CN209561857U - A kind of laser fiber picosecond seed source - Google Patents
A kind of laser fiber picosecond seed source Download PDFInfo
- Publication number
- CN209561857U CN209561857U CN201920398838.9U CN201920398838U CN209561857U CN 209561857 U CN209561857 U CN 209561857U CN 201920398838 U CN201920398838 U CN 201920398838U CN 209561857 U CN209561857 U CN 209561857U
- Authority
- CN
- China
- Prior art keywords
- oscillator
- laser
- seed source
- amplifier
- coupler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lasers (AREA)
Abstract
The utility model relates to laser technology fields, provide a kind of laser fiber picosecond seed source, the oscillator and amplifier of the pump light that the pumping semiconductor laser provides are received including the pumping semiconductor laser for providing pump light and respectively, the oscillator includes the semiconductor saturable absorber of the mode locking self-starting for the oscillator and the adjustment component for adjusting mode locking self-starting power threshold, the output end of the semiconductor saturable absorber is connected to the incidence end of the adjustment component, the output end of the adjustment component is connected to the incidence end of the amplifier.A kind of laser fiber picosecond seed source of the utility model, by adjusting the mode locking self-starting power threshold of component adjustment oscillator, to reduce the light intensity of semiconductor saturable absorber, the working life of semiconductor saturable absorber is extended, to extend the working life of mode locking picosecond laser.
Description
Technical field
The utility model relates to laser technology field, specially a kind of laser fiber picosecond seed source.
Background technique
Picoseconds (the 10 of high pulse energy, high-peak power-12Second) pulse laser has in fields such as industrial Precision Machinings
Very important application, such as the glass-cutting of hand-set lid, punching and ink removal etc..
High pulse energy, high-peak power picosecond pulse laser be usually solid state laser, by mode locking picosecond vibrate
Device and amplifier are constituted.Compared with mode locking solid laser oscillator, passive mode-locking optical fiber picosecond oscillator has low in cost, knot
The outstanding advantages such as structure is compact, easy to operate, good beam quality and stability are strong are widely answered as picosecond laser seed source
For high pulse energy, high-peak power picosecond pulse laser in.
The passive mode-locking optical fiber picosecond laser oscillator of most of commercial all uses semiconductor saturable absorber at present
(SESAM) Lai Shixian mode locking self-starting.But output power is the light on SESAM in the picosecond laser oscillator of tens milliwatts
Irradiation intensity is high, and the mode locking ability of SESAM is gradually degenerated, and causes the service life of picosecond laser seed source shorter.
Utility model content
The purpose of this utility model is to provide a kind of laser fiber picosecond seed sources, adjust oscillator by adjusting component
Mode locking self-starting power threshold, to reduce the light intensity of semiconductor saturable absorber, extending semiconductor can
The working life of saturated absorbing body, to extend the working life of mode locking picosecond laser.
To achieve the above object, the utility model embodiment provides the following technical solutions: a kind of laser fiber picosecond seed
Source receives what the pumping semiconductor laser provided including the pumping semiconductor laser for providing pump light and respectively
The oscillator and amplifier of pump light, the oscillator include the semiconductor saturable of the mode locking self-starting for the oscillator
Absorber and adjustment component for adjusting mode locking self-starting power threshold, the output end of the semiconductor saturable absorber
It is connected to the incidence end of the adjustment component, the output end of the oscillator is connected to the incidence end of the amplifier.
Further, the adjustment component includes the optics for adjusting the spot size of the semiconductor saturable absorber
Imaging device and for by the first coupler of coupling pump light to the oscillator, the semiconductor saturable absorber,
The optical imaging device and first coupler are successively set in the optical path of optical transport.
Further, the adjustment component further includes the polarization maintaining optical fibre for increasing light output stability, the polarization maintaining optical fibre
In optical path between the optical imaging device and first coupler.
Further, the oscillator further includes the gain fibre for amplifying the output light of the oscillator, the gain
The incidence end of optical fiber is connected to the output end of the adjustment component.
Further, the oscillator further includes the second coupler for dispersion compensation needed for providing maintenance mode locking, institute
The incidence end for stating the second coupler is connected to the output end of gain fibre.
Further, further include for after stopping to the light of feedback enter the oscillator the first fibre optic isolater, it is described
First fibre optic isolater is set in the optical path between second coupler and the amplifier.
It further, further include for pump light provided by the single pumping semiconductor laser to be separately input to institute
The beam splitter of oscillator and the amplifier is stated, the incidence end of the beam splitter and the pumping semiconductor laser output end connect
It is logical.
Further, further include for after stopping to the light of feedback enter the amplifier and the oscillator the second optical fiber
The incidence end of isolator, second fibre optic isolater is connected to the exit end of the amplifier.
Compared with prior art, the utility model has the beneficial effects that a kind of laser fiber picosecond seed source, by adjusting
Component adjusts the mode locking self-starting power threshold of oscillator, so that the light intensity of semiconductor saturable absorber is reduced,
The working life of semiconductor saturable absorber is extended, to extend the working life of mode locking picosecond laser.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of laser fiber picosecond seed source provided by the embodiment of the utility model；
Fig. 2 is a kind of structural frames of the adjustment component of laser fiber picosecond seed source provided by the embodiment of the utility model
Figure；
In appended drawing reference: 1- pumps semiconductor laser；2- oscillator；3- amplifier；4- semiconductor saturable absorber；
5- adjusts component；50- optical imaging device；51- polarization maintaining optical fibre；The first coupler of 52-；6- gain fibre；The first optical fiber of 7- every
From device；The second fibre optic isolater of 8-；9- beam splitter；The second coupler of 10-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of laser fiber picosecond seed source, including pumping semiconductor swashs
Light device 1, oscillator 2 and amplifier 3, wherein oscillator 2 includes semiconductor saturable absorber 4 and adjustment component 5, pump
Pu semiconductor laser 1 receives what pumping semiconductor laser 1 provided for providing pump light, oscillator 2 and amplifier 3 respectively
Pump light, semiconductor saturable absorber 4 are used for the mode locking self-starting of the oscillator 2.The semiconductor saturable absorber 4
Output end with it is described adjustment component 5 incidence end be connected to, the incidence end of the output end of the oscillator 2 and the amplifier 3
Connection.In the present embodiment, it is generally the case that realize mode locking self-starting only with semiconductor saturable absorber 4, however by
In the light intensity in the picosecond laser oscillator 2 that output power is tens milliwatts, in semiconductor saturable absorber 4
The mode locking ability of height, semiconductor saturable absorber 4 is gradually degenerated, and the service life that will lead to picosecond laser seed source shortens, because
This needs to be adjusted mode locking self-starting power threshold, is reduced the mode locking self-starting power threshold using adjustment component 5, drop
Light intensity in low semiconductor saturable absorber 4, to extend the working life of semiconductor saturable absorber 4.
The following are specific embodiments:
Optimize above scheme, referring to Fig. 1, the adjustment component 5 includes for adjusting the semiconductor saturable absorption
The optical imaging device 50 of the spot size of body 4 and for by the first coupler 52 of coupling pump light to the oscillator 2,
The semiconductor saturable absorber 4, the optical imaging device 50 and first coupler 52 are successively set on light biography
In defeated optical path.In the present embodiment, the mode of adjustment specifically first adjusts semiconductor saturable using optical imaging device 50
Spot size on absorber 4 reaches saturated absorption threshold value, and avoids damage to, and then passes through the first coupler 52 output to vibration again
It swings on device 2, used first coupler 52 is signal/pumping coupler.In addition, in the present embodiment used by optics at
As device 50 has much in the prior art, just no longer illustrated in greater detail herein.
Above scheme is advanced optimized, please refers to Fig. 1 and Fig. 2, the adjustment component 5 further includes steady for increasing light output
Qualitative polarization maintaining optical fibre 51, the polarization maintaining optical fibre 51 are set between the optical imaging device 50 and first coupler 52
In optical path.In the present embodiment, if the purpose of this polarization maintaining optical fibre 51 is the stability for increasing oscillator 2 and exporting.
As the prioritization scheme of the utility model embodiment, Fig. 1 and Fig. 2 are please referred to, the oscillator 2 further includes for putting
The gain fibre 6 of the output light of the big oscillator 2, the output end of the incidence end of the gain fibre 6 and the adjustment component 5
Connection.In the present embodiment, gain fibre 6 is gain media, amplifies the Ps Laser Pulse of input.
Above scheme is advanced optimized, Fig. 1 and Fig. 2 are please referred to, the adjustment component 5 further includes maintaining mode locking for providing
Second coupler 10 of required dispersion compensation, the incidence end of second coupler 10 are connected to the output end of gain fibre 6.
In the present embodiment, if the purpose of this second coupler 10 be to provide maintain mode locking needed for dispersion compensation, while be also resonance
The output coupler of chamber, specifically it is chirped fiber grating/output coupler.
Advanced optimize above scheme, please refer to Fig. 1 and Fig. 2, this seed source further include for after stopping to the light of feedback
Into the first fibre optic isolater 7 of the oscillator 2, first fibre optic isolater 7 is set to second coupler 10 and institute
It states in the optical path between amplifier 3.In the present embodiment, which is located at the outlet side of oscillator 2 and puts
The input side of big device 3, enters in oscillator 2 as the light fed back after blocking, avoids device damage.
As the prioritization scheme of the utility model embodiment, referring to Fig. 1, this seed source further includes single described for inciting somebody to action
Pump light provided by pumping semiconductor laser 1 is separately input to the beam splitter 9 of the oscillator 2 and the amplifier 3, institute
The incidence end for stating beam splitter 9 is connected to 1 output end of pumping semiconductor laser.It in the present embodiment, will in the prior art
Common two pumping semiconductor lasers 1 are changed to only with a pumping semiconductor laser 1, such as by beam splitter 9
This can both reduce cost, can also spatially make the more compact more small volume and less weight of laser.
As the prioritization scheme of the utility model embodiment, Fig. 1 and Fig. 2 are please referred to, this seed source further includes for stopping
The light fed back backward enters the second fibre optic isolater 8 of the amplifier 3 and the oscillator 2, second fibre optic isolater 8
Incidence end be connected to the exit end of the amplifier 3.In the present embodiment, second fibre optic isolater 8 and above-mentioned first
Fibre optic isolater 7 acts on identical, is for the light that feeds back after stopping and enters in amplifier 3 and oscillator 2, avoids device
Damage, only second fibre optic isolater 8 is installed in the outlet side of amplifier 3.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of laser fiber picosecond seed source, receive including the pumping semiconductor laser for providing pump light and respectively
The oscillator and amplifier for the pump light that the pumping semiconductor laser provides, it is characterised in that: the oscillator includes using
In the semiconductor saturable absorber of the mode locking self-starting of the oscillator and for adjusting mode locking self-starting power threshold
Component is adjusted, the output end of the semiconductor saturable absorber is connected to the incidence end of the adjustment component, the oscillator
Output end be connected to the incidence end of the amplifier.
2. a kind of laser fiber picosecond seed source as described in claim 1, it is characterised in that: the adjustment component includes being used for
Adjust the spot size of the semiconductor saturable absorber optical imaging device and for by coupling pump light to described
First coupler of oscillator, the semiconductor saturable absorber, the optical imaging device and first coupler
It is successively set in the optical path of optical transport.
3. a kind of laser fiber picosecond seed source as claimed in claim 2, it is characterised in that: the adjustment component further includes using
In the polarization maintaining optical fibre for increasing light output stability, the polarization maintaining optical fibre is set to the optical imaging device and first coupler
Between optical path on.
4. a kind of laser fiber picosecond seed source as described in claim 1, it is characterised in that: the oscillator further includes being used for
Amplify the gain fibre of the output light of the oscillator, the output end company of the incidence end of the gain fibre and the adjustment component
It is logical.
5. a kind of laser fiber picosecond seed source as claimed in claim 4, it is characterised in that: the oscillator further includes being used for
Second coupler of dispersion compensation needed for maintaining mode locking, the incidence end of second coupler and the output of gain fibre are provided
End connection.
6. a kind of laser fiber picosecond seed source as claimed in claim 5, it is characterised in that: further include after being used to stop to anti-
The light of feedback enters the first fibre optic isolater of the oscillator, and first fibre optic isolater is set to second coupler and institute
It states in the optical path between amplifier.
7. a kind of laser fiber picosecond seed source as described in claim 1, it is characterised in that: further include for will be single described
Pump light provided by pumping semiconductor laser is separately input to the beam splitter of the oscillator and the amplifier, and described point
The incidence end of beam device is connected to the pumping semiconductor laser output end.
8. a kind of laser fiber picosecond seed source as described in claim 1, it is characterised in that: further include after being used to stop to anti-
The light of feedback enter the amplifier and the oscillator the second fibre optic isolater, the incidence end of second fibre optic isolater with
The exit end of the amplifier is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398838.9U CN209561857U (en) | 2019-03-27 | 2019-03-27 | A kind of laser fiber picosecond seed source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398838.9U CN209561857U (en) | 2019-03-27 | 2019-03-27 | A kind of laser fiber picosecond seed source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209561857U true CN209561857U (en) | 2019-10-29 |
Family
ID=68311687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920398838.9U Active CN209561857U (en) | 2019-03-27 | 2019-03-27 | A kind of laser fiber picosecond seed source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209561857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916988A (en) * | 2020-06-11 | 2020-11-10 | 杭州奥创光子技术有限公司 | Adjusting device and adjusting method for mode-locked laser absorber |
| CN112271539A (en) * | 2020-10-12 | 2021-01-26 | 北京卓镭激光技术有限公司 | Power supply power-on method and device and SESAM picosecond optical fiber laser |
-
2019
- 2019-03-27 CN CN201920398838.9U patent/CN209561857U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916988A (en) * | 2020-06-11 | 2020-11-10 | 杭州奥创光子技术有限公司 | Adjusting device and adjusting method for mode-locked laser absorber |
| CN111916988B (en) * | 2020-06-11 | 2022-04-29 | 杭州奥创光子技术有限公司 | Adjusting device and adjusting method for mode-locked laser absorber |
| CN112271539A (en) * | 2020-10-12 | 2021-01-26 | 北京卓镭激光技术有限公司 | Power supply power-on method and device and SESAM picosecond optical fiber laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209561857U (en) | A kind of laser fiber picosecond seed source | |
| CN113410739A (en) | Pre-chirped management femtosecond pulse laser coherent synthesis amplifying device and system thereof | |
| US20200036152A1 (en) | Laser amplifier system | |
| CN205248608U (en) | High power flies a second fiber laser | |
| CN100492148C (en) | Whole optical fiber narrow linewidth hundred billisecond pulse signal system | |
| Zhang et al. | Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system | |
| CN211981125U (en) | Wide-repetition-frequency adjustable high-power ultrashort pulse fiber laser | |
| CN109273974B (en) | Wide-repetition-frequency adjustable high-power ultrashort pulse fiber laser | |
| CN207719581U (en) | All-fiber subnanosecond pulse laser based on MOPA structures | |
| CN202276060U (en) | Self-Raman frequency conversion self-locking mode solid laser | |
| CN109818241A (en) | A kind of high power super continuous spectrum laser system | |
| CN216413498U (en) | Laser device | |
| CN102201640B (en) | Watt-stage 1,050nm photonic crystal optical fiber pulse laser device and amplifying system thereof | |
| CN105305218A (en) | All solid state laser | |
| CN115693358A (en) | Wavelength-tunable single-frequency optical fiber amplifier with seed optical space coupling | |
| CN212033421U (en) | Frequency doubling pulse laser | |
| CN212875032U (en) | Annular single crystal fiber laser amplifier | |
| CN204030260U (en) | A kind of micro-slice laser amplifies output device | |
| CN201166768Y (en) | Full fibre-optical narrow-line broad pulse signal apparatus | |
| CN114415295A (en) | Light emitting device, optical module and method for improving optical power | |
| CN103346466A (en) | Laser regeneration amplifier | |
| CN209389441U (en) | A kind of high power super continuous spectrum laser system | |
| CN110048294B (en) | Method for generating high-power intermediate infrared ultrafast pulse laser | |
| CN209358055U (en) | Optical fiber laser | |
| CN113659415A (en) | Low-power double-pass pulse amplification light path structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200708 Address after: 1st floor, No.1 Workshop, Science Park, Huazhong University of science and technology, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN HUARUI ULTRA-FAST FIBER LASER TECHNOLOGY Co.,Ltd. Address before: 1903 robins lane, Holt, MI Patentee before: Liu Zhenlin |