CN105186285A - Electric drive mode tunable laser - Google Patents
Electric drive mode tunable laser Download PDFInfo
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- CN105186285A CN105186285A CN201510413286.0A CN201510413286A CN105186285A CN 105186285 A CN105186285 A CN 105186285A CN 201510413286 A CN201510413286 A CN 201510413286A CN 105186285 A CN105186285 A CN 105186285A
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- bragg reflection
- reflection parts
- electric drive
- laser
- tunable laser
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Abstract
The present invention relates to an electric drive mode tunable laser. The problems of difficult miniaturization and difficult mode regulation exist in the prior art. According to the electric drive mode tunable laser, a working layer and a light limiting layer are arranged between two layered Bragg reflection members, the outer sides of the two layered Bragg reflection members are provided with layered electrodes, and the conductive area of one layered electrode is formed by a discrete conductive area. The layered electrodes are connected to a drive controller, and the discrete conductive area is controlled to distribute current in time space. The working layer generates stimulated radiation, the closed curve light aperture of the light limiting layer has a selection effect to an optical field mode, and the drive controller regulates excitation electric field time space distribution to realize laser output mode dynamic regulation. The electric drive mode tunable laser has the advantages of electric driving, simple structure, simple production process, high reliability, a wide range of application, high application flexibility, easy miniaturization, easy batch-scale production, easy integration, the easy expansion of functions, the realization of vector beam output, a controllable mode, and high beam quality.
Description
Technical field
The invention belongs to optical technical field, relate to a kind of laser, a particularly electric drive mode tunable laser, is mainly used in the fields such as Photoelectric Detection, optical communication, spectral measurement, optical micro-manipulation, laser processing, optical storage, laser measurement, laser medicine, optical microphotograph, optical system as LASER Light Source.
Background technology
Laser is the device utilizing stimulated radiation principle to produce light amplification transmitting in working media, be widely used in the fields such as Photoelectric Detection, optical communication, spectral measurement, optical micro-manipulation, laser processing, optical storage, laser measurement, laser medicine, optical microphotograph, optical system, such as, in optical communication field, different zlasing mode can carry out information transmission as channel, increases information carrying capacity; In optical micro-manipulation system, there is obviously difference in different zlasing mode focus characteristics, forms optical trap.Not only there is requirement to the basic outgoing beam of laser in current application system, can carry out mode adjusting simultaneously and drive modulation in the urgent need to laser.
In first technology, there is a kind of laser, see authorizing United States Patent (USP), United States Patent (USP) name is authorized to be called solid-state laser (English name: Solid-statelaser), granted patent number: US8165182B2, the mandate time: on April 24th, 2012, patent inventor: the people such as AdolfGiesen.This laser has suitable advantage, but still there are some essence not enough: 1) this laser adopts optical pumping structure, system constructing is complicated, cannot realize automatically controlled modulation; 2) system adopts the solid state gain structure based on reflective parts, includes based on speculum compensating module simultaneously, and make system require very high to preparation technology, complex procedures, the difficulty of preparing laser are large; 3) Optical Maser System is arranged in two speculums at reflective compensating module, and all device mutual alignments and orientation arrange and require high, and cause whole system complex structure, resetting difficulty is large, and reliability reduces, and limits the light source scope of application and application flexibility; 4) this laser cannot realize miniaturization, microminiaturization in itself, based semiconductor technique cannot carry out lot-size production, be difficult to integrated; 5) axisymmetric vectoring beam exit cannot be realized in itself, be difficult to the electric drive regulation and control realizing Laser output pattern.
Summary of the invention
The object of the invention is to the deficiency for above-mentioned technology; a kind of electric drive mode tunable laser is provided, there is electric drive, simple for structure, manufacture craft is simple, reliability is high, applied range, application flexibility are strong, be easy to microminiaturized, be easy to lot-sizeization and produce, be convenient to integrated, function and be easy to expand, vector beam output, pattern controllable, beam quality high can be realized.
Basic conception of the present invention is: based on vertical cavity surface-emitting laser principle, and in binding cavity, light field is selected and electric field control technique, by being provided with working lining and limit photosphere between two stratiform Bragg reflection parts, forms stratiform laserresonator; Be respectively arranged with layered electrode at two stratiform Bragg reflection member outside, the conductive region of one of them layered electrode is made up of discrete conductive areas; Limit photosphere is provided with the closed curve clear aperature of edge complications, layered electrode is connected with driving governor, control discrete conductive areas at time and space distributed current, working lining produces stimulated radiation, the closed curve clear aperature of limit photosphere has selection index system to light field pattern, and driving governor excites electric field time and space to distribute by regulation and control and realizes Laser output pattern dynamic regulation.
The present invention includes: bottom laminate Bragg reflection parts, working lining, top laminar Bragg reflection parts; Between bottom laminate Bragg reflection parts and top laminar Bragg reflection parts, arrange limited photosphere, limit photosphere is provided with closed curve light hole; Bottom laminate Bragg reflection parts are provided with the first electrode layer away from the side of working lining, at top laminar Bragg reflection parts, the side of working lining are provided with the second electrode lay; Conductive region on an electrode layer in first electrode layer and the second electrode lay is made up of discrete conductive areas; On an electrode layer in first electrode layer and the second electrode lay, the normal direction position of the vertical plane corresponding with closed curve light hole is provided with Laser output region; The conductive region of the first electrode layer and the conductive region of the second electrode lay all mutually realize current signal with driving governor and are connected.
Described bottom laminate Bragg reflection parts and top laminar Bragg reflection parts are distributed bragg reflector mirror.
Described working lining is the one of semi conductor optical gain ducting layer, doping gain waveguide layer.
The course of work of a kind of electric drive mode of the present invention tunable laser is: arrange limited photosphere between bottom laminate Bragg reflection parts and top laminar Bragg reflection parts, forms stratiform laserresonator; Limit photosphere includes region and closed curve clear aperature; Bottom laminate Bragg reflection parts are provided with the first electrode layer away from the side of working lining, at top laminar Bragg reflection parts, the side of working lining are provided with the second electrode lay; The conductive region of the second electrode lay is made up of discrete conductive areas; The normal direction position of the vertical plane that the discrete conductive areas of the second electrode lay is corresponding with closed curve clear aperature is provided with Laser output region; The conductive region of the first electrode layer and the conductive region of the second electrode lay all mutually realize current signal with driving governor and are connected.Driving governor controls discrete conductive areas at time and space distributed current, working lining produces stimulated radiation, the closed curve clear aperature of limit photosphere has selection index system to light field pattern, and driving governor excites electric field time and space to distribute by regulation and control and realizes Laser output pattern dynamic regulation.
Sandwich preparation of the present invention, Bragg reflection effect, electrical connection, driving electric field controls technology are mature technology.Inventive point of the present invention is: select and electric field control technique based on light field in vertical cavity surface-emitting laser principle, chamber, construction stratiform framework laserresonator; Limit photosphere has selection index system to light field pattern; excite electric field time and space to distribute by regulation and control to realize Laser output pattern dynamic regulation and output, provide a kind of electric drive, simple for structure, manufacture craft is simple, reliability is high, applied range, application flexibility are strong, be easy to microminiaturized, be easy to lot-sizeization and produce, be convenient to integrated, function and be easy to expand, vector beam output, electric drive mode tunable laser that pattern controllable, beam quality are high can be realized.
Compared with prior art, advantage of the present invention:
1) adopt optical pumping structure at first technology laser, system constructing is complicated, cannot realize automatically controlled modulation.The present invention is based on vertical cavity surface-emitting laser principle, in binding cavity, light field is selected and electric field control technique, by being provided with working lining and limit photosphere between two stratiform Bragg reflection parts, form stratiform laserresonator, therefore there is electric drive, system constructing simple knot, the feature such as simple for structure;
2) adopt the solid state gain structure based on reflective parts at first technological system, include based on speculum compensating module simultaneously, make system require very high to preparation technology, complex procedures, the difficulty of preparing laser are large.The present invention does not adopt grating micro-nano structure in essence, but adopt the Bragg reflection structure of multilayer, based on the dissemination of light field in the waveguide system of Bragg reflection structure construction, layered electrode is respectively arranged with at two stratiform Bragg reflection member outside, preparation, based on existing vertical cavity surface-emitting laser technique, has the simple feature of manufacture craft;
3) be arranged in two speculums in first technology at reflective compensating module, all device mutual alignments and orientation arrange and require high, and cause whole system complex structure, resetting difficulty is large, and reliability reduces, and limits the light source scope of application and application flexibility.Laser light field of the present invention is from the surperficial outgoing of top laminar Bragg reflection parts, and manufacture craft and system configuration are succinctly ripe, and stratiform laser system Stability Analysis of Structures and anti-interference, has that reliability is high, a feature such as applied range, flexibility are strong;
4) miniaturization, microminiaturization cannot be realized on first technological essence, based semiconductor technique cannot carry out lot-size production, be difficult to integrated.The present invention prepares based semiconductor technique, is easy to microminiaturized, is easy to lot-sizeization and produces, be convenient to integrated, function and be easy to expand;
5) axisymmetric vectoring beam exit cannot be realized on first technological essence, be difficult to the electric drive regulation and control realizing Laser output pattern.In the present invention, the conductive region of a layered electrode is made up of discrete conductive areas; Limit photosphere is provided with the closed curve clear aperature of edge complications, layered electrode is connected with driving governor, control discrete conductive areas at time and space distributed current, working lining produces stimulated radiation, the closed curve clear aperature of limit photosphere has selection index system to light field pattern, driving governor excites electric field time and space to distribute by regulation and control and realizes Laser output pattern dynamic regulation, and the present invention has can realize vector beam output, pattern controllable, beam quality high.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is a kind of structural representation in the first electrodes conduct region of the present invention.
Fig. 3 is a kind of structural representation of limit photosphere of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of electric drive mode tunable laser, select and electric field control technique based on light field in vertical cavity surface-emitting laser principle, chamber, construction stratiform framework laserresonator, the conductive region of a layered electrode is made up of discrete conductive areas; Limit photosphere is provided with the closed curve clear aperature of edge complications, layered electrode is connected with driving governor, control discrete conductive areas at time and space distributed current, working lining produces stimulated radiation, the closed curve clear aperature of limit photosphere has selection index system to light field pattern, driving governor excites electric field time and space to distribute by regulation and control, realizes Laser output pattern dynamic regulation.
A kind of electric drive mode tunable laser of the present invention, comprising: bottom laminate Bragg reflection parts 3, working lining 2, top laminar Bragg reflection parts 1; Between bottom laminate Bragg reflection parts 3 and top laminar Bragg reflection parts 1, arrange limited photosphere 6, limit photosphere 6 is provided with closed curve light hole 601; Bottom laminate Bragg reflection parts 3 are provided with the first electrode layer 5 away from the side of working lining 2, at top laminar Bragg reflection parts 1, the side of working lining 2 are provided with the second electrode lay 4; Conductive region on an electrode layer in first electrode layer 5 and the second electrode lay 4 is made up of discrete conductive areas 401; On an electrode layer in first electrode layer 5 and the second electrode lay 4, the normal direction position of the vertical plane corresponding with closed curve light hole 601 is provided with Laser output region; The conductive region of the first electrode layer 5 all mutually realizes current signal with driving governor 8 with the conductive region of the second electrode lay 4 and is connected.
In the present embodiment, bottom laminate Bragg reflection parts 3 and top laminar Bragg reflection parts 1 are distributed bragg reflector mirror; Working lining 2 is semi conductor optical gain ducting layer; Limit photosphere 6 is arranged between working lining 2 and top laminar Bragg reflection parts 1, and limit photosphere 6 is provided with closed curve light hole 601, and closed curve clear aperature 601 is peripheral is pentalpha, as shown in Figure 3; The conductive region of the second electrode lay 4 is made up of discrete conductive areas 401, adopts five circular conductive districts to form, as shown in Figure 2 in the present embodiment.
The present embodiment course of work is: arrange limited photosphere 6 between bottom laminate Bragg reflection parts 3 and top laminar Bragg reflection parts 1, forms stratiform laserresonator; Limit photosphere 6 is provided with closed curve light hole 601; Bottom laminate Bragg reflection parts 3 are provided with the first electrode layer 5 away from the side of working lining 2, at top laminar Bragg reflection parts 1, the side of working lining 2 are provided with the second electrode lay 4; The conductive region of the second electrode lay 4 is made up of discrete conductive areas 401; The normal direction position of the vertical plane that the discrete conductive areas 401 of the second electrode lay 4 is corresponding with closed curve clear aperature 601 is provided with Laser output region; The conductive region of the first electrode layer 5 all mutually realizes current signal with driving governor 8 with the conductive region of the second electrode lay 4 and is connected.Driving governor 8 controls discrete conductive areas 401 at time and space distributed current, working lining 2 produces stimulated radiation, closed curve clear aperature 601 pairs of light field patterns of limit photosphere 6 have selection index system, and driving governor 8 excites electric field time and space to distribute by regulation and control and realizes Laser output pattern dynamic regulation.
The present embodiment successfully achieves the laser light field higher order mode between 845 nanometers to 955 nanometers, and not only horizontal light field realizes dynamic regulation, and also achieves regulation and control in polarization state, and part higher order mode achieves axisymmetric vectoring beam exit.The present invention has electric drive, simple for structure, manufacture craft is simple, reliability is high, applied range, application flexibility are strong, it is microminiaturized to be easy to, be easy to lot-sizeization produces, is convenient to integrated, function and is easy to expand, can realize vector beam output, pattern controllable, beam quality high.
Above-described embodiment has been described in detail technical scheme of the present invention and beneficial effect; be understood that and the foregoing is only most preferred embodiment of the present invention; be not limited to the present invention; all make in spirit of the present invention any amendment, supplement and equivalent to replace, all should be included within protection scope of the present invention.
Claims (3)
1. an electric drive mode tunable laser, is characterized in that comprising: bottom laminate Bragg reflection parts, working lining, top laminar Bragg reflection parts; Between bottom laminate Bragg reflection parts and top laminar Bragg reflection parts, arrange limited photosphere, limit photosphere is provided with closed curve light hole; Bottom laminate Bragg reflection parts are provided with the first electrode layer away from the side of working lining, at top laminar Bragg reflection parts, the side of working lining are provided with the second electrode lay; Conductive region on an electrode layer in first electrode layer and the second electrode lay is made up of discrete conductive areas; On an electrode layer in first electrode layer and the second electrode lay, the normal direction position of the vertical plane corresponding with closed curve light hole is provided with Laser output region; The conductive region of the first electrode layer and the conductive region of the second electrode lay all mutually realize current signal with driving governor and are connected.
2. a kind of electric drive mode tunable laser as claimed in claim 1, is characterized in that: described bottom laminate Bragg reflection parts and top laminar Bragg reflection parts are distributed bragg reflector mirror.
3. a kind of electric drive mode tunable laser as claimed in claim 1, is characterized in that: described working lining is the one of semi conductor optical gain ducting layer, doping gain waveguide layer.
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| CN201510413286.0A CN105186285A (en) | 2015-07-14 | 2015-07-14 | Electric drive mode tunable laser |
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| CN201510413286.0A CN105186285A (en) | 2015-07-14 | 2015-07-14 | Electric drive mode tunable laser |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040233962A1 (en) * | 2001-08-24 | 2004-11-25 | Reid Douglas Charles John | Surface emitting laser |
| CN101213712A (en) * | 2005-06-28 | 2008-07-02 | 波科海姆技术公共有限公司 | High power semiconductor laser diode |
| US20080205462A1 (en) * | 2007-02-28 | 2008-08-28 | Canon Kabushiki Kaisha | Surface emitting laser array, production process thereof, and image forming apparatus having surface emitting laser array |
| CN103414105A (en) * | 2013-07-13 | 2013-11-27 | 北京工业大学 | Perpendicular cavity surface emitting laser device stable in single transverse mode polarization |
-
2015
- 2015-07-14 CN CN201510413286.0A patent/CN105186285A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040233962A1 (en) * | 2001-08-24 | 2004-11-25 | Reid Douglas Charles John | Surface emitting laser |
| CN101213712A (en) * | 2005-06-28 | 2008-07-02 | 波科海姆技术公共有限公司 | High power semiconductor laser diode |
| US20080205462A1 (en) * | 2007-02-28 | 2008-08-28 | Canon Kabushiki Kaisha | Surface emitting laser array, production process thereof, and image forming apparatus having surface emitting laser array |
| CN103414105A (en) * | 2013-07-13 | 2013-11-27 | 北京工业大学 | Perpendicular cavity surface emitting laser device stable in single transverse mode polarization |
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Application publication date: 20151223 |