CN102096185A - Miniature standard tool and fine tuning method of transmission wavelength thereof - Google Patents
Miniature standard tool and fine tuning method of transmission wavelength thereof Download PDFInfo
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- CN102096185A CN102096185A CN2010106089561A CN201010608956A CN102096185A CN 102096185 A CN102096185 A CN 102096185A CN 2010106089561 A CN2010106089561 A CN 2010106089561A CN 201010608956 A CN201010608956 A CN 201010608956A CN 102096185 A CN102096185 A CN 102096185A
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- wedge
- etalon
- miniature
- peak wavelength
- angle
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Abstract
The invention discloses a miniature standard tool and a fine tuning method of transmission wavelength thereof. In the method, a pair of optical wedges or a fixed optical wedge set is adopted for finely tuning the transmission wavelengths of a collimator and the standard tool, thereby the problem of difficulty in precision control on the central wavelengths of the collimator and the standard tool in a fixing process is solved. With the structure that the transmission wavelength is changed by finely tuning an incident angle, the miniature standard tool is easy to realize and can be produced in batch.
Description
Technical field
The present invention relates to the optical-fibre communications field of optics, particularly relate to a kind of miniature etalon and transmission peak wavelength method for trimming thereof.
Background technology
In the optical-fibre communications passive device is made, usually use miniature etalon.Owing to often pursue microminiaturization in the commercialization process, so collimating apparatus and etalon often adopt welding or gummed to fix, but welding process deformation or gummed glue fixation procedure usually produce deformation.
Common miniature etalon as shown in Figure 1, 2,101 is optical fiber collimator, 102A is the standard air tool, 102B is solid etalon, when beam incident angle was θ, fixing back incident angle can produce Δ θ usually and change, and the etalon transmission peak wavelength is produced depart from.People adopt hermetically-sealed construction that fixing back air-gap etalon is filled different air pressure change refractive indexes usually and proofread and correct transmission peak wavelength, yet this scheme needs system that fabulous sealing effectiveness is arranged, and this has just proposed very high requirement to structural design and technology.
Summary of the invention
The problem that departs from the miniature etalon transmission peak wavelength of tradition adopts inflatable structure to be difficult to realize the problem that seals, and the present invention proposes a kind of miniature etalon and transmission peak wavelength method for trimming thereof.
For achieving the above object, technical scheme provided by the invention is: a kind of miniature etalon, comprise optical fiber collimator and etalon, and it is characterized in that, between optical fiber collimator and etalon, also be inserted with an a pair of wedge or a fixing wedge group.
Further, the angle of wedge of described a pair of wedge is identical.
Further, described wedge group is a plurality of identical or different angles of wedge wedge is formed.。
Further, above-mentioned miniature etalon transmission peak wavelength method for trimming is finely tuned the correction that the angle that incides miniature etalon realizes the etalon transmission peak wavelength by wedge, and wherein the angle of wedge is to proofreading and correct incident angle by mutual rotation; Fixedly the wedge of angle of wedge group reaches the purpose of correction by mutual selection and cooperation.
The present invention adopts two wedges of the one group of wedge of fixedly carving the angle or the identical angle of wedge to fixing back collimating apparatus and the fine setting of etalon transmitted light wave progress row, to solve the problem that collimating apparatus and etalon fixation procedure centre wavelength are difficult to accurate control, the present invention is easy to realize and produce in batches by the structure of fine setting incident angle change transmission peak wavelength.
Description of drawings
Fig. 1 is the little angle incident of a miniature etalon incident light synoptic diagram one; Fig. 2 is the little angle incident of a miniature etalon incident light synoptic diagram two; Fig. 3 is for adopting the miniature etalon of wedge to the angle of finely tuning incident light; Fig. 4 makes up the miniature etalon of finely tuning incident angle for fixing different wedges.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further explanation.
The relation of etalon transmission peak wavelength λ and incident angle θ is: 2ndcos θ=m λ, and in the above-mentioned formula, n is the etalon refractive index, and d is an etalon thickness, and m is an order of interference.
Suppose that incident angle from 0 to 1 degree changes, etalon thickness 20um, refractive index is 1nm, and order of interference is 26 times, and transmission peak wavelength is as shown in the table with the variation of angle.Therefore to obtain transmission peak wavelength accurately, need the angle of accurate control incident.
Miniature etalon transmission peak wavelength fine setting can be adopted following method.
Embodiment one as shown in Figure 3, a kind of miniature etalon, it adopts and insert the angles of wedge in the middle of optical fiber collimator 201 and etalon 202 is two identical wedge 203A, the 203B of Δ α.When carrying out the fine setting of etalon transmission peak wavelength, two wedges rotate relatively, promptly a wedge counterclockwise rotates the φ angle, during another wedge clockwise direction rotation φ angle, total angle of deviation that two wedges produce becomes with corner φ, be that light is converted to anglec of rotation φ relatively large between two wedges through the small angle of deviation δ that two wedges are produced, realized the fine setting of minute angle, promptly
In the formula, n
1Be the wedge refractive index.
Embodiment two as shown in Figure 4, a kind of miniature etalon inserts a series of angles of wedge and is respectively Δ α, Δ β, Δ φ in the middle of optical fiber collimator 301 and etalon 302 ... wedge.When carrying out etalon transmission peak wavelength when fine setting, light vertical incidence or during near vertical incidence, the angle of deviation that is produced are only by the angle of wedge and the refractive index n of wedge
1Determine δ 1=(n
1-1) Δ α, δ 1=(n
1-1) Δ β, δ 1=(n
1-1) Δ φ ..., needed angle of deviation δ can be these fixedly combinations of the wedge of the angle of wedge, δ=a δ 1+b δ 2+c δ 3+... (a, b, c is the wedge number of the corresponding angle of wedge), therefore can in optical fiber collimator 301 and etalon 302, insert a series of wedge, form wedge group 303, realize fine setting transmission peak wavelength.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present invention that do not break away from appended claims and limited; can make various variations to the present invention in the form and details, be the scope of protection of the invention.
Claims (8)
1. a miniature etalon comprises optical fiber collimator and etalon, it is characterized in that, between optical fiber collimator and etalon, also be inserted with a wedge to or a fixing wedge group.
2. a kind of miniature etalon according to claim 1 is characterized in that the angle of wedge of two wedges that described wedge is right is identical.
3. a kind of miniature etalon according to claim 1 is characterized in that described wedge group is the wedge of a plurality of identical or different angles of wedge.
4. a miniature etalon transmission peak wavelength method for trimming is characterized in that: finely tune the correction that the angle that incides miniature etalon realizes the etalon transmission peak wavelength by wedge.
5. a kind of miniature etalon transmission peak wavelength method for trimming according to claim 4 is characterized in that described wedge is that the wedge of two identical angles of wedge is right.
6. a kind of miniature etalon transmission peak wavelength method for trimming according to claim 2 is characterized in that described wedge is the wedge of a plurality of fixedly angles of wedge.
7. a kind of miniature etalon transmission peak wavelength method for trimming according to claim 3 is characterized in that described pair of wedge finely tune incident angle by mutual rotation.
8. a kind of miniature etalon transmission peak wavelength method for trimming according to claim 4 is characterized in that the wedge of the described fixedly angle of wedge is finely tuned incident angle by selecting mutually and cooperating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106089561A CN102096185A (en) | 2010-12-28 | 2010-12-28 | Miniature standard tool and fine tuning method of transmission wavelength thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106089561A CN102096185A (en) | 2010-12-28 | 2010-12-28 | Miniature standard tool and fine tuning method of transmission wavelength thereof |
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| Publication Number | Publication Date |
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| CN102096185A true CN102096185A (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106089561A Pending CN102096185A (en) | 2010-12-28 | 2010-12-28 | Miniature standard tool and fine tuning method of transmission wavelength thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940298A (en) * | 2019-12-17 | 2020-03-31 | 重庆理工大学 | Autocollimator |
| CN111230310A (en) * | 2018-11-29 | 2020-06-05 | 福州高意光学有限公司 | Method for manufacturing PZT driving micro-gap etalon |
| CN111258076A (en) * | 2018-11-30 | 2020-06-09 | 福州高意光学有限公司 | Optical system capable of realizing laser beam homogenization function |
Citations (6)
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| CN2465196Y (en) * | 2001-02-21 | 2001-12-12 | 华中科技大学 | Optical path corrected wave division multiplexer/demultiplexer unit |
| US20030210727A1 (en) * | 2002-05-07 | 2003-11-13 | Engana Pty Ltd. | Narrowband filter method and apparatus |
| CN201047754Y (en) * | 2007-06-11 | 2008-04-16 | 福州高意通讯有限公司 | Etalon capable of scanning |
| CN101499615A (en) * | 2009-02-24 | 2009-08-05 | 福州高意通讯有限公司 | High power semiconductor pump laser and amplifier |
| WO2010070272A1 (en) * | 2008-12-18 | 2010-06-24 | Renishaw Plc | Frequency tuneable laser device |
| CN101896849A (en) * | 2007-12-20 | 2010-11-24 | 瑞尼斯豪公司 | External cavity tunable laser with an air gap etalon comprising wedges |
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2010
- 2010-12-28 CN CN2010106089561A patent/CN102096185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465196Y (en) * | 2001-02-21 | 2001-12-12 | 华中科技大学 | Optical path corrected wave division multiplexer/demultiplexer unit |
| US20030210727A1 (en) * | 2002-05-07 | 2003-11-13 | Engana Pty Ltd. | Narrowband filter method and apparatus |
| CN201047754Y (en) * | 2007-06-11 | 2008-04-16 | 福州高意通讯有限公司 | Etalon capable of scanning |
| CN101896849A (en) * | 2007-12-20 | 2010-11-24 | 瑞尼斯豪公司 | External cavity tunable laser with an air gap etalon comprising wedges |
| WO2010070272A1 (en) * | 2008-12-18 | 2010-06-24 | Renishaw Plc | Frequency tuneable laser device |
| CN101499615A (en) * | 2009-02-24 | 2009-08-05 | 福州高意通讯有限公司 | High power semiconductor pump laser and amplifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230310A (en) * | 2018-11-29 | 2020-06-05 | 福州高意光学有限公司 | Method for manufacturing PZT driving micro-gap etalon |
| CN111258076A (en) * | 2018-11-30 | 2020-06-09 | 福州高意光学有限公司 | Optical system capable of realizing laser beam homogenization function |
| CN110940298A (en) * | 2019-12-17 | 2020-03-31 | 重庆理工大学 | Autocollimator |
| CN110940298B (en) * | 2019-12-17 | 2021-07-27 | 重庆理工大学 | Autocollimator |
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Application publication date: 20110615 |