CN205543680U - Fiber grating is as cubic solid laser of output cavity mirror - Google Patents
Fiber grating is as cubic solid laser of output cavity mirror Download PDFInfo
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- CN205543680U CN205543680U CN201620274699.5U CN201620274699U CN205543680U CN 205543680 U CN205543680 U CN 205543680U CN 201620274699 U CN201620274699 U CN 201620274699U CN 205543680 U CN205543680 U CN 205543680U
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- blocks
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- fiber grating
- laser
- cavity mirror
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Abstract
The utility model discloses a fiber grating is as cubic solid laser of output cavity mirror comprises the pumping semiconductor laser 1 that sets gradually from the input to the output, coupling optical system 2, cubic solid work substance 3, pattern matching lens 4, fiber grating 5, the light that pumping semiconductor laser 1 sent focuses on cubic solid work substance 3 through coupling optical system 2, cubic its left end face of solid work substance 3 plates high the passing through of system pumping semiconductor laser 1 emission wavelength and the high deielectric -coating of turning over of cubic solid work substance 3 emission wavelength, constitutes this bulk solid laser's the mirror that is all -trans, the pattern matching lens 4 for realize the pattern matching between cubic solid work substance 3 and the fiber grating 5, fiber grating 5 is as the output cavity mirror. This laser instrument passes through fiber grating as cubic solid laser's output cavity mirror, solved that the output of cubic solid laser fiber optic coupling, high -gain register for easy reference line restrain, narrow linewidth output and simple structure unable hold concurrently the problem.
Description
[technical field]
This utility model relates to field of photoelectric devices, is specifically related to a kind of solid state laser.
[background technology]
Laser instrument is since utility model, excellent with its good interference, monochromaticity, directivity etc.
Point has obtained studying widely and applying.Blocks of solid laser instrument output cavity mirror is the most average, plano-concave
Or planoconvex lens.After the laser coupled of output enters single-mode fiber, owing to coupling efficiency is low, often damage
Consumption > 50% even more power or energy.Export to obtain the laser of low gain, need in output
Design and be coated with the film layer of complexity on the mirror of chamber to suppress the operating of high gain lasers.Although optical fiber laser
Directly optical fiber coupling can export, but output spectral line is wider；And in order to obtain narrow-linewidth laser output,
Need to add the frequency-selecting optical element such as etalon, birefringent filter at intracavity, sometimes also need to use
Annular chamber suppression effects of spatial, structure is complicated.Optical fiber laser is for obtaining low gain laser line
Low temperature is needed to cool down even with liquid nitrogen, system complex.Optical fiber laser is in order to obtain narrow linewidth, low
Gain laser exports, the general method using seed source to amplify, therefore optical fiber coupling output, suppression height
Gain spectrum, narrow linewidth export technique become the focus of current laser field research.
[utility model content]
In order to solve the coupling output of blocks of solid laser fiber, the suppression of high-gain spectral line, narrow line
The problem that wide output and simple in construction cannot get both, this utility model provides one to use fiber grating to make
Blocks of solid laser instrument for output cavity mirror.
This utility model adopts the following technical scheme that, the block solid state laser of structure, by from input
Hold set gradually to outfan pumping semiconductor laser 1, coupling optical system 2, blocks of solid work
Make material 3, pattern match lens 4, fiber grating 5 form；
The coupled optical system of light 2 that pumping semiconductor laser 1 sends focuses on blocks of solid
Operation material 3；
Its left side of blocks of solid operation material 3 is coated with pumping semiconductor laser (1) and launches wavelength
High thoroughly and blocks of solid operation material (3) transmitted wave grows tall anti-deielectric-coating, constitute this blocks of solid laser
The total reflective mirror of device；
Pattern match lens 4, are used for realizing between blocks of solid operation material 3 and fiber grating 5
Pattern match；
Fiber grating 5 is as output cavity mirror.
Preferably, described fiber grating 5 is single mode list covering or single-mode double-clad optical fiber, optical fiber
Fibre core on inscribe and there is blocks of solid operation material 3 launch the bragg grating of wavelength.
Preferably, the reflectance of described fiber grating 5 is launched according to blocks of solid operation material 3
Wavelength is chosen between 60% to 98%, and 3dB reflection bandwidth is less than 0.2nm.
Preferably, described fiber grating 5 two ends are 8 degree of angles of wedge.
Preferably, described pumping semiconductor laser 1 operation wavelength is 660nm or 793nm
Or 808nm or 880nm or 980nm.
Preferably, described coupling optical system 2 can be optical fiber or spherical lens or aspheric surface saturating
Mirror or prism, it is achieved the coupling between pump light and laser cavity mould.
Preferably, described blocks of solid operation material 3 is the crystalline material being doped with rare earth ion
Or glass material.
Preferably, described blocks of solid operation material 3 right side is coated with blocks of solid operation material 3
Launch the antireflective film of wavelength.
Preferably, described pattern match lens 4 both ends of the surface are coated with blocks of solid operation material 3
The antireflective film of ejected wave length.
Preferably, described pattern match lens 4 are non-spherical lens or spherical lens or determine refraction
Rate lens or gradual index lens.
Advantageous Effects of the present utility model is: this utility model passes through fiber grating as block
The output cavity mirror of shape solid state laser, solves the coupling output of blocks of solid laser fiber, high-gain
The problem that spectral line suppression, narrow linewidth output and simple in construction cannot get both；Achieve blocks of solid laser
Direct Single-Mode Fiber Coupling output in the range of device emission spectra, the output of low gain spectral line, narrow-linewidth laser
Output.This laser fabrication difficulty is low, simple in construction, stable work in work, can be widely applied to light
The fields such as the seed source of fiber amplifier, additive mixing, optical fibre gyro, Fibre Optical Sensor.
[accompanying drawing explanation]
Fiber grating in Fig. 1 embodiment one is as the blocks of solid laser instrument of output cavity mirror
Structure composition schematic diagram.
[detailed description of the invention]
Technical scheme and technique effect in order to make this patent are clearer, below in conjunction with the accompanying drawings and
Specific implementation of the patent mode is described in detail by embodiment.
Embodiment one:
Such as Fig. 1, the fiber grating in the present embodiment as the blocks of solid laser instrument of output cavity mirror,
Including the pumping semiconductor laser 1 set gradually from input to outfan, coupling optical system 2,
Blocks of solid operation material 3, pattern match lens 4, fiber grating 5.Pumping semiconductor laser 1
The coupled optical system of light 2 sent focuses on blocks of solid operation material 3.
Pumping semiconductor laser 1 operation wavelength is 808nm.
Coupling optical system 2 can be non-spherical lens, is used for realizing pump light and laser cavity mould
Coupling between (the stable pattern that laser cavity mould is formed after referring to laser generation).
Blocks of solid operation material 3 is crystalline material or the glass material being doped with rare earth ion,
For the gain media of this blocks of solid laser instrument, such as Nd:YVO4 crystalline material, left side is coated with 808nm
The high total reflective mirror of the deielectric-coating composition solid state laser that 914nm low gain transmitted wave grows tall anti-thoroughly of wavelength.
Right side is coated with the antireflective film of 914nm wavelength, and this antireflective film can reduce cavity loss.
Pattern match lens 4 are to determine index lens (being called for short C-Lens).Realize blocks of solid work
Make the pattern match between material 3 and fiber grating 5.Pattern match lens 4 both ends of the surface are coated with 914nm
The antireflective film of wavelength, this antireflective film can reduce cavity loss.
Fiber grating 5 is single mode list cladded-fiber or single-mode double-clad optical fiber, on the fibre core of optical fiber
Inscribe the bragg grating of 914nm wavelength, constitute the output cavity mirror of laser instrument.Bragg fiber
Optical grating reflection rate is 98%, 3dB reflection bandwidth 0.1nm.Fiber grating 5 two ends are 8 degree of angles of wedge, i.e.
Become 8 degree of angle cuttings, self-oscillatory laser edge can be suppressed to reflect.Fiber grating 5 directly as
Laser chamber mirror, its structure is optical fiber structure, and a part of light reflects through fiber grating, another part
Light is through fiber grating coupling output, it is achieved that the direct Single-Mode Fiber Coupling of 914nm exports.
Blocks of solid laser instrument in the present embodiment, because of the feature of Fiber Bragg Grating FBG, to low
Gain spectrum has a high reflectance, and for other higher gain spectral line completely through, and cause damage
Consumption, plays the effect of suppression, so the output of low gain spectral line can be realized；And the reflection of fiber grating
It is the narrowest that rate bandwidth can make, and three dB bandwidth can be less than 0.2nm, therefore can realize narrow-linewidth laser
Output.
Embodiment two:
Fiber grating in the present embodiment as the blocks of solid laser instrument of output cavity mirror, structure and
Identical in embodiment one.
Pumping semiconductor laser 1 operation wavelength is 880nm.
Coupling optical system 2, is spherical lens, is used for realizing between pump light and laser cavity mould
Coupling.
Blocks of solid operation material 3, is Nd:YVO4 crystalline material, and left side is coated with 880nm ripple
Grow tall and deielectric-coating that 1064nm high-gain transmitted wave grows tall anti-constitutes the total reflective mirror of solid state laser.
Right side is coated with the antireflective film of 1064nm wavelength, reduces cavity loss.
Pattern match lens 4, are that gradual index lens (is called for short: G-Lens).Realize bulk
Pattern match between solid operation material 3 and fiber grating 5.Pattern match lens 4 both ends of the surface are plated
The antireflective film of 1064nm wavelength processed, reduces cavity loss.
Fiber grating 5 is single mode list cladded-fiber, and the fibre core of optical fiber is inscribed 1064nm wavelength
Bragg grating, constitutes the output cavity mirror of laser instrument.Bragg grating reflectance is 90%,
3dB reflection bandwidth 0.1nm.Fiber grating 5 two ends are 8 degree of angles of wedge, the cutting of 8 degree of angles, suppression
Self-oscillatory laser edge reflects.
Embodiment three:
Fiber grating in the present embodiment as the blocks of solid laser instrument of output cavity mirror, structure and
Identical in embodiment one.
Pumping semiconductor laser 1 operation wavelength is 808nm.
Coupling optical system 2 can be optical fiber or prism realizes between pump light and laser cavity mould
Coupling.
Blocks of solid operation material 3 is Nd:YAG crystalline material, and left side is coated with 808nm wavelength
The high total reflective mirror of the deielectric-coating composition solid state laser that 1112nm low gain transmitted wave grows tall anti-thoroughly.Right
End face is coated with the antireflective film of 1112nm wavelength, reduces cavity loss.
Pattern match lens 4 are to determine index lens, it is achieved blocks of solid operation material and optical fiber
Pattern match between grating.Pattern match lens both ends of the surface are coated with the antireflective film of 1112nm wavelength, subtract
Little cavity loss.
Fiber grating 5 is single mode list cladded-fiber, and the fibre core of optical fiber is inscribed 1112nm wavelength
Bragg grating, constitutes the output cavity mirror of laser instrument.Bragg grating reflectance is 96%,
3dB reflection bandwidth 0.1nm.Fiber grating two ends are 8 degree of angles of wedge, the cutting of 8 degree of angles, suppression from
The laser edge reflection of Induced Oscillation.
The foregoing is only the preferred embodiment of this patent, be not limited to this patent,
For a person skilled in the art, this patent can have various modifications and variations.All at this patent
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this
Within the protection domain of patent.
Claims (10)
1. fiber grating is as a blocks of solid laser instrument for output cavity mirror, by from input to output
End set gradually pumping semiconductor laser (1), coupling optical system (2), blocks of solid working substance
Matter (3), pattern match lens (4), fiber grating (5) form；It is characterized in that:
The coupled optical system of the light (2) that pumping semiconductor laser (1) sends focuses on blocks of solid work
Make material (3)；
Blocks of solid operation material (3) its left side is coated with pumping semiconductor laser (1) and launches wavelength
High thoroughly and blocks of solid operation material (3) transmitted wave grows tall anti-deielectric-coating, constitute this blocks of solid laser
The total reflective mirror of device；
Pattern match lens (4), are used for realizing between blocks of solid operation material (3) and fiber grating (5)
Pattern match；
Fiber grating (5) is as output cavity mirror.
2. fiber grating as claimed in claim 1 is as the blocks of solid laser instrument of output cavity mirror, its
It is characterised by: described fiber grating (5) is single mode list covering or single-mode double-clad optical fiber, the fibre core of optical fiber
Upper inscription has blocks of solid operation material (3) and launches the bragg grating of wavelength.
3. fiber grating as claimed in claim 2 is as the blocks of solid laser instrument of output cavity mirror, its
It is characterised by: the reflectance of described fiber grating (5) launches wavelength according to blocks of solid operation material (3)
Being chosen between 60% to 98%, 3dB reflection bandwidth is less than 0.2nm.
4. the fiber grating as described in arbitrary in claims 1 to 3 is as the blocks of solid of output cavity mirror
Laser instrument, it is characterised in that: described fiber grating (5) two ends are 8 degree of angles of wedge.
5. the fiber grating as described in arbitrary in claims 1 to 3 is as the blocks of solid of output cavity mirror
Laser instrument, it is characterised in that: described pumping semiconductor laser (1) operation wavelength be 660nm or
793nm or 808nm or 880nm or 980nm.
6. the fiber grating as described in arbitrary in claims 1 to 3 is as the blocks of solid of output cavity mirror
Laser instrument, it is characterised in that: described coupling optical system (2) be optical fiber or spherical lens or aspheric surface saturating
Mirror or prism, it is achieved the coupling between pump light and laser cavity mould.
7. the fiber grating as described in arbitrary in claims 1 to 3 is as the blocks of solid of output cavity mirror
Laser instrument, it is characterised in that: described blocks of solid operation material (3) is the crystal being doped with rare earth ion
Material or glass material.
8. fiber grating as claimed in claim 7 is as the blocks of solid laser instrument of output cavity mirror, its
It is characterised by: described blocks of solid operation material (3) right side is coated with blocks of solid operation material (3) and sends out
The antireflective film of ejected wave length.
9. fiber grating as claimed in claim 1 is as the blocks of solid laser instrument of output cavity mirror, its
It is characterised by: described pattern match lens (4) both ends of the surface are coated with blocks of solid operation material (3) transmitted wave
Long antireflective film.
10. fiber grating as claimed in claim 1 is as the blocks of solid laser instrument of output cavity mirror,
It is characterized in that: described pattern match lens (4) are non-spherical lens or spherical lens or to determine refractive index saturating
Mirror or gradual index lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620274699.5U CN205543680U (en) | 2016-04-01 | 2016-04-01 | Fiber grating is as cubic solid laser of output cavity mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620274699.5U CN205543680U (en) | 2016-04-01 | 2016-04-01 | Fiber grating is as cubic solid laser of output cavity mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205543680U true CN205543680U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620274699.5U Expired - Fee Related CN205543680U (en) | 2016-04-01 | 2016-04-01 | Fiber grating is as cubic solid laser of output cavity mirror |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633783A (en) * | 2016-04-01 | 2016-06-01 | 北京理工大学珠海学院 | Block solid laser taking fiber grating as output endoscope |
| CN107370010A (en) * | 2017-06-28 | 2017-11-21 | 聊城大学 | A kind of optical fiber laser |
-
2016
- 2016-04-01 CN CN201620274699.5U patent/CN205543680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633783A (en) * | 2016-04-01 | 2016-06-01 | 北京理工大学珠海学院 | Block solid laser taking fiber grating as output endoscope |
| CN107370010A (en) * | 2017-06-28 | 2017-11-21 | 聊城大学 | A kind of optical fiber laser |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |