CN104749713A - TOSA optical structure - Google Patents
TOSA optical structure Download PDFInfo
- Publication number
- CN104749713A CN104749713A CN201310725377.9A CN201310725377A CN104749713A CN 104749713 A CN104749713 A CN 104749713A CN 201310725377 A CN201310725377 A CN 201310725377A CN 104749713 A CN104749713 A CN 104749713A
- Authority
- CN
- China
- Prior art keywords
- optical
- lens group
- multimode
- tosa
- coupled lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a TOSA optical structure which is characterized in that the structure comprises a laser group, a first coupling lens group, a multimode optical fiber array, a second coupling lens group, a scanning lens, an optical grating and a collimator, which are sequentially arranged along an optical path; the laser group, the first coupling lens group, the multimode optical fiber array and the second coupling lens group sequentially arranged along the optical path are composed of N groups of a laser, a first coupling lens, a multimode optical fiber and a second coupling lens which are sequentially connected along the optical path, wherein N is greater than or equal to 2; and the optical grating is arranged at the rear focus of the scanning lens. The TOSA optical structure of the invention has the beneficial effect that the contradiction between the large size of the lasers and the insufficient dispersion angle is solved by replacing the position of the lasers in the optical path with a smaller multimode optical fiber array, and the overall size of the TOSA optical structure is greatly reduced.
Description
Technical field
The present invention relates to optical communication field, particularly a kind of TOSA optical texture.
Background technology
In optical communication field, the major function of light delivery module converts electrical signals to light signal, and light signal is converted to a kind of module of electric signal again.Be wherein light emission secondary module (TOSA) for converting electrical signals to the module of light signal, this light emission secondary module can convert electrical signals to light signal, and optical signal transmission is gone out.In prior art, TOSA optical texture ubiquity the comparatively large and dispersion angle of size not enough between contradiction.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of by substituting larger laser instrument position in the optical path with less optical fiber head array, solve because of laser dimensions is comparatively large and dispersion angle not enough between contradiction, the TOSA optical texture of the overall dimensions of reduction of device greatly.
For achieving the above object, technical scheme proposed by the invention is: a kind of TOSA optical texture, is characterized in that: comprise the laser array, the first coupled lens group, multimode fiber array, the second coupled lens group, scanning lens, grating, the collimating apparatus that are arranged in order along light path; The laser instrument that described laser array, the first coupled lens group, multimode fiber array, the second coupled lens group be arranged in order along light path is connected along light path successively successively by N group, the first coupled lens, multimode optical fiber, the second coupled lens form, described N >=2, described grating is located at the back focus place of scanning lens.
Preferably, the multimode optical fiber in described multimode fiber array is along one-dimensional square to arrangement.
Adopt technique scheme, TOSA optical texture of the present invention, the beneficial effect had is: by substituting larger laser instrument position in the optical path with less multimode fiber array, solve because of laser dimensions is comparatively large and dispersion angle not enough between contradiction, greatly reduce the overall dimensions of TOSA optical texture.
Accompanying drawing explanation
Fig. 1 is TOSA optical texture schematic diagram of the present invention;
Wherein: 1. laser array, 11. laser instruments, 2. the first coupled lens group, 21. first coupled lens, 3. multimode fiber array, 31. multimode optical fibers, 4. the second coupled lens group, 41. second coupled lens, 5. scanning lens, 6. grating, 7. collimating apparatus.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1, a kind of TOSA optical texture, comprises laser array 1, the first coupled lens group 2, multimode fiber array 3, second coupled lens group 4, scanning lens 5, grating 6, the collimating apparatus 7 that are arranged in order along light path; Laser instrument 11, first coupled lens 21 that described laser array 1, first coupled lens group 2, multimode fiber array 3, the second coupled lens group 4 be arranged in order along light path is connected along light path successively by N group, multimode optical fiber 31, second coupled lens 41 form, present embodiment is 4 groups, can arrange as required during concrete use, grating 6 is located at the back focus place of scanning lens 5.
During concrete use, the light beam that laser array is launched is by entering multimode fiber array after the first coupled lens group coupling, multimode fiber array upwards arranges at one-dimensional square, be connected with aforesaid laser instrument, what be worth proposition is, laser instrument arrangement is spatially unrestricted, only need ensure that the bending angle of optical fiber cable is not quite to affecting transmission performance.Multimode fiber array is again by after the second coupled lens group collimation, and light beam enters scanning lens, and scanning lens is placed between the second coupled lens group and grating, and the drop point of light beam on grating overlaps with the back focus of scanning lens.Therefore, the position of each multimode optical fiber in multimode fiber array determines incident angle when its emergent light incides grating surface, by Reasonable adjustment multimode fiber array, all light beams can be made identical through the angle of diffraction after grating, thus be coupled into a branch of, the light beam closing bundle receives rear output by collimating apparatus, thus realizes the function of TOSA.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; in the form and details the present invention is made a variety of changes, be protection scope of the present invention.
Claims (2)
1. a TOSA optical texture, is characterized in that: comprise the laser array, the first coupled lens group, multimode fiber array, the second coupled lens group, scanning lens, grating, the collimating apparatus that are arranged in order along light path; The laser instrument that described laser array, the first coupled lens group, multimode fiber array, the second coupled lens group be arranged in order along light path is connected along light path successively successively by N group, the first coupled lens, multimode optical fiber, the second coupled lens form, described N >=2, described grating is located at the back focus place of scanning lens.
2. a kind of TOSA optical texture according to claim 1, is characterized in that: the multimode optical fiber in described multimode fiber array is along one-dimensional square to arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725377.9A CN104749713A (en) | 2013-12-25 | 2013-12-25 | TOSA optical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725377.9A CN104749713A (en) | 2013-12-25 | 2013-12-25 | TOSA optical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104749713A true CN104749713A (en) | 2015-07-01 |
Family
ID=53589674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725377.9A Pending CN104749713A (en) | 2013-12-25 | 2013-12-25 | TOSA optical structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749713A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115753718A (en) * | 2022-11-24 | 2023-03-07 | 安徽皖仪科技股份有限公司 | Light path system of real-time fluorescence quantitative PCR instrument |
| CN115933075A (en) * | 2023-01-03 | 2023-04-07 | 武汉光迅科技股份有限公司 | Optical fiber array and optical assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050207454A1 (en) * | 2004-03-16 | 2005-09-22 | Andrei Starodoumov | Wavelength stabilized diode-laser array |
| CN102208753A (en) * | 2011-04-27 | 2011-10-05 | 苏州华必大激光有限公司 | External cavity semiconductor laser with multi-wavelength combination |
| CN103080819A (en) * | 2010-09-06 | 2013-05-01 | 国立大学法人大阪大学 | Laser device |
-
2013
- 2013-12-25 CN CN201310725377.9A patent/CN104749713A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050207454A1 (en) * | 2004-03-16 | 2005-09-22 | Andrei Starodoumov | Wavelength stabilized diode-laser array |
| CN103080819A (en) * | 2010-09-06 | 2013-05-01 | 国立大学法人大阪大学 | Laser device |
| CN102208753A (en) * | 2011-04-27 | 2011-10-05 | 苏州华必大激光有限公司 | External cavity semiconductor laser with multi-wavelength combination |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115753718A (en) * | 2022-11-24 | 2023-03-07 | 安徽皖仪科技股份有限公司 | Light path system of real-time fluorescence quantitative PCR instrument |
| CN115933075A (en) * | 2023-01-03 | 2023-04-07 | 武汉光迅科技股份有限公司 | Optical fiber array and optical assembly |
| CN115933075B (en) * | 2023-01-03 | 2025-01-28 | 武汉光迅科技股份有限公司 | Optical fiber array and optical component |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
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| WD01 | Invention patent application deemed withdrawn after publication |