CN109950785A - The outside cavity gas laser of tunable wave length - Google Patents
The outside cavity gas laser of tunable wave length Download PDFInfo
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- CN109950785A CN109950785A CN201711397018.XA CN201711397018A CN109950785A CN 109950785 A CN109950785 A CN 109950785A CN 201711397018 A CN201711397018 A CN 201711397018A CN 109950785 A CN109950785 A CN 109950785A
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Abstract
Present invention discloses a kind of outside cavity gas lasers of tunable wave length.The outside cavity gas laser includes the laser gain chip successively arranged, collimation lens, tunable optic filter and reflecting mirror, the laser gain chip is for issuing light beam, the collimation lens is used to the beam collimation be collimated light beam, the reflecting mirror includes the third end face of the relatively close tunable optic filter and the 4th end face for being relatively distant from the tunable optic filter, the light beam that the laser gain chip issues successively is emitted to the collimation lens, the tunable optic filter and the reflecting mirror, part reflective portion transmission film is coated on the third end face, the third end face and an end face of the laser gain chip constitute two external cavity surfaces of resonant cavity, 4th end face is set as the inclined surface for having angle with the collimated light beam or curved surface.The reflected light of 4th end face of the invention does not carry out resonance in the resonant cavity, avoids the influence to external cavity mode.
Description
Technical field
The present invention relates to field of laser device technology more particularly to a kind of outside cavity gas lasers of tunable wave length.
Background technique
In the laser of numerous tunable wave lengths, outside cavity gas laser structure has that line width, tuning range be big, output work
The remarkable advantages such as rate height and side mode suppression ratio height.Current outside cavity gas laser, including laser gain chip and reflecting mirror, reflecting mirror
Including front end face and rear end face, the front end face is compared to the rear end face close to the laser gain chip and the front end face
It is coated with part reflectance coating；And the resonant cavity of outside cavity gas laser is realized based on F-P cavity plane reflection principle, one external cavity surface is institute
The end face that reflectance coating is coated on laser gain chip is stated, another external cavity surface is the front end face of the reflecting mirror.
In practical application, the reflected light of the rear end face of the reflecting mirror can carry out resonance in part return resonant cavity,
It is affected to external cavity mode, so that the single mode of outside cavity gas laser final output is distorted, Output optical power reduces.
Summary of the invention
The purpose of the present invention is to provide a kind of outside cavity gas lasers of tunable wave length, at least to solve reflecting mirror rear end face
Reflected light the problem of external cavity mode is impacted.
To achieve the above object, one embodiment of the invention provides a kind of outside cavity gas laser of tunable wave length, described outer
Cavity laser includes the laser gain chip successively arranged, collimation lens, tunable optic filter and reflecting mirror, and the laser increases
Beneficial chip is used to the beam collimation be collimated light beam for issuing light beam, the collimation lens, and the reflecting mirror includes phase
To close to the third end face of the tunable optic filter and being relatively distant from the 4th end face of the tunable optic filter, the laser
The light beam that chip gain issues successively is emitted to the collimation lens, the tunable optic filter and the reflecting mirror, and described the
It is coated with part reflective portion transmission film on three end faces, an end face of the third end face and the laser gain chip constitutes humorous
Two external cavity surfaces of vibration chamber, the 4th end face are set as the inclined surface for having angle with the collimated light beam or curved surface.
In further embodiment of the present invention, the third end face of the reflecting mirror is perpendicular to the flat of the collimated light beam
Face, the 4th end face of the reflecting mirror are set as the inclined surface for having angle with the collimated light beam.
In further embodiment of the present invention, the angle [alpha] of the angle meets 0 ° of α≤86 ° <.
In further embodiment of the present invention, the outside cavity gas laser further includes the 4th end for being set to the reflecting mirror
The attachment lens of face side, the attachment lens are configured as: the light beam of the reflecting mirror are transmitted from the 4th end face, thoroughly
After projecting the attachment lens, is reverted to by the attachment lens and transmitted with the collimated light beam cocurrent and parallel.
In further embodiment of the present invention, the attachment lens includes the 5th end face of the relatively close reflecting mirror
With the 6th end face for being relatively distant from the reflecting mirror；6th end face is parallel to the third end face, and the 5th end face is flat
Row is in the 4th end face.
In further embodiment of the present invention, the outside cavity gas laser further includes isolator, and the isolator is set to
Between the attachment lens and the reflecting mirror, so as to be successively emitted from the light beam that the 4th end face transmits the reflecting mirror
To the isolator and the attachment lens.
In further embodiment of the present invention, the reflecting mirror is set as plano-convex lens, and the third end face is vertical
In the plane of the collimated light beam, the 4th end face is set as convex lens face.
In further embodiment of the present invention, the focus of the reflecting mirror falls in the light output end of the outside cavity gas laser
On；The outside cavity gas laser further includes isolator, transmits the light beam of the reflecting mirror through the isolation from the 4th end face
The light output end of the outside cavity gas laser is emitted to after device.
In further embodiment of the present invention, the laser gain chip includes be relatively distant from the collimation lens
The second end face of one end face and the relatively close collimation lens, the first end face constitute an exocoel of the resonant cavity
Face.
In further embodiment of the present invention, total reflection film is coated in the first end face, the outside cavity gas laser is also
Including the backlight detection chip being placed in the resonant cavity.
Compared with prior art, the beneficial effects of the present invention are: the reflected light of the 4th end face no longer with it is described flat
Row light beam is parallel, whether is it resonance can not be carried out by returning in the resonant cavity, avoids the influence to external cavity mode,
It prevents the single mode of outside cavity gas laser final output to be distorted, ensure that Output optical power.
Detailed description of the invention
Fig. 1 is the structural perspective of the outside cavity gas laser of the tunable wave length of the embodiment of the present invention 1；
Fig. 2 is the structure top view of the outside cavity gas laser of the tunable wave length of the embodiment of the present invention 1；
Fig. 3 is the structural front view of the outside cavity gas laser of the tunable wave length of the embodiment of the present invention 1；
Fig. 4 is the structural perspective of the outside cavity gas laser of the tunable wave length of the embodiment of the present invention 2；
Fig. 5 is the structure top view of the outside cavity gas laser of the tunable wave length of the embodiment of the present invention 2；
Fig. 6 is the structural front view of the outside cavity gas laser of the tunable wave length of the embodiment of the present invention 2.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
Embodiment 1
Join FIG. 1 to FIG. 3, one embodiment of the invention provides a kind of outside cavity gas laser 100 of tunable wave length, which swashs
Light device 100 include the laser gain chip 11, collimation lens 12, tunable optic filter 13 successively arranged in the optical path of light beam with
And reflecting mirror 14.
Clearly to express described position and direction in the application, join Fig. 1, along the optical routing laser gain core of light beam
The direction definition of 11 directional mirror 14 of piece is " rear ", conversely, being directed toward the direction definition of laser gain chip 11 by reflecting mirror 14
For " preceding ".Accordingly it is to be understood that laser gain chip 11, collimation lens 12, tunable optic filter 13, reflecting mirror 14 are by preceding
It successively arranges backward.
Laser gain chip 11 is used to issue divergent beams, and can amplify divergent beams gain.Laser gain chip
11 light beams issued are successively emitted to collimation lens 12, tunable optic filter 13 and reflecting mirror 14.Laser gain chip 11 includes
First end face 11a and second end face 11b, in which: first end face 11a is relatively distant from collimation lens 12, and second end face 11b is opposite to be leaned on
Nearly collimation lens 12, that is to say, that first end face 11a is located at the front of second end face 11b, first end face 11a, second end face
11b respectively constitutes the front end face of laser gain chip 11, rear end face.
Anti-reflection film is coated on second end face 11b, second end face 11b constitutes the output end of laser gain chip 11；First end
It is coated with total reflection film on the 11a of face, constitutes an external cavity surface of the resonant cavity of outside cavity gas laser 100.
Collimation lens 12 is located at the side second end face 11b of laser gain chip 11, namely is located at laser gain chip 11
Output end side, be used to the divergent beams projected from the second end face 11b of laser gain chip 11 being collimated into directional light
Beam, the collimated light beam are parallel with the optical axis of outside cavity gas laser 100.
Tunable optic filter 13 is used to lock the output frequency of outside cavity gas laser 100, namely to light beam (such as described directional light
Beam) transmission filter is carried out, the light of other wave-length coverages is filtered with allowing the light transmission of particular range wavelength.In this reality
It applies in example, tunable optic filter 13 is specifically configured to vernier tuning mechanism comprising spaced etalon 131, etalon
132 and etalon 133.
Reflecting mirror 14 includes third end face 14a and the 4th end face 14b, in which: the relatively close tunable filter of third end face 14a
Wave device 13, the 4th end face 14b are relatively distant from tunable optic filter 13, that is to say, that third end face 14a is located at the 4th end face 14b's
Front, third end face 14a, the 4th end face 14b respectively constitute the front end face of reflecting mirror 14, rear end face.
It is coated with part reflective portion transmission film on the 14a of third end face, can specifically be coated with 30% reflection, 70% transmission film.This
Sample is incident to the collimated light beam on the 14a of third end face from tunable optic filter 13, partially anti-forward by third end face 14a
It is emitted back towards tunable optic filter 13, partially 14a is transmitted backward in reflecting mirror 14 from third end face.That is, laser gain chip 11
First end face 11a to the third end face 14a of reflecting mirror 14 between formed outside cavity gas laser 100 resonant cavity, wherein first end
Face 11a, third end face 14a respectively constitute two external cavity surfaces of the resonant cavity.In this way, third end face 14a is described humorous except constituting
It shakes outside the external cavity surface of chamber, while third end face 14a also constitutes the light end out of the resonant cavity, it is only necessary to after the 14a of third end face
Mono- secondary coupling of Fang Jinhang, coupling difficulty is small, and coupling tolerance is high, and compact-sized, simple process.
4th end face 14b is set as the inclined surface for having angle with the collimated light beam.In this way, saturating from third end face 14a
The collimated light beam in reflecting mirror 14 is injected, partially transmits reflecting mirror 14 backward from the 4th end face 14b to ultimately form
The resonant cavity goes out light, partially by the 4th end face 14b reflected frontward；However, since the 4th end face 14b is obliquely arranged, quilt
The segment beam of 4th end face 14b reflected frontward is no longer parallel with the collimated light beam, regardless of whether returning to the resonance
Intracavitary to carry out resonance, the influence so as to avoid the segment beam to external cavity mode prevents outside cavity gas laser 100 final
The single mode of output is distorted, and ensure that Output optical power.
In the present embodiment, reflecting mirror 14 is set as wedge structure.Specifically, third end face 14a is perpendicular to described flat
The plane of row light beam, the 4th end face 14b are the clinoplain for having constant angle with the collimated light beam, wherein the angle
Angle [alpha] meet 0 ° of α≤86 ° <.Namely the 4th end face 14b and third end face 14a there is angle to be more than or equal to 4 ° and less than 90 °
Slanted angle.
Further, outside cavity gas laser 100 further includes being set to 14 rear of reflecting mirror and successively setting in the optical path of light beam
The isolator 15 and coupled lens 17 set, the light beam transmitted from the 4th end face 14b pass through isolator 15 after through coupled lens 17
It is coupled on the light output end of outside cavity gas laser 100, to complete the optical coupling out of outside cavity gas laser 100.It is isolated by setting
Device 15 can avoid the light beam in optical fiber link and be incident on forward in the resonant cavity of outside cavity gas laser 100 and to external cavity mode
It impacts.In the present embodiment, outside cavity gas laser 100 is coupled with fiber adapter 18, correspondingly, outside cavity gas laser
100 light output end is formed on the fiber end face of fiber adapter 18.
Further, outside cavity gas laser 100 further includes the attachment lens 16 for correcting beam Propagation direction, attachment lens
16 are specifically set to the 4th end face side 14b of reflecting mirror 14, namely are set in the rear optical path of reflecting mirror 14.Light beam is from
After four end face 14b transmit reflecting mirror 14 backward, the direction of propagation of the relatively described collimated light beam in the direction of propagation of light beam occurs inclined
Turn, and attachment lens 16 is configured as: the light beam of reflecting mirror 14 is transmitted from the 4th end face 14b, after transmiting attachment lens 16,
The light beam is reverted to by attachment lens 16 and is transmitted with the collimated light beam cocurrent and parallel, to guarantee light path coaxial, is easy to implement
It is compact-sized.
Specifically, attachment lens 16 includes the 5th end face 16a and the 6th end face 16b, in which: the 5th end face 16a is opposite to be leaned on
Near reflex mirror 14, the 6th end face 16b are relatively distant from reflecting mirror 14, that is to say, that before the 5th end face 16a is located at the 6th end face 16b
Side, the 5th end face 16a, the 6th end face 16b respectively constitute the front end face of attachment lens 16, rear end face.
Attachment lens 16 is set as wedge structure similar with reflecting mirror 14.5th end face 16a is parallel to the 4th end face
14b, to have the clinoplain of constant angle with the collimated light beam, wherein 0 ° of < α of angle [alpha] satisfaction of the angle≤
86°；6th end face 16b is parallel to third end face 14a, is the plane perpendicular to the collimated light beam, that is, the 5th end face
There is 16a and the 6th end face 16b angle to be more than or equal to 4 ° and the slanted angle less than 90 °.
In the present embodiment, isolator 15 is set between attachment lens 16 and reflecting mirror 14, in this way, from the 4th end face
The light beam that 14b transmits reflecting mirror 14 is successively emitted to isolator 15 and attachment lens 16, thus not only can guarantee light path coaxial,
The light beam that can be also further ensured that in optical fiber link is incident on forward in the resonant cavity of outside cavity gas laser 100 and external cavity mold
Formula impacts.
In the present embodiment, outside cavity gas laser 100 further includes backlight detection chip (not shown), the backlight detection chip
Light extraction efficiency in the resonant cavity and for monitoring outside cavity gas laser 100.
Further, in the present embodiment, outside cavity gas laser 100 further includes pedestal 191 and semiconductor cooler 19.Laser
One or more of components such as chip gain 11, collimation lens 12, the backlight detection chip are laid on pedestal 191；Base
Seat 191 is set as heat-conducting, and it is laid on semiconductor cooler 19.Semiconductor cooler 19 can be used for carrying out temperature
Regulate and control so that one or more work in the components such as laser gain chip 11, collimation lens 12, described backlight detection chip exist
Under the conditions of the temperature needed.
Compared with prior art, the outside cavity gas laser 100 of the present embodiment has the advantages that the 4th end face 14b's
Reflected light does not carry out resonance in the resonant cavity, avoids the influence to external cavity mode, prevents outside cavity gas laser 100 final defeated
Single mode out is distorted, and ensure that Output optical power；By the way that isolator 15 is arranged, the light beam in optical fiber link is avoided to enter forward
It is mapped in resonant cavity and external cavity mode is impacted；By the way that lens 16 are arranged, guarantee light path coaxial, realize compact-sized；The
Three end face 14a had both constituted the external cavity surface of the resonant cavity, while also constituting the light end out of the resonant cavity, it is only necessary at third end
The face rear 14a carries out a secondary coupling, and coupling difficulty is small, and coupling tolerance is high, and compact-sized, simple process.
Embodiment 2
Join Fig. 4~Fig. 6, one embodiment of the invention provides a kind of outside cavity gas laser 200 of tunable wave length, which swashs
Light device 200 include the laser gain chip 21, collimation lens 22, tunable optic filter 23 successively arranged in the optical path of light beam with
And reflecting mirror 24.
Clearly to express described position and direction in the application, join Fig. 4, along the optical routing laser gain core of light beam
The direction definition of 21 directional mirror 24 of piece is " rear ", conversely, being directed toward the direction definition of laser gain chip 21 by reflecting mirror 24
For " preceding ".Accordingly it is to be understood that laser gain chip 21, collimation lens 22, tunable optic filter 23, reflecting mirror 24 are by preceding
It successively arranges backward.
Laser gain chip 21 is used to issue divergent beams, and can amplify divergent beams gain.Laser gain chip
21 light beams issued are successively emitted to collimation lens 22, tunable optic filter 23 and reflecting mirror 24.Laser gain chip 21 includes
First end face 21a and second end face 21b, in which: first end face 21a is relatively distant from collimation lens 22, and second end face 21b is opposite to be leaned on
Nearly collimation lens 22, that is to say, that first end face 21a is located at the front of second end face 21b, first end face 21a, second end face
21b respectively constitutes the front end face of laser gain chip 21, rear end face.
Anti-reflection film is coated on second end face 21b, second end face 21b constitutes the output end of laser gain chip 21；First end
It is coated with total reflection film on the 21a of face, constitutes an external cavity surface of the resonant cavity of outside cavity gas laser 200.
Collimation lens 22 is located at the side second end face 21b of laser gain chip 21, namely is located at laser gain chip 21
Output end side, be used to the divergent beams projected from the second end face 21b of laser gain chip 21 being collimated into directional light
Beam, the collimated light beam are parallel with the optical axis of outside cavity gas laser 200.
Tunable optic filter 23 is used to lock the output frequency of outside cavity gas laser 200, namely to light beam (such as described directional light
Beam) transmission filter is carried out, the light of other wave-length coverages is filtered with allowing the light transmission of particular range wavelength.In this reality
It applies in example, tunable optic filter 23 is specifically configured to vernier tuning mechanism comprising spaced etalon 231, etalon
232 and etalon 233.
Reflecting mirror 24 includes third end face 24a and the 4th end face 24b, in which: the relatively close tunable filter of third end face 24a
Wave device 23, the 4th end face 24b are relatively distant from tunable optic filter 23, that is to say, that third end face 24a is located at the 4th end face 24b's
Front, third end face 24a, the 4th end face 24b respectively constitute the front end face of reflecting mirror 24, rear end face.
In the present embodiment, it is coated with part reflective portion transmission film on the 24a of third end face, can specifically be coated with 30% reflection
70% transmission film.In this way, the collimated light beam on the 24a of third end face is incident to from tunable optic filter 23, partially by third
End face 24a reflected frontward returns tunable optic filter 23, and partially from third end face, 24a is transmitted backward in reflecting mirror 24.That is, swashing
The resonance of outside cavity gas laser 200 is formed between the first end face 21a of gain of light chip 21 to the third end face 24a of reflecting mirror 24
Chamber, wherein first end face 21a, third end face 24a respectively constitute two external cavity surfaces of the resonant cavity.In this way, third end face
24a is in addition to the external cavity surface for constituting the resonant cavity, while third end face 24a also constitutes the light end out of the resonant cavity, it is only necessary to
A secondary coupling is carried out at the third end face rear 24a, coupling difficulty is small, and coupling tolerance is high, and compact-sized, simple process.
4th end face 24b is set as the curved surface for having non-constant angle with the collimated light beam.In this way, from third end face
24a transmits the collimated light beam in reflecting mirror 24, partially transmits reflecting mirror 24 backward from the 4th end face 24b to final
Form the resonant cavity goes out light, partially by the 4th end face 24b reflected frontward；However, since the 4th end face 24b is set as bent
Face, it is no longer parallel with the collimated light beam by the segment beam of the 4th end face 24b reflected frontward, regardless of whether described in returning
Resonance can not be carried out in resonant cavity, the influence so as to avoid the segment beam to external cavity mode prevents outside cavity gas laser 200
The single mode of final output is distorted, and ensure that Output optical power.
In the present embodiment, reflecting mirror 24 is set as plano-convex lens, concretely C-lens lens, and third end face 24a is
Perpendicular to the plane of the collimated light beam, the 4th end face 24b is set as the arc convex lens face protruded out backwards.In this way, can also be into one
Step guarantees light path coaxial, makes compact-sized.
Further, outside cavity gas laser 200 further includes the isolator 25 being set in 24 rear optical path of reflecting mirror, the 4th end
The light beam that face 24b is transmitted is coupled on the light output end of outside cavity gas laser 200 after passing through isolator 25, completes outside cavity gas laser
200 optical coupling out.In this way, by setting isolator 25, the light beam that can avoid in optical fiber link is incident on forward external cavity laser
External cavity mode is impacted in the resonant cavity of device 200.
Further, the 4th end face 24b of reflecting mirror 24 is provided towards isolator 25 and protrudes out, and the focus of reflecting mirror 24
It falls on the light output end of outside cavity gas laser 200.In this way, light beam transmit focus to after the 4th end face 24b of reflecting mirror 24 it is outer
On on the light output end of cavity laser 200, that completes outside cavity gas laser 200 goes out optical coupling；The third end face 24a structure of reflecting mirror 24
At the external cavity surface of the resonant cavity, while reflecting mirror 24 plays the role of the compactedness that structure is greatly promoted to light beam coupling, makes
The package dimension of outside cavity gas laser 200 miniaturises.
In the present embodiment, outside cavity gas laser 200 is coupled with fiber adapter 28, correspondingly, outside cavity gas laser 200
The light output end be formed on the fiber end face of fiber adapter 28.
In the present embodiment, outside cavity gas laser 200 further includes backlight detection chip (not shown), the backlight detection chip
Light extraction efficiency in the resonant cavity and for monitoring outside cavity gas laser 200.
Further, outside cavity gas laser 200 further includes pedestal 291 and semiconductor cooler 29.Laser gain chip 21, standard
One or more of components such as straight lens 22, the backlight detection chip are laid on pedestal 291；Pedestal 291 is set as leading
Hot material, and it is laid on semiconductor cooler 29.Semiconductor cooler 29 can be used for regulating and controlling temperature so that laser
One or more in the components such as chip gain 21, collimation lens 22, the backlight detection chip works in the temperature strip of needs
Under part.
Compared with prior art, the outside cavity gas laser 200 of the present embodiment has the advantages that by the way that reflecting mirror is arranged
24 and its specific structure, on the one hand, the reflected light of the 4th end face 24b does not carry out resonance in the resonant cavity, avoids externally
The influence of cavity mold formula prevents the single mode of 200 final output of outside cavity gas laser to be distorted, ensure that Output optical power, another party
The third end face 24a in face, reflecting mirror 24 had not only constituted the external cavity surface of the resonant cavity but also had constituted the light end out of the resonant cavity, only needed
A secondary coupling is carried out at the third end face rear 24a, coupling difficulty is small, and coupling tolerance is high, and compact-sized, simple process,
In another aspect, reflecting mirror 24 is gone back while playing the role of ensure that light path coaxial to light beam coupling, the compact of structure is greatly promoted
Property, miniaturise the package dimension of outside cavity gas laser 200；In addition, being avoided in optical fiber link by setting isolator 25
Light beam be incident on forward in resonant cavity and external cavity mode impacted.
Although not each embodiment only includes one only it should be appreciated that this specification is described according to embodiment
Vertical technical solution, this narrating mode are only that for clarity, should consider the specification as a whole, the technology of each embodiment
Scheme can be properly combined, and form the intelligible other embodiments of technical staff.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of outside cavity gas laser of tunable wave length, the outside cavity gas laser includes the laser gain chip successively arranged, standard
Straight lens, tunable optic filter and reflecting mirror, for the laser gain chip for issuing light beam, the collimation lens is used for will
The beam collimation is collimated light beam, and the reflecting mirror includes the third end face of the relatively close tunable optic filter and opposite
The 4th end face far from the tunable optic filter, it is saturating that the light beam that the laser gain chip issues successively is emitted to the collimation
Mirror, the tunable optic filter and the reflecting mirror, which is characterized in that the transmission of part reflective portion is coated on the third end face
One end face of film, the third end face and the laser gain chip constitutes two external cavity surfaces of resonant cavity, the 4th end
Face is set as the inclined surface for having angle with the collimated light beam or curved surface.
2. the outside cavity gas laser of tunable wave length according to claim 1, which is characterized in that the third end of the reflecting mirror
Face is the plane perpendicular to the collimated light beam, and the 4th end face of the reflecting mirror is set as having angle with the collimated light beam
Inclined surface.
3. the outside cavity gas laser of tunable wave length according to claim 2, which is characterized in that the angle [alpha] of the angle is full
0 ° of α≤86 ° < of foot.
4. the outside cavity gas laser of tunable wave length according to claim 2, which is characterized in that the outside cavity gas laser also wraps
The attachment lens for being set to the 4th end face side of the reflecting mirror is included, the attachment lens is configured as: from the 4th end
Face transmits the light beam of the reflecting mirror, after transmiting the attachment lens, by the attachment lens revert to it is described parallel
The transmission of light beam cocurrent and parallel.
5. the outside cavity gas laser of tunable wave length according to claim 4, which is characterized in that the attachment lens includes phase
To close to the 5th end face of the reflecting mirror and being relatively distant from the 6th end face of the reflecting mirror；6th end face is parallel to institute
Third end face is stated, the 5th end face is parallel to the 4th end face.
6. the outside cavity gas laser of tunable wave length according to claim 4, which is characterized in that the outside cavity gas laser also wraps
Isolator is included, the isolator is set between the attachment lens and the reflecting mirror, so as to transmit from the 4th end face
The light beam of the reflecting mirror is successively emitted to the isolator and the attachment lens out.
7. the outside cavity gas laser of tunable wave length according to claim 1, which is characterized in that the reflecting mirror is set as flat
Convex lens, the third end face are the plane perpendicular to the collimated light beam, and the 4th end face is set as convex lens face.
8. the outside cavity gas laser of tunable wave length according to claim 7, which is characterized in that the focus of the reflecting mirror is fallen
On the light output end of the outside cavity gas laser；The outside cavity gas laser further includes isolator, is transmitted from the 4th end face
The light beam of the reflecting mirror is emitted to the light output end of the outside cavity gas laser after the isolator.
9. the outside cavity gas laser of tunable wave length according to claim 1, which is characterized in that the laser gain chip packet
Include the second end face of the first end face for being relatively distant from the collimation lens and the relatively close collimation lens, the first end face
Constitute an external cavity surface of the resonant cavity.
10. the outside cavity gas laser of tunable wave length according to claim 9, which is characterized in that plated in the first end face
There is total reflection film, the outside cavity gas laser further includes the backlight detection chip being placed in the resonant cavity.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116224570A (en) * | 2023-04-28 | 2023-06-06 | 中国科学院长春光学精密机械与物理研究所 | Tunable filter and semiconductor laser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060215713A1 (en) * | 2005-03-28 | 2006-09-28 | Axsun Technologies, Inc. | Laser with tilted multi spatial mode resonator tuning element |
| CN101655587A (en) * | 2008-08-19 | 2010-02-24 | 日本电气株式会社 | Optical module, optical communication device using the same and reflective optical path setting method |
| US20100322269A1 (en) * | 2009-06-17 | 2010-12-23 | Cogo Optronics, Inc. | Tunable laser |
| CN203787763U (en) * | 2014-04-16 | 2014-08-20 | 苏州旭创科技有限公司 | External cavity laser device |
| CN104078836A (en) * | 2013-02-22 | 2014-10-01 | 安科公司 | Small packaged tunable laser assembly |
-
2017
- 2017-12-21 CN CN201711397018.XA patent/CN109950785B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060215713A1 (en) * | 2005-03-28 | 2006-09-28 | Axsun Technologies, Inc. | Laser with tilted multi spatial mode resonator tuning element |
| CN101655587A (en) * | 2008-08-19 | 2010-02-24 | 日本电气株式会社 | Optical module, optical communication device using the same and reflective optical path setting method |
| US20100322269A1 (en) * | 2009-06-17 | 2010-12-23 | Cogo Optronics, Inc. | Tunable laser |
| CN104078836A (en) * | 2013-02-22 | 2014-10-01 | 安科公司 | Small packaged tunable laser assembly |
| CN203787763U (en) * | 2014-04-16 | 2014-08-20 | 苏州旭创科技有限公司 | External cavity laser device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116224570A (en) * | 2023-04-28 | 2023-06-06 | 中国科学院长春光学精密机械与物理研究所 | Tunable filter and semiconductor laser |
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