CN206498080U - A kind of pre-implant formula single frequency optical fiber laser - Google Patents
A kind of pre-implant formula single frequency optical fiber laser Download PDFInfo
- Publication number
- CN206498080U CN206498080U CN201720152498.2U CN201720152498U CN206498080U CN 206498080 U CN206498080 U CN 206498080U CN 201720152498 U CN201720152498 U CN 201720152498U CN 206498080 U CN206498080 U CN 206498080U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- port
- grating
- gain fibre
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of pre-implant formula single frequency optical fiber laser, pump light source, gain fibre, output isolator are connected with the first port of wavelength division multiplexer, second port, the 3rd port respectively, narrow band fiber bragg grating, band optical fiber grating, high anti-fiber grating on gain fibre are collectively forming self-locking mechanism, and gain fibre has pyramidal structure close to second port one end.Pass through the pre-implant formula single frequency optical fiber laser of above-mentioned optimization design, it is simple and reliable for structure, the pre-implant of single-frequency seed light is realized using the band optical fiber grating inscribed on gain fibre, suppress other laser longitudinal module resonance to realize high efficiency single-frequency laser resonance by gain competition, obtain video stretching extremely narrow single-frequency laser, single-frequency laser to phase shift length adjustment by that can realize laser resonance efficiency optimization, single-frequency laser realizes the control for exporting zlasing mode by the tapered distal end of gain fibre, greatly improves the beam quality in gain fibre amplification process.
Description
Technical field
The utility model is related to field of laser device technology, more particularly to a kind of pre-implant formula single frequency optical fiber laser and its system
Make method.
Background technology
Single-frequency laser light source is because the factor such as its output power stability and phase continuity is led in optic communication and light sensing
Domain has light source used in extremely strong application, the LIGO gravitational wave observation experiments of recent Nature magazine rans to be single-frequency laser
Light source, traditional single-frequency laser production method is largely semiconductor DFB or single longitudinal mode solid state laser and single longitudinal mode
Optical fiber laser.In semiconductor DFB, because cavity length is extremely short and gain media homogeneously broadening characteristic swashs it
Light output frequency bandspread is generally MHz magnitudes.Existing single longitudinal mode solid or optical fiber laser are because of longitudinal mode selection technology simultaneously
Introducing causes laser structure extremely complex, and laser output power stability is poor.
Utility model content
To solve technical problem present in background technology, the utility model proposes a kind of pre-implant formula single frequency fiber laser
Device.
The utility model proposes a kind of pre-implant formula single frequency optical fiber laser, including：Pump light source, wavelength division multiplexer,
Gain fibre, output isolator；
Wavelength division multiplexer is provided with first port, second port, the 3rd port, and pump light source is connected to first port
To first port input light；
Gain fibre one end is connected with second port, and gain fibre is provided with narrow band fiber bragg grating, band optical fiber grating, height
Anti- fiber grating, narrow band fiber bragg grating, band optical fiber grating, high anti-fiber grating away from wavelength division multiplexer direction on successively
Set, be spaced pre-determined distance between narrow band fiber bragg grating and band optical fiber grating, high anti-fiber grating and band optical fiber grating it
Between spaced a predetermined distance, gain fibre has pyramidal structure and its outer radial wavelength division multiplexer direction close to wavelength division multiplexer one end
It is gradually reduced；
Output isolator and the 3rd port are connected to the signal light output of wavelength division multiplexer.
Preferably, gain fibre uses rare earth ion doped fiber.
Preferably, band optical fiber grating includes two grating sections and the phase shift section between two grating sections, phase shift section
Width is the odd-multiple of the screen periods of grating section.
Preferably, the second port welding cascade of gain fibre and wavelength division multiplexer.
In the utility model, the pre-implant formula single frequency optical fiber laser proposed, pump light source, gain fibre, output every
It is connected respectively with the first port of wavelength division multiplexer, second port, the 3rd port from device, the narrow band fiber light on gain fibre
Grid, band optical fiber grating, high anti-fiber grating are collectively forming self-locking mechanism, and gain fibre has cone close to second port one end
Shape structure.It is simple and reliable for structure by the pre-implant formula single frequency optical fiber laser of above-mentioned optimization design, carved using on gain fibre
The band optical fiber grating write realizes the pre-implant of single-frequency seed light, and other laser longitudinal module resonance are suppressed so as to reality by gain competition
Existing high efficiency single-frequency laser resonance, obtains video stretching extremely narrow single-frequency laser, and single-frequency laser is by can to phase shift length adjustment
Laser resonance efficiency optimization is realized, single-frequency laser realizes the control for exporting zlasing mode by the tapered distal end of gain fibre, greatly
The big beam quality improved in gain fibre amplification process.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of pre-implant formula single frequency optical fiber laser structural representation.
Embodiment
As shown in figure 1, Fig. 1 be the utility model proposes a kind of pre-implant formula single frequency optical fiber laser structural representation
Figure.
Reference picture 1, the utility model proposes a kind of pre-implant formula single frequency optical fiber laser, including：Pump light source 1, ripple
Division multiplexer 2, gain fibre 3, output isolator 4；
Wavelength division multiplexer 2 is provided with first port, second port, the 3rd port, and pump light source 1 is connected use with first port
In to first port input light；
The one end of gain fibre 3 is connected with second port, and gain fibre 3 is provided with narrow band fiber bragg grating 31, band optical fiber light
Grid 32, high anti-fiber grating 33, narrow band fiber bragg grating 31, band optical fiber grating 32, high anti-fiber grating 33 are answered away from wavelength-division
Set gradually with the direction of device 2, pre-determined distance, high reflective fibre are spaced between narrow band fiber bragg grating 31 and band optical fiber grating 32
Between grating 33 and band optical fiber grating 32 spaced a predetermined distance, gain fibre 3 has taper knot close to the one end of wavelength division multiplexer 2
Structure and its direction of outer radial wavelength division multiplexer 2 is gradually reduced；
Output isolator 4 and the 3rd port is connected to the signal light output of wavelength division multiplexer 2.
In the specific work process of the pre-implant formula single frequency optical fiber laser of the present embodiment, the pump light that pump light source is sent
Enter gain fibre via wavelength division multiplexer, in gain fibre, pump light initially enters narrow band fiber bragg grating, subsequently into width
With pre-implant seed light of the simple signal light as whole laser is inspired in fiber grating, then simple signal light enters wide
With the interval between fiber grating and high anti-fiber grating, the signal enhancing in gain fibre is realized, then enhanced list
Frequency flashlight is reflected into high anti-fiber grating, and the simple signal light after reflection after strengthening in band optical fiber grating again
A middle part is continued in resonator by reflection, and another part enters wavelength division multiplexer by second port, eventually passes through output
Isolator outgoing；In resonator, optical-fiber laser is realized in laser resonance because gain competition is suppressed other laser longitudinal modules
High efficiency single-frequency laser resonance, single-frequency laser realizes the control for exporting zlasing mode by the tapered distal end of gain fibre, significantly
Improve the beam quality in gain fibre amplification process.
In the present embodiment, the pre-implant formula single frequency optical fiber laser proposed, pump light source, gain fibre, output every
It is connected respectively with the first port of wavelength division multiplexer, second port, the 3rd port from device, the narrow band fiber light on gain fibre
Grid, band optical fiber grating, high anti-fiber grating are collectively forming self-locking mechanism, and gain fibre has cone close to second port one end
Shape structure.It is simple and reliable for structure by the pre-implant formula single frequency optical fiber laser of above-mentioned optimization design, carved using on gain fibre
The band optical fiber grating write realizes the pre-implant of single-frequency seed light, and other laser longitudinal module resonance are suppressed so as to reality by gain competition
Existing high efficiency single-frequency laser resonance, obtains video stretching extremely narrow single-frequency laser, and single-frequency laser is by can to phase shift length adjustment
Laser resonance efficiency optimization is realized, single-frequency laser realizes the control for exporting zlasing mode by the tapered distal end of gain fibre, greatly
The big beam quality improved in gain fibre amplification process.
In a specific embodiment, gain fibre 3 uses rare earth ion doped fiber
In a specific embodiment, band optical fiber grating 32 includes two grating sections and the phase shift between two grating sections
Section, the width of phase shift section is the odd-multiple of the screen periods of grating section.
In a specific embodiment, the second port welding of gain fibre 3 and wavelength division multiplexer 2 is cascaded.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (4)
1. a kind of pre-implant formula single frequency optical fiber laser, it is characterised in that including：Pump light source (1), wavelength division multiplexer (2), increasing
Beneficial optical fiber (3), output isolator (4)；
Wavelength division multiplexer (2) is provided with first port, second port, the 3rd port, and pump light source (1) is connected use with first port
In to first port input light；
Gain fibre (3) one end is connected with second port, and gain fibre (3) is provided with narrow band fiber bragg grating (31), band optical fiber
Grating (32), high anti-fiber grating (33), narrow band fiber bragg grating (31), band optical fiber grating (32), high anti-fiber grating (33)
Away from wavelength division multiplexer (2) direction on set gradually, between narrow band fiber bragg grating (31) and band optical fiber grating (32) between
Every pre-determined distance, gain fibre (3) is close between high anti-fiber grating (33) and band optical fiber grating (32) spaced a predetermined distance
Wavelength division multiplexer (2) one end has pyramidal structure and its outer radial wavelength division multiplexer (2) direction is gradually reduced；
Output isolator (4) is connected to the signal light output of wavelength division multiplexer (2) with the 3rd port.
2. pre-implant formula single frequency optical fiber laser according to claim 1, it is characterised in that gain fibre (3) is using dilute
The sub- doped fiber of grogs.
3. pre-implant formula single frequency optical fiber laser according to claim 1, it is characterised in that band optical fiber grating (32) is wrapped
Two grating sections and the phase shift section between two grating sections are included, the width of phase shift section is the odd number of the screen periods of grating section
Times.
4. pre-implant formula single frequency optical fiber laser according to claim 1, it is characterised in that gain fibre (3) and wavelength-division
The second port welding cascade of multiplexer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152498.2U CN206498080U (en) | 2017-02-20 | 2017-02-20 | A kind of pre-implant formula single frequency optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152498.2U CN206498080U (en) | 2017-02-20 | 2017-02-20 | A kind of pre-implant formula single frequency optical fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206498080U true CN206498080U (en) | 2017-09-15 |
Family
ID=59805557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720152498.2U Active CN206498080U (en) | 2017-02-20 | 2017-02-20 | A kind of pre-implant formula single frequency optical fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206498080U (en) |
-
2017
- 2017-02-20 CN CN201720152498.2U patent/CN206498080U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103414093B (en) | A kind of all-fiber pulse laser | |
| CN103840365B (en) | Based on the apparatus and method that the adjustable microwave signal of multi-wavelength Brillouin laser produces | |
| CN104201545A (en) | Ultra-wideband supercontinuum source based on two-waveband fiber optic laser | |
| CN104009378B (en) | A kind of visible ray super continuum source based on green-light fiber laser pumping | |
| CN105826800B (en) | All-fiber broadband flat mid-infrared super-continuum spectrum light source | |
| CN104300344A (en) | High-power and tunable pulse fiber laser device | |
| CN104734800A (en) | Optical multiplexer and emitting light device | |
| CN104064951A (en) | Passive Q-switched laser based on nonlinear optical material molybdenum disulfide | |
| CN104283097A (en) | 780 nm high-power optical-fiber femtosecond laser device | |
| CN108767637A (en) | THz high repetition frequency high power femto second optical fiber lasers based on dispersive wave | |
| CN103915750A (en) | Optical-fiber laser device | |
| CN102967981A (en) | Super-continuous spectrum light source based on multicore photonic crystal fiber | |
| CN103995413A (en) | Ytterbium-doped full-optical-fiber optical frequency comb system | |
| CN101013249A (en) | Narrow pulse fiber amplifier | |
| CN106602395A (en) | Ultra-wideband random fiber laser based on multi-wavelength pumping | |
| CN202995205U (en) | Multicore photonic crystal fiber based supercontinuum source | |
| CN103296567B (en) | Ultra-narrow-linewidth nonlinear gain amplification multi-wavelength fiber laser | |
| CN201332211Y (en) | Visible light enhancement super continuous spectrum laser system with full optical fiber structure | |
| CN107181161B (en) | A kind of multi-wavelength narrow linewidth ring cavity optical laser system based on phase-shifted fiber grating | |
| CN203071392U (en) | Super-continuum spectrum photonic crystal optical fiber laser | |
| KR20140068795A (en) | Broadband light source | |
| CN113054520B (en) | Pure visible light super-continuum spectrum light source based on semiconductor laser diode pumping | |
| CN101718891A (en) | Double coupled erbium-doped fiber ring optical signal retarder | |
| CN106684675A (en) | Single-frequency fiber laser and preparation method thereof | |
| CN206498080U (en) | A kind of pre-implant formula single frequency optical fiber laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |