CN206697747U - A kind of tunable laser outgoing mirror - Google Patents
A kind of tunable laser outgoing mirror Download PDFInfo
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- CN206697747U CN206697747U CN201720411514.5U CN201720411514U CN206697747U CN 206697747 U CN206697747 U CN 206697747U CN 201720411514 U CN201720411514 U CN 201720411514U CN 206697747 U CN206697747 U CN 206697747U
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- Prior art keywords
- outgoing mirror
- transmitance
- tunable laser
- mirror
- laser
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Abstract
It the utility model is related to a kind of tunable laser outgoing mirror.The outgoing mirror is the variable outgoing mirror of transmitance for having different transmitance regions, and different transmitance number of regions n >=2, the outgoing mirror is level crossing.The outgoing mirror is rotated to the different transmitance regions, realizes the adjustment of outgoing mirror transmitance.Realize that laser device laser tunable wave length exports by adjusting outgoing mirror transmitance.The utility model exports without laser device laser tunable wave length can be achieved with other wavelength modulated optical elements, has the characteristics that tuned speed is fast, stability is high.
Description
Technical field
A kind of tunable laser outgoing mirror is the utility model is related to, belongs to laser technology field.
Background technology
Wavelength tunable laser is optical communication network and the Primary Component of system.Tunable laser can realize communication
Device miniaturization, multi-functional, integrated, low-power consumption, and have extended network flexibility, control flow, reduce standby laser number
Measure, reduce the advantages that cost.Accurate optical wavelength standard is being provided, is making full use of whole fiber bandwidths, raising network capacity and effect
Rate, raising system functionality etc. have significant application value.
Wavelength tunable laser is broadly divided into two major classes at present：The first kind is by adding the vertical film of choosing in laser cavity
Optical element, by realizing the output of different longitudinal mode lasers to the modulation of optical element.More commonly used optical element, which has, to spread out
Penetrate the machinery adjustment formula such as grating, Volume Bragg grating, etalon, prism, and electro-optical device, magnetic-optic devices, acousto-optical device etc.
Physics mode.Such wavelength-tuned laser can increase device cost, simultaneously since it is desired that additionally add optics modeling element
The optical element of insertion inevitably introduces insertion loss, reduces lasing efficiency.Second class Wavelength tunable laser is
Change the Boltzmann energy of gain medium active ions by changing laser external environment, such as temperature, pressure etc.
Level distribution, which lives, changes the emission characteristics of grating, so as to realize the change of Output of laser wavelength.Such laser is to external environment
Dependence is bigger, and control difficulty is big, the relatively high and stable property of cost also has much room for improvement.
The content of the invention
For the deficiency and technological deficiency of prior art Wavelength tunable laser, the utility model provides one kind and is used for
The variable outgoing mirror of transmitance of Wavelength tunable laser；Tunable wave length output is realized based on outgoing mirror transmitance regulation
Laser.Realize that the tunable output of optical maser wavelength has tuned speed is fast, stability is high etc. using the variable outgoing mirror of the transmitance
Feature.
Term explanation：
Transmitance, it is T to write a Chinese character in simplified form generic representation.
The difference of transmitance, it is Δ T to write a Chinese character in simplified form generic representation.
Transmitance excursion, refer on an outgoing mirror, the transmitance and maximum transmission in minimum transmitance region
The number range of the transmitance in region, such as minimum transmitance are 1%, and there be some differences maximum transmission 50%, centre
Transmitance region, then the transmitance excursion of Zone Full is 1%-50% on the outgoing mirror.The transmitance excursion
Namely tunable range.
The technical solution of the utility model is as follows：
A kind of tunable laser outgoing mirror, the outgoing mirror are the variable output of transmitance for having different transmitance regions
Mirror, described outgoing mirror difference transmitance number of regions n >=2, the outgoing mirror is level crossing.The outgoing mirror transmitance is output
Transmitance of the mirror to laser Output of laser wavelength.Realize that laser device laser tunable wave length is defeated by adjusting outgoing mirror transmitance
Go out.
Preferable according to the utility model, the outgoing mirror is bonded by the eyeglass of different transmitances, Huo Zhe
Minute surface is provided with the plated film of different transmitances.
Outgoing mirror difference transmitance number of regions n=3-10 preferable according to the utility model, described.
Preferable according to the utility model, the outgoing mirror is circle.A diameter of 60~the 90mm of Ф of outgoing mirror.
Preferable according to the utility model, described outgoing mirror difference transmitance region is angularly divided around outgoing mirror center
Cloth is on outgoing mirror minute surface.The different transmitance regions now formed are sector regions.Further preferably, the outgoing mirror is different
The difference of the transmitance of two adjacent areas in transmitance region is Δ T=0.5%-10%, particularly preferably Δ T=3% or 5%.
Preferable according to the utility model, the transmitance excursion in the outgoing mirror difference transmitance region is 1%-
50%；More preferably 1%-20%.
Preferable according to the utility model, the outgoing mirror is fixedly connected with a rotating device.Described in the rotating device drives
Outgoing mirror is rotated to the different transmitance regions, realizes the adjustment of outgoing mirror transmitance.
It is preferable according to the utility model, described rotating device for can 360 ° of rotations circulators, rotation steps angle
For 360 °/n, wherein n is outgoing mirror difference transmitance number of regions.The distribution angle in described outgoing mirror difference transmitance region
It is adapted with the rotation steps angle of circulator.One preferable scheme is that the circulator is optics motor.
Preferable according to the utility model, the outgoing mirror is provided with 2-4 connecting hole by paracentral position, so that output
Mirror is fixed on rotating device.The outgoing mirror differed with the area of rotating device contact area with the area of outgoing mirror it is more big more
It is good, reduce the region that outgoing mirror is blocked as far as possible.A kind of preferable scheme is a diameter of 60~90mm of Ф of outgoing mirror, institute
State a diameter of 20~40mm of outgoing mirror and drive device contact area.
It is preferable according to the utility model, the pumping source of the tunable laser is semiconductor laser diode (LD),
All solid state laser (SSL) or optical fiber laser (FL).The pumping source wavelength is preferably the absworption peak wavelength of gain media.
The utility model is used as the outgoing mirror of tunable laser, realizes the laser output of tunable wave length.Different saturating
To cross under rate, the laser power density in tunable laser laser cavity is different, in the case of low transmission, intracavity power density
Greatly, it is serious to reabsorb effect, then the laser launched is converted into long wavelength after being absorbed by the gain media in tunable laser and swashed
Light output；Opposite, when rotating device drives outgoing mirror to rotate to big transmitance, reabsorbing effect decrease causes optical maser wavelength
Occur " blue shift ", so as to realize that short wavelength laser exports.During practical application, different transmitances is arranged as required to, can be achieved
The tunable output of wavelength.
Compared with prior art, the beneficial effects of the utility model are：
1. the variable outgoing mirror of transmitance of the present utility model is used for tunable laser, adjusted without additionally inserting other wavelength
Optical element is saved, laser transformation efficiency is high and saves the cost of additional optical element.Only need to rotate by rotating device and export
Mirror can obtain different optical maser wavelength output, and tuned speed is fast, and a kind of new product is provided for laser outgoing mirror field.
2. the variable outgoing mirror of transmitance of the present utility model is used for tunable laser, wavelength tuning range can cover entirely
Gain spectrum width, operation is extremely convenient, and the personal professional experiences without relying on operating personnel can be realized, may apply to light and lead to
The various fields such as news, photochemistry, isotopic separation, telediagnosis, photobiology and spectroscopy.
Brief description of the drawings
Fig. 1 is the schematic top plan view of different transmitance outgoing mirrors in embodiment 1, in figure, T=5%, T=10% and T=
20% represents three kinds of different transmitances, and each region is sector；1st, fan-shaped eyeglass (fan section), 2, connecting hole.
Fig. 2 is the lateral view of different transmitance outgoing mirrors in embodiment 1.
Fig. 3 is the schematic diagram of different transmitance outgoing mirrors in embodiment 2, the sector mirror that it is 45 ° by 8 angles that outgoing mirror, which is,
Piece forms.
Fig. 4 is the structural representation of the tunable laser of application examples 1.Wherein：3- pumping sources, 4- optical coupling systems,
5- inputs mirror, 6- laser mediums, 7- outgoing mirrors, 8- circulators.
Fig. 5 is the output wavelength figure of the tunable laser of application examples 1, rotates outgoing mirror to three kinds of different transmitance T=
5%th, T=10%, T=20% region, the tuning operation of tri- kinds of wavelength of 2100.7nm, 2110nm and 2124.5nm is realized.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples, but not limited to this.
Embodiment 1：
A kind of tunable laser outgoing mirror, the outgoing mirror are that the transmitance with 3 different transmitance regions is variable
Outgoing mirror, described outgoing mirror difference transmitance region is angularly distributed on outgoing mirror minute surface around outgoing mirror center, by three
The eyeglass of block difference transmitance is bonded by optical cement, and every piece of transmitance eyeglass is the fan-shaped eyeglass 1 of 120 ° of angle.It is described defeated
Appearance transmitance is transmitance of the outgoing mirror to laser Output of laser wavelength.Laser is realized by adjusting outgoing mirror transmitance
Output that optical maser wavelength is tunable.The outgoing mirror is circular flat mirror.
The outgoing mirror transmitance distribution map is as shown in figure 1, the area equation in three kinds of different transmitance regions, transmitance point
Not Wei 5%, 10%, 20%, three kinds of transmitance regions uniformly occupy whole outgoing mirror, the size of whole outgoing mirror for Ф 80mm ×
3mm。
On the outgoing mirror, 3 Ф 4mm fabrication hole i.e. connecting hole 2 is evenly distributed with around outgoing mirror center, is used for
Outgoing mirror is fixed on circulator.The outgoing mirror is fixedly connected with a circulator 8, and the circulator 8 drives the outgoing mirror 7 to revolve
The different transmitance regions are gone to, realize the adjustment of outgoing mirror transmitance.The described circulator being connected with outgoing mirror is light
Motor is learned, the rotation steps that angle is 120 ° can be achieved, to drive outgoing mirror to rotate to different transmitance regions.Circulator
Block a diameter of 36mm of outgoing mirror part (as shown in broken circle in Fig. 1).
Embodiment 2：
As described in Example 1, except that：The outgoing mirror be by 8 angles be 45 ° fan-shaped eyeglass bonding and
Into transmitance is respectively 2%, 5%, 8%, 11%, 14%, 17%, 20%, 23%, and adjacent two fan-shaped eyeglass is to optical maser wavelength
Transmitance difference Δ T be 3%, overall output mirror transmitance scope is T=2%-23%.As shown in Figure 3.
Application examples 1：The variable outgoing mirror of transmitance is used for three wavelength tunable solid lasers
The variable outgoing mirror of the transmitance of embodiment 1 is used for three wavelength tunable solid lasers.The solid state laser
Structure is as shown in figure 4, including pumping source 3, optical coupling system 4, input mirror 5, gain media 6, the variable outgoing mirror 7 of transmitance with
And circulator 8.Wherein, pumping source 3 is the Tm optical fiber lasers that output wavelength is 1.91 μm, and optical coupling system 4 is to 1.91 μ
The lens group of m pumpings light transmission rate >=99.5%, its thang-kng end face are plated with the increasing to pump light and output light transmission rate >=99%
Permeable membrane；Input 7 liang of minute surfaces of mirror are plated with deielectric-coating to pumping light transmission rate >=99%, while it is close to gain medium 6
One end be plated with to export light reflectivity >=99.5% deielectric-coating；Described gain media 6 is the Ho of 1at.% doping:LuAG
Ceramics, thang-kng end face plating anti-reflection film film wave band is 1850-2250nm.Described input mirror 5 is level crossing, the plating of two-sided anti-reflection film
Film wave band is 1550-1950nm, and the wavelength band of high-reflecting film is 1950-2250nm.The variable outgoing mirror 7 of transmitance is rotating
Corresponding three kinds of output wavelengths are respectively 2100.7nm, 2110nm, 2124.5nm during to different transmitance regions, as shown in Figure 5.
It is achieved in the output of three tunable wave length laser.
Claims (9)
1. a kind of tunable laser outgoing mirror, it is characterised in that the outgoing mirror is the transmitance for having different transmitance regions
Variable outgoing mirror, described outgoing mirror difference transmitance number of regions n >=2, the outgoing mirror is level crossing.
2. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that described outgoing mirror difference transmitance area
Domain number n=3-10.
3. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that the outgoing mirror is circle.
4. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that described outgoing mirror difference transmitance area
Domain is angularly distributed on outgoing mirror minute surface around outgoing mirror center.
5. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that the outgoing mirror difference transmitance region
The differences of transmitance of two adjacent areas be Δ T=0.5%-10%.
6. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that the outgoing mirror is by different transmissions
The eyeglass of rate is bonded or has the plated film of different transmitances on minute surface.
7. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that a diameter of Ф 60 of outgoing mirror~
90mm。
8. tunable laser outgoing mirror as claimed in claim 1, it is characterised in that the outgoing mirror is fixedly connected with a rotation
Device；The outgoing mirror is provided with 2-4 connecting hole by paracentral position.
9. tunable laser outgoing mirror as claimed in claim 8, it is characterised in that described rotating device is can 360 ° of rotations
The circulator turned, rotation steps angle is 360 °/n, and wherein n is outgoing mirror difference transmitance number of regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720411514.5U CN206697747U (en) | 2017-04-19 | 2017-04-19 | A kind of tunable laser outgoing mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720411514.5U CN206697747U (en) | 2017-04-19 | 2017-04-19 | A kind of tunable laser outgoing mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206697747U true CN206697747U (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720411514.5U Expired - Fee Related CN206697747U (en) | 2017-04-19 | 2017-04-19 | A kind of tunable laser outgoing mirror |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115290599A (en) * | 2022-10-08 | 2022-11-04 | 青岛镭测创芯科技有限公司 | Laser radar system for measuring concentration of greenhouse gas |
-
2017
- 2017-04-19 CN CN201720411514.5U patent/CN206697747U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115290599A (en) * | 2022-10-08 | 2022-11-04 | 青岛镭测创芯科技有限公司 | Laser radar system for measuring concentration of greenhouse gas |
| CN115290599B (en) * | 2022-10-08 | 2023-01-24 | 青岛镭测创芯科技有限公司 | Laser radar system for measuring concentration of greenhouse gas |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20190419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |