CN201188500Y - Electric startup mode locker - Google Patents
Electric startup mode locker Download PDFInfo
- Publication number
- CN201188500Y CN201188500Y CNU2008200794345U CN200820079434U CN201188500Y CN 201188500 Y CN201188500 Y CN 201188500Y CN U2008200794345 U CNU2008200794345 U CN U2008200794345U CN 200820079434 U CN200820079434 U CN 200820079434U CN 201188500 Y CN201188500 Y CN 201188500Y
- Authority
- CN
- China
- Prior art keywords
- locked mode
- mode
- direct current
- current machine
- laser
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a mode locking device which can be electrically started. The mode locking device comprises a fixed base, a bearing ball, an eccentric wheel, a direct-current electromotor and a locking-mode exploring device, wherein, the fixed base is fixedly connected with a translation stage of a laser with a locking mode to be started, so as to support the direct-current electromotor; the bearing ball is connected to the side of the translation stage of the laser and is jointed with the peripheral surface of the eccentric wheel which is connected with the mainshaft of the direct-current electromotor, when the eccentric wheel rotates under the driving of the direct-current electromotor, the translation stage is caused to move, so as to start the locking mode; the locking-mode exploring device is used for controlling the stop of the locking mode, when a locking-mode signal is explored, a control signal is sent to the direct-current electromotor, so as to ensure the direct-current electromotor to stop rotating and the mode locking to stop. The mode locking device has the advantages that the manual operation is replaced by electromotion, in addition, a switch is positioned outside the laser, thereby a light path in a laser cavity is not influenced, the operation and the control are facilitated, and the mode locking device is capable of being applied in a titanium doped sapphire crystal femtosecond laser in a large scale, and the considerable economic benefit can be brought.
Description
Technical field
The utility model relates to the femtosecond laser technical field, particularly stably starts the device of titanium-doped sapphire femtosecond laser oscillator locked mode.
Technical background
The self mode locking phenomenon of ti sapphire laser is found in nineteen ninety by people such as Scottish Spence, the appearance of this technology can be described as the brand-new chapter that has opened ultra-short pulse laser research fully, different with traditional active mode locking and passive mode locking is, contain the laser oscillator of strong Kerr effect medium for some, under specific cavity structure, need not to adopt any modulation that adds or saturated absorbing body can realize stable locked mode running, this simple structure combines with the ti sapphire laser with super broad tuning bandwidth, become the main flow of current ultra-short pulse laser, and produced the ultra-short pulse laser that pulse duration is lower than 5fs.
The basic principle that present this mode-locking technique relied on generally believe be since solid state gain medium under the strong-focusing pumping due to the formed Kerr effect.Under the effect of pump light and oscillation light, the refraction index profile of medium will radially change, and gain media is equivalent to a GRIN Lens.When oscillating laser passed through this medium, stronger light showed as the different focus version of two covers with more weak light, and it also shows as different beam sizes everywhere in the chamber.If the somewhere adds that the suitable hard-edge light hurdle of a size makes than high light because the transmitting beam that strong-focusing causes just in time by this light hurdle, and can not be passed through than the transmitting beam that the weak focus of the low light level causes in the chamber like this, then system equivalence is in a quick saturated absorbing body.Laser is through after repeatedly round vibration reaches dynamic equilibrium, and stable self mode locking process has also just been set up.
The startup of the locked mode of titanium-doped sapphire femtosecond laser oscillator must have that a perturbation that adds is moving just can be realized, traditional most typical startup method is the translation stage that manually promotes to place prism or end mirror fast, give perturbation of laser moving, thereby the startup locked mode is illustrated in figure 1 as traditional laser oscillator that does not have automatic startup locked mode.This mode that manually boots locked mode need be opened the laser cover plate and realize manual promotion, perhaps the knob of translation stage is extended to the laser outside by switching and realize manually booting locked mode, so it is more loaded down with trivial details manually to promote to start locked mode, and owing to need open the cover plate of laser, the state behind the locked mode of making is subjected to the influence of stream condition and instability easily.
The utility model content
At above problem, the utility model proposes a kind of novel electronic startup clamping apparatus, its basic thought is exactly to utilize a direct current machine to drive an eccentric wheel quick rotation, and then the rapid translation of promotion translation stage occurrence positions, thereby the locked mode of startup femto-second laser.Built-in locked mode detection will produce a time-delay voltage signal direct current machine is stopped operating after the locked mode signal, and this moment, the mode-lock status of laser was just stably moved.The mode of this startup locked mode is finished under the situation of laser sealing fully, avoids the influence of air-flow to mode-lock status.If because external vibration or other reasons, mode-lock status stops, the switch that only need opening direct current machine once more restarts locked mode, and the method is simple.
The purpose of this utility model is the unfavorable factor at existing ti sapphire laser manual lock modeling method, the electronic starting drive of the novel femtosecond laser oscillator locked mode that we propose, not only simplified the locked mode Starting mode of femto-second laser, but also strengthened the stability of locked mode, and filled up the blank of domestic and international electronic startup clamping apparatus.
Detailed technology scheme of the present utility model is as follows: a kind of electronic startup clamping apparatus comprises firm banking (6), ball (5), eccentric wheel (3), direct current machine (2) and locked mode sniffer; Wherein firm banking is fixedlyed connected with the translation stage of the laser that will be activated locked mode, is used to support direct current machine; Ball (5) is connected to the side of the translation stage of described laser, engages with the outer surface of eccentric component, and eccentric component links to each other with the main shaft of direct current machine, when rotating under the drive of eccentric component at direct current machine, translation stage is moved, to start locked mode; The locked mode sniffer is used to control stopping of locked mode, when detecting the locked mode signal, sends control signal to direct current machine, and direct current machine is stopped operating, and stops locked mode; Finish the course of work of one-shot locked mode.Particularly, above-mentioned laser can be the titanium-doped sapphire femtosecond laser, and described eccentric component can be eccentric wheel or elliptic wheel.
Further, electronic startup clamping apparatus comprises the DC power supply that links to each other with direct current machine, should
The output voltage of DC power supply (1) is 3V, and rotating speed is 300 rev/mins, and moment of torsion is 10N; Described eccentric wheel diameter is 13 millimeters, thickness is 4 millimeters, 3.5 millimeters places link to each other with the main shaft of direct current machine apart from the center, translation stage is of a size of 40 * 40 * 15mm, the diameter of ball is 4 millimeters, firm banking is of a size of 40 * 29 * 15mm, and the locked mode sniffer is the pulse detection device, and is made up of a photodiode and a cover control circuit.
The above concrete mounting means of element is as follows:
At first, direct current machine (2) is installed on the firm banking (6) with screw, then eccentric wheel (3) is installed on the dwang of direct current machine.Firm banking (6) is installed on the thruster translation stage (4) that is placed with end mirror in the titanium-doped sapphire femtosecond laser oscillator.Direct current machine (2) inserts in DC power supply (1) and the locked mode control device.The back that photodiode in the locked mode control device is placed on a refrative mirror in the oscillator is used to survey the locked mode signal.
Open the titanium-doped sapphire femtosecond laser oscillator that has regulated, open the DC power supply (1) of direct current machine (2), direct current machine (2) drives eccentric wheel (3) quick rotation, and then promotes the translation of translation stage (4) occurrence positions, thereby starts the mode-lock status of femto-second laser.Built-in lock
The mould detection will produce a time-delay voltage signal direct current machine (2) is stopped operating, the just stable operation of mode-lock status of laser at this moment after the locked mode signal.The switch of direct current machine is installed on the shell of laser, and keeps the sealing of laser, when needs started locked mode, only this switch need be closed just can start locked mode.
Characteristics that compared with the prior art the utility model is had and benefit are embodied in several aspects: the electronic starting drive of the novel titanium-doped sapphire femtosecond laser locked mode that the utility model proposed, simple in structure, be convenient to operation, both reduced and manually pushed away the inconvenience that translation stage starts locked mode, avoid the influence of air-flow but also can make laser remain on closed state to mode-lock status, the utility model has been filled up the blank of domestic and international startup clamping apparatus, the switch that this device starts is placed on the laser outside, and laser keeps air-tight state, can the light path in the chamber not exerted an influence, be convenient to very much control especially.This device can be applied to will produce considerable economic in the titanium-doped sapphire femto-second laser on a large scale.
Description of drawings
The electronic startup clamping apparatus of Fig. 1 the utility model 3-D solid structure schematic diagram;
The eccentric wheel schematic three dimensional views of the electronic startup clamping apparatus of Fig. 2 the utility model;
The firm banking schematic three dimensional views of the electronic startup clamping apparatus of Fig. 3 the utility model.
Embodiment
Below in conjunction with drawings and Examples this utility model is described in detail.
As shown in Figure 1, be the 3-D solid structure schematic diagram of the laser oscillator that has the electronic startup clamping apparatus of the utility model; Electronic startup clamping apparatus of the present utility model comprises DC power supply 1, direct current machine 2, eccentric wheel 3, ball 5, firm banking 6, a cover locked mode control device, described locked mode sniffer is the pulse detection device, and the photodiode and the control circuit (being positioned at cabinet inside, not shown) that comprise a detection usefulness.The stereochemical structure of eccentric wheel 2 and firm banking 6 respectively as shown in Figures 2 and 3.
Direct current machine 2 usefulness screws are installed on the firm banking 6, then eccentric wheel 3 are installed on the dwang of direct current machine.Firm banking 6 is installed on the thruster translation stage 4 that is placed with crystal or chirped mirror in the titanium-doped sapphire femtosecond laser oscillator.Direct current machine 2 inserts in DC power supply 1 and the locked mode control device.The back that photodiode in the locked mode control device is placed on a refrative mirror in the oscillator is used to survey the locked mode signal.
When needs start locked mode, open the titanium-doped sapphire femtosecond laser oscillator that has regulated, open the DC power supply 1 of direct current machine 2, direct current machine 2 drives eccentric wheel 3 and rotates, promote the translation of translation stage 4 occurrence positions, this moment, hot spot became circle suddenly, and color becomes and sends out the electronic startup locked mode that mist then means femto-second laser.Built-in locked mode control device detects after the locked mode signal, will produce a time-delay voltage signal direct current machine 2 is stopped operating, the just stable operation of mode-lock status of laser at this moment, the course of work of realization one-shot locked mode.If because external vibration or other reasons, mode-lock status stops, switch that opening direct current machine once more restarts locked mode.
In the present embodiment, the output voltage of the DC power supply of using is 3V, and rotating speed is 300 rev/mins, and moment of torsion is 10N; The eccentric wheel diameter is 13 millimeters, thickness is 4 millimeters, 3.5 millimeters places link to each other with the main shaft of direct current machine apart from the center, translation stage is of a size of 40 * 40 * 15mm, the diameter of ball is 4 millimeters, firm banking is of a size of 40 * 29 * 15mm, 4 stepped holes and 3 through holes are arranged on it so that install and fixedly direct current machine and with the translation stage switching, the mode locking pulse sniffer is made up of a photodiode and a cover control circuit.
Below with reference to the accompanying drawings; preferred embodiment of the present utility model has been described; but the utility model is not limited thereto; every those of ordinary skills are under the enlightenment of the utility model thought; any improvement and the distortion made for example, are adopted direct current machine, the firm banking of different size and other the mounting means of different parameters; or adopt elliptic wheel to replace eccentric wheel etc., all belong to protection range of the present utility model.
Claims (5)
1, a kind of electronic startup clamping apparatus is characterized in that, comprises firm banking (6), ball (5), eccentric wheel (3), direct current machine (2) and locked mode sniffer; Wherein firm banking is fixedlyed connected with the translation stage of the laser that will be activated locked mode, is used to support direct current machine; Ball (5) is connected to the side of the translation stage of described laser, engages with the outer surface of eccentric component, and eccentric component links to each other with the main shaft of direct current machine, when rotating under the drive of eccentric component at direct current machine, translation stage is moved, to start locked mode; The locked mode sniffer is used to control stopping of locked mode, when detecting the locked mode signal, sends control signal to direct current machine, and direct current machine is stopped operating, and stops locked mode; Finish the course of work of one-shot locked mode.
2, electronic startup clamping apparatus as claimed in claim 1, it is characterized in that: described laser is the titanium-doped sapphire femtosecond laser.
3, electronic startup clamping apparatus as claimed in claim 1, it is characterized in that: described eccentric component is eccentric wheel or elliptic wheel.
4, electronic startup clamping apparatus as claimed in claim 3, it is characterized in that: described electronic startup clamping apparatus further comprises the DC power supply (1) that links to each other with direct current machine (2), the output voltage of this DC power supply (1) is 3V, and rotating speed is 300 rev/mins, and moment of torsion is 10N; Described eccentric wheel diameter is 13 millimeters, thickness is 4 millimeters, 3.5 millimeters places link to each other with the main shaft of direct current machine apart from the center, translation stage is of a size of 40 * 40 * 15mm, the diameter of ball is 4 millimeters, firm banking is of a size of 40 * 29 * 15mm, and the locked mode sniffer is the pulse detection device, and is made up of a photodiode and a cover control circuit.
5, as the described electronic startup clamping apparatus of above-mentioned any claim, it is characterized in that: when described locked mode detection arrives the locked mode signal,, be the voltage signal of time-delay to the control signal that direct current machine sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200794345U CN201188500Y (en) | 2008-03-17 | 2008-03-17 | Electric startup mode locker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200794345U CN201188500Y (en) | 2008-03-17 | 2008-03-17 | Electric startup mode locker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201188500Y true CN201188500Y (en) | 2009-01-28 |
Family
ID=40311522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200794345U Expired - Fee Related CN201188500Y (en) | 2008-03-17 | 2008-03-17 | Electric startup mode locker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201188500Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017156935A1 (en) * | 2016-03-14 | 2017-09-21 | 大恒新纪元科技股份有限公司 | Femtosecond laser oscillator |
-
2008
- 2008-03-17 CN CNU2008200794345U patent/CN201188500Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017156935A1 (en) * | 2016-03-14 | 2017-09-21 | 大恒新纪元科技股份有限公司 | Femtosecond laser oscillator |
| US10601197B2 (en) | 2016-03-14 | 2020-03-24 | Daheng New Epoch Technology Inc. | Femtosecond laser oscillator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201188500Y (en) | Electric startup mode locker | |
| US10597807B2 (en) | Front-loading washing machine having rotatable observation windowed door | |
| CN106877168B (en) | A kind of locking device of the optical cavity based on EOM and PZT | |
| US9300185B2 (en) | Flywheel power generating facility and method of operating same | |
| CN105161969A (en) | Q-switched laser oscillator with switchable working mode and adjusting method thereof | |
| CN106638381A (en) | Rotating shaft integration novel swing gate | |
| CN105932535A (en) | Regeneration amplifier with first pulse self-inhibition function | |
| US11322964B2 (en) | Automatic control method and device for solar supercapacitor power supply | |
| CN205430207U (en) | Treatment circuit and phase -locked loop | |
| CN214314801U (en) | Brushless motor with quick positioning and adjustable installation size | |
| CN211813216U (en) | Automatic lifting gear box device | |
| CN209189078U (en) | A kind of GPPS diffuser plate processing antistatic apparatus for coating | |
| CN208508724U (en) | The variable gap device of AC Motor Control centrifugal switch | |
| CN107945775B (en) | A kind of drum of adjustable covering tensioning degree | |
| CN216852574U (en) | Solidification device for assembling laser aging drive integrated circuit board | |
| CN206529722U (en) | The new swing turnstile of rotating shaft integration | |
| CN218409152U (en) | Telescopic anti-shake camera bracket | |
| CN205195675U (en) | Low -power consumption crystal oscillator circuit of quick start | |
| CN205610430U (en) | Novel radiating vibrating motor of automatically regulated | |
| CN201556015U (en) | rotary 35mm lens adapter | |
| US20240128622A1 (en) | Centrifugal battery liquid injection mechanism and liquid injection method thereof | |
| CN220315845U (en) | Storage and transportation fixing device for gas storage bottle | |
| CN215361130U (en) | Automobile front combined lamp convenient for cleaning internal reflector | |
| CN210867578U (en) | Solar new energy power supply device for life | |
| CN216355286U (en) | Large-energy output optical fiber laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20110317 |