, described
Monitoring reflected laser power and the difference regulation of foundation acquisition that power feedback controller 104 is real-time encourage
The driving voltage in source 111, to ensure that described difference is in difference allowed band value.
In order to improve the integrated level of laser device, described laser device also includes controlling display frequency, its
In, described power feedback controller 104 is integrated in control display frequency, i.e. monitoring means 201, compare
Unit 202, judging unit 203, Voltage Feedback regulation unit 204, acquiring unit 205, first store
Unit 206 and the second memory element 207 are integrated in control display frequency.Described control shows that frequency can
Reflected laser power that real-time display monitors and described difference situation.
To sum up, the present invention provides the laser device that a kind of structural behaviour is superior, by arranging acquisition reflection
The power sensor of laser power, and the power feedback controller being connected with power sensor, real-time
Monitoring reflected laser power, and according to the difference between reflected laser power and reflected laser power setting value
Value, the driving voltage of driving source is adjusted, it is ensured that described difference in difference allowed band value, phase
Answering, it is possible to the laser power making generating laser send is improved, therefore laser device exports
Laser power stability is improved.
The present invention also provides for a kind of laser power monitor feedback method to above-mentioned offer laser device, knot
Close referring to figs. 1 to the schematic flow sheet that Fig. 4, Fig. 4 are laser power monitor feedback method, including:
Step S1, driving source 111 provide driving voltage excitation under, generating laser 101 sends
Laser；
Step S2, after described Laser Transmission to transflection mirror 102, under the transflection effect of transflection mirror 102
Laser is made to be divided into the reflection laser along different directions transmission and transmission laser；
Step S3, obtain the reflected laser power of described reflection laser；
Step S4, the difference obtained between described reflected laser power and reflected laser power setting value；
Step S5, judge described difference whether within difference allowed band, when described difference is beyond difference
During allowed band value, the driving voltage of regulation driving source, so that described difference is in difference allowed band value,
When described difference is in described difference allowed band value, do not regulate the driving voltage of driving source.
Hereinafter described laser power monitor feedback method will be described in detail.
The light transmittance of the plane of incidence of described transflection mirror 102 is 95% to 99.5%, therefore generating laser 101
The laser sent, via the plane of incidence of transflection mirror 102, has the part remaining light plane of incidence via transflection mirror 102
Reflect to form reflection laser.Owing in laser device, generating laser 101 has specific output
Laser power settings, described specific Output of laser set value of the power is that laser device sets when dispatching from the factory
Or according to actually used requirements set, and, transmissive mirror for given laser device
The light transmittance of the plane of incidence of 102 is also specific, according to the Output of laser power setting of generating laser 101
The light transmittance of the plane of incidence of value and transflection mirror 102, it is possible to the reflected laser power obtaining reflection laser sets
Definite value, say, that the method obtaining described reflected laser power setting value includes: according to described laser
The Output of laser set value of the power of emitter 101 and the light transmittance of the plane of incidence of transflection mirror 102, obtain
Obtain described reflected laser power setting value.
In a specific embodiment, reflected laser power setting value, Output of laser set value of the power are obtained
And between the light transmittance of transflection mirror 102 plane of incidence, the method for corresponding relation is: described light transmittance is it is known that adopt
With power sensor, the reflection light light path of transflection mirror obtains reflected laser power, saturating at transflection mirror
Penetrate acquisition Output of laser power in light light path；Change the power transmitting the laser to transflection mirror, in transmission extremely
In the case of the power difference of the laser of transflection mirror, repeatedly obtain reflected laser power and Output of laser power,
According to light transmittance, reflected laser power and Output of laser power, it is thus achieved that reflected laser power setting value,
Corresponding relation between Output of laser set value of the power and light transmittance.
The above-mentioned mode for using test to collect data, it is thus achieved that reflected laser power setting value, Output of laser
Corresponding relation between the light transmittance of set value of the power and the transflection mirror plane of incidence, in other embodiments, also
The mode of computer simulation can be used, it is thus achieved that reflected laser power setting value, Output of laser power setting
Corresponding relation between value and the light transmittance of the transflection mirror plane of incidence.
Therefore, the difference between the reflected laser power recorded and reflected laser power setting value is in difference
Time outside allowed band value, then Output of laser power and the Output of laser power of generating laser 101 is described
Difference between setting value also outside difference allowed band value, the Output of laser merit of generating laser 101
Rate is undesirable, needs to regulate the driving voltage of driving source 111 for this, to adjust generating laser 101
Output of laser power.
The above analysis, the difference between the reflected laser power recorded and reflected laser power setting value
When value is beyond difference allowed band value, it is automatically adjusted the driving voltage of driving source 111 so that described difference
It is in difference allowed band value, so that the Output of laser power of generating laser 101 meets the requirements,
Improve the laser output power stability of laser device.
In the present embodiment, the light transmittance of the plane of incidence of described transflection mirror 102 is 95% to 99.5%, accordingly
, the 0.5% of the luminous flux that luminous flux is the laser that generating laser 101 sends of described reflection laser to
5%.
In the present embodiment, utilize power sensor 103 obtain reflection laser reflected laser power, then,
Power feedback controller 104 is utilized to obtain the difference between reflected laser power and reflected laser power setting value
Value, it is judged that whether described difference is in difference allowed band value, and the result that foundation judges is to driving source
The driving voltage of 111 is adjusted.In the present embodiment, described difference allowed band value is reflected laser power
Setting value ± 20%, when difference beyond reflected laser power setting value ± 20% time, to described driving source
The driving voltage of 111 is adjusted, and is adjusted with the power to the laser that generating laser 101 sends,
Make described difference in difference allowed band value, thus ensure the laser power stability that laser device exports
Property.
Concrete, obtain, first with monitoring means 201, the reflection laser merit that power sensor 103 obtains
Rate；Then comparing unit 202 is utilized to obtain between reflected laser power and reflected laser power setting value
Difference；Then, whether described difference is in difference allowed band value to utilize judging unit 203 to judge；Electricity
Swashing of the judged result regulation driving source 111 that pressure feedback regulation unit 204 obtains according to judging unit 203
Encourage voltage, so that described difference is in difference allowed band value.
In one embodiment, the method for the driving voltage regulating described driving source 111 is: according to difference
And the proportionate relationship between reflected laser power setting value, the excitation electricity of the regulation driving source 111 of equal proportion
Pressure.Such as, when described difference is the 10% of reflected laser power setting value, then power feedback controller 104
Adjustment amount to the driving voltage of driving source 111 is reduce former driving voltage 10%；Described difference is anti-
When penetrating-the 10% of laser power settings, then the power feedback controller 104 excitation electricity to driving source 111
The adjustment amount of pressure is increase former driving voltage 10%.In other embodiments, it is also possible to use test
Method, it is thus achieved that the corresponding relation between described difference and driving voltage adjustment amount, thus according to described correspondence
The driving voltage of driving source 111 is adjusted by relation.
In the present embodiment, utilize the laser that laser reflector 101 sends via formation after transflection mirror 102
By monitoring reflected laser power, reflection laser, judges whether the Output of laser power of laser device accords with
Close requirement, and according to the difference between reflected laser power and reflected laser power setting value, to excitation
The driving voltage in source 111 is adjusted so that described difference, in difference allowed band value, ensures then
The stability of the laser power that generating laser 101 sends, it is to avoid practical laser power and required laser
The unmatched problem of power.
Although present disclosure is as above, but the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore the guarantor of the present invention
The scope of protecting should be as the criterion with claim limited range.
Claims (16)
1. a laser device, it is characterised in that including:
Generating laser, described generating laser is used for sending laser；
The driving source being connected with described generating laser, described driving source is for providing sharp to generating laser
Encouraging voltage, under the excitation of driving voltage, generating laser sends laser；
The transflection mirror being positioned in the light path of described laser, described transflection mirror is used for making laser be divided into along not Tongfang
To reflection laser and the transmission laser of transmission；
Being positioned at the power sensor in the light path of described reflection laser, described power sensor is used for obtaining instead
Penetrate the reflected laser power of laser；
The power feedback controller being connected with described power sensor and driving source, described Feedback of Power control
Device processed is used for obtaining the difference between reflected laser power and reflected laser power setting value, and according to described
The driving voltage of difference regulation driving source, so that described difference is in difference allowed band value.
2. laser device as claimed in claim 1, it is characterised in that described power feedback controller includes:
The monitoring means being connected with power sensor, described monitoring means is used for obtaining power sensor and obtains
Reflected laser power；
The comparing unit being connected with described monitoring means, described comparing unit is used for obtaining described reflection laser
Difference between power and reflected laser power setting value；
With described comparing unit to the judging unit being connected, described judging unit is used for judging that described difference is
No in difference allowed band value；
The Voltage Feedback regulation unit being connected with described judging unit and driving source, described Voltage Feedback regulates
The driving voltage of the unit judged result regulation driving source for obtaining according to judging unit, so that described difference
Value is in difference allowed band value.
3. laser device as claimed in claim 2, it is characterised in that described power feedback controller also wraps
Include: the first memory element being connected with described judging unit or being integrated in judging unit, described first
Memory element is used for storing described difference allowed band value.
4. laser device as claimed in claim 2, it is characterised in that described power feedback controller also wraps
Include: the acquiring unit being connected with described comparing unit or being integrated in comparing unit, described acquiring unit
For obtaining reflected laser power setting value.
5. laser device as claimed in claim 4, it is characterised in that described power feedback controller also wraps
Include:
The second memory element being connected with described acquiring unit, described second memory element is used for storing sharp
The laser power settings that optical transmitting set sends；
The 3rd memory element being connected with described acquiring unit, described 3rd memory element is used for storing
The light transmittance of the plane of incidence of anti-mirror.
6. laser device as claimed in claim 1, it is characterised in that described laser device also includes control
System display frequency, described power feedback controller is integrated in control display frequency.
7. laser device as claimed in claim 1, it is characterised in that described generating laser include crystal,
Light source and accommodate the resonator cavity of described crystal and light source, wherein, described light source and described driving source phase
Connect.
8. laser device as claimed in claim 7, it is characterised in that described crystal is holmium crystal；Described
Light source is xenon lamp；Described driving source is switching voltage.
9. laser device as claimed in claim 7, it is characterised in that also have respectively in described resonator cavity
Being positioned at back cavity eyeglass and the ante-chamber eyeglass of crystal both sides, wherein, described ante-chamber eyeglass is positioned at Laser emission
The light emission side of device, described ante-chamber eyeglass is half reflection eyeglass, and described back cavity eyeglass is total reflection eyeglass.
10. laser device as claimed in claim 1, it is characterised in that the plane of incidence of described transflection mirror saturating
Light rate is 95% to 99.5%.
11. laser devices as claimed in claim 1, it is characterised in that the plane of incidence of described transflection mirror is with sharp
Angle of incidence between light optical path direction is 45 degree.
12. laser devices as claimed in claim 1, it is characterised in that described laser device also includes:
Being positioned at the coupling mirror in described transmission laser light path, described coupling mirror is used for converging described transmission laser shape
Become laser beam；Being positioned at the optical fiber in described laser beam light path, described optical fiber is for passing described laser beam
It is passed to position to be treated.
13. 1 kinds of laser power monitor feedback methods, it is characterised in that including:
Under the excitation of the driving voltage of driving source offer, generating laser sends laser；
After described Laser Transmission to transflection mirror, laser is made to be divided into along different under the transflection effect of transflection mirror
The reflection laser of direction transmission and transmission laser；
Obtain the reflected laser power of described reflection laser；
Obtain the difference between described reflected laser power and reflected laser power setting value；
Judge described difference whether in difference allowed band value, when described difference is beyond difference allowed band
During value, the driving voltage of regulation driving source, so that described difference is in difference allowed band value.
14. methods as claimed in claim 13, it is characterised in that obtain described reflected laser power setting value
Method includes: according to the Output of laser set value of the power of described generating laser and entering of transflection mirror
Penetrate the light transmittance in face, it is thus achieved that described reflected laser power setting value.
15. methods as claimed in claim 13, it is characterised in that described difference allowed band value is reflection laser
Set value of the power ± 20%.
16. methods as claimed in claim 13, it is characterised in that the luminous flux of described reflection laser is described sharp
The 0.5% to 5% of the luminous flux of the laser that optical transmitting set sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139630.6A CN106299993A (en) | 2016-03-11 | 2016-03-11 | Laser device and laser power monitor feedback method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139630.6A CN106299993A (en) | 2016-03-11 | 2016-03-11 | Laser device and laser power monitor feedback method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106299993A true CN106299993A (en) | 2017-01-04 |
Family
ID=57651243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610139630.6A Pending CN106299993A (en) | 2016-03-11 | 2016-03-11 | Laser device and laser power monitor feedback method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106299993A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666107A (en) * | 2017-10-23 | 2018-02-06 | 深圳市创鑫激光股份有限公司 | Method, laser, storage medium and the electronic installation of calibration of laser power |
| CN108781116A (en) * | 2017-11-30 | 2018-11-09 | 深圳市大疆创新科技有限公司 | A kind of power regulating method and laser measuring device for measuring |
| CN110091080A (en) * | 2018-01-31 | 2019-08-06 | 住友重机械工业株式会社 | Laser control apparatus and laser processing |
| WO2019184214A1 (en) * | 2018-03-30 | 2019-10-03 | 昂纳信息技术（深圳）有限公司 | Sr4 device for monitoring transmission power and monitoring method |
| CN110535009A (en) * | 2019-08-28 | 2019-12-03 | 江苏沃飞激光技术有限公司 | A kind of laser light path monitoring protection method |
| CN111193177A (en) * | 2018-11-14 | 2020-05-22 | 方砾琳 | Laser echo noise processing system |
| CN111193176A (en) * | 2018-11-14 | 2020-05-22 | 方砾琳 | High-precision laser frequency adjusting and stabilizing system |
| CN112038267A (en) * | 2020-09-21 | 2020-12-04 | 京东方科技集团股份有限公司 | Laser energy adjusting device |
| CN113054522A (en) * | 2021-03-19 | 2021-06-29 | 江西麦帝施科技有限公司 | Laser power regulation and control circuit, method and readable storage medium |
| CN113093600A (en) * | 2021-03-30 | 2021-07-09 | 江西麦帝施科技有限公司 | Laser optical power output monitor and monitoring method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332212Y (en) * | 2009-01-22 | 2009-10-21 | 合肥大族科瑞达激光设备有限公司 | Novel two-way holmium laser |
| CN204618401U (en) * | 2015-05-06 | 2015-09-09 | 上海瑞柯恩激光技术有限公司 | Medical laser treatment machine |
| CN205612887U (en) * | 2016-03-11 | 2016-10-05 | 上海瑞柯恩激光技术有限公司 | Laser device |
-
2016
- 2016-03-11 CN CN201610139630.6A patent/CN106299993A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332212Y (en) * | 2009-01-22 | 2009-10-21 | 合肥大族科瑞达激光设备有限公司 | Novel two-way holmium laser |
| CN204618401U (en) * | 2015-05-06 | 2015-09-09 | 上海瑞柯恩激光技术有限公司 | Medical laser treatment machine |
| CN205612887U (en) * | 2016-03-11 | 2016-10-05 | 上海瑞柯恩激光技术有限公司 | Laser device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666107B (en) * | 2017-10-23 | 2020-10-16 | 深圳市创鑫激光股份有限公司 | Method of correcting laser power, laser, storage medium, and electronic apparatus |
| CN107666107A (en) * | 2017-10-23 | 2018-02-06 | 深圳市创鑫激光股份有限公司 | Method, laser, storage medium and the electronic installation of calibration of laser power |
| CN108781116A (en) * | 2017-11-30 | 2018-11-09 | 深圳市大疆创新科技有限公司 | A kind of power regulating method and laser measuring device for measuring |
| CN108781116B (en) * | 2017-11-30 | 2022-04-22 | 深圳市大疆创新科技有限公司 | Power adjustment method and laser measurement device |
| CN110091080A (en) * | 2018-01-31 | 2019-08-06 | 住友重机械工业株式会社 | Laser control apparatus and laser processing |
| JP7043128B2 (en) | 2018-01-31 | 2022-03-29 | 住友重機械工業株式会社 | Laser control device and laser processing method |
| WO2019184214A1 (en) * | 2018-03-30 | 2019-10-03 | 昂纳信息技术（深圳）有限公司 | Sr4 device for monitoring transmission power and monitoring method |
| CN111193176A (en) * | 2018-11-14 | 2020-05-22 | 方砾琳 | High-precision laser frequency adjusting and stabilizing system |
| CN111193177A (en) * | 2018-11-14 | 2020-05-22 | 方砾琳 | Laser echo noise processing system |
| CN110535009A (en) * | 2019-08-28 | 2019-12-03 | 江苏沃飞激光技术有限公司 | A kind of laser light path monitoring protection method |
| CN112038267A (en) * | 2020-09-21 | 2020-12-04 | 京东方科技集团股份有限公司 | Laser energy adjusting device |
| CN112038267B (en) * | 2020-09-21 | 2024-02-20 | 京东方科技集团股份有限公司 | Laser energy adjusting device |
| CN113054522A (en) * | 2021-03-19 | 2021-06-29 | 江西麦帝施科技有限公司 | Laser power regulation and control circuit, method and readable storage medium |
| CN113093600A (en) * | 2021-03-30 | 2021-07-09 | 江西麦帝施科技有限公司 | Laser optical power output monitor and monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106299993A (en) | Laser device and laser power monitor feedback method | |
| US7329251B2 (en) | Laser treatment apparatus | |
| WO2015166843A1 (en) | Endoscopic device | |
| US11172560B2 (en) | Ophthalmic illumination system with controlled chromaticity | |
| CN205612887U (en) | Laser device | |
| US20090207874A1 (en) | Multiwavelength laser system and method for ophtalmological applications | |
| JPH1012976A (en) | Laser oscillator | |
| CN203183034U (en) | Laser device and laser system | |
| CN106999025A (en) | Endoscope apparatus | |
| CN105920742A (en) | Photoelectric device for vitiligo treatment | |
| US7671327B2 (en) | Self calibrating irradiation system | |
| CN107015375A (en) | A kind of laser polarization coupling light path debugging device and method | |
| CN104224135A (en) | Multilevel microcirculation condition monitoring device and method | |
| CN204618401U (en) | Medical laser treatment machine | |
| CN106299996B (en) | Laser device and method for obtaining laser with multiple wavelengths | |
| CN109091764A (en) | A kind of multi-wavelength switching fiber device for laser therapy | |
| CN205452782U (en) | Laser device | |
| CN104617475B (en) | A kind of adjusting method of double-channel holmium laser | |
| WO2022246467A1 (en) | Systems and methods for generating a modulated laser pulse | |
| CN104269730A (en) | Passively Q-switched pulse laser | |
| CN203645677U (en) | Synchronization optical path composition adjusting indication and power monitoring device | |
| CN205520069U (en) | Optical element laser pretreatment systems | |
| CN105708546A (en) | Laser scalpel pen | |
| CN106823158A (en) | A kind of application method of amblyopia therapeutic equipment and amblyopia therapeutic equipment | |
| CN2675165Y (en) | Novel solid laser therapy machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |