CN107479145A - Beneficial to the optical transceiver module component for improving coupling efficiency - Google Patents
Beneficial to the optical transceiver module component for improving coupling efficiency Download PDFInfo
- Publication number
- CN107479145A CN107479145A CN201710599463.8A CN201710599463A CN107479145A CN 107479145 A CN107479145 A CN 107479145A CN 201710599463 A CN201710599463 A CN 201710599463A CN 107479145 A CN107479145 A CN 107479145A
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- China
- Prior art keywords
- optical filter
- optical
- receiving terminal
- laser
- filter
- 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.)
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Classifications
-
- 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
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4244—Mounting of the optical elements
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4245—Mounting of the opto-electronic elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention is disclosed beneficial to the optical transceiver module component for improving coupling efficiency, including transmitting terminal, the first optical filter, the second optical filter, the 3rd optical filter, the first receiving terminal, the second receiving terminal, public port；Transmitting terminal includes laser chip, positive lens and the negative lens of generation laser, and the first optical signal that laser chip is sent is incident in negative lens after positive lens converges, switchs to parallel light emergence through negative lens, is finally received by the first receiving terminal；Second optical signal is finally received by the second receiving terminal；The 3rd optical signal that laser chip is sent is incident in negative lens after positive lens converges, and switchs to parallel light emergence through negative lens, reaches the first optical filter, received after the first filter transmission by public port optical fiber.Multi-wavelength component proposed by the present invention can obtain higher coupling efficiency by the less volume of shorter light path, solve adjacent wavelength interference and can not be effectively separated difficulty.
Description
Technical field
The present invention relates to a kind of optical transceiver module component in technical field of optical fiber communication, more particularly, to beneficial to raising coupling
Close the optical transceiver module component of efficiency.
Background technology
Increasingly popularized with the application of fiber optic network, especially all over the world intelligent acess FTTH (Fiber To The
Home) project is progressively implemented, and the propulsion of point-to-point data transfer, particularly unification of three nets, and fiber to the home network from
EPON and GPON is upgraded to fiber to the home network (NGPON1 is divided into XGPON and 10GEPON again) of future generation, mixed networking occurs
Situation, in the market are also increasing for the demand of optical fiber component.
Such as, it is necessary to the wavelength of processing is 1270nm inside XGPON standards, and 1577nm, compared in original GPON standards
1310nm, 1490nm, and the 1550nm inside unification of three nets, wavelength interval become most narrow from original most narrow 60nm
27nm.Actual transition band becomes 15nm, corresponding technical difficulty is multiplied from original 40nm.
The principle of the optical fiber receiver-transmitter module component of simplest structure, as shown in figure 1, the first optical signal λ 1 and the second optical signal
λ 2 enters optical module by optical fiber by input/output terminal 6, and in optical module, the first optical filter 21 and light path are in 45 degree of angles,
Light beam passes through the first optical filter 21, and the first optical signal λ 1 occurs 90 degree of reflections and received by the first receiving terminal 31；Second optical signal λ 2
Pass through the second optical filter 22 after being transmitted by the first optical filter 21 again, then the second optical signal λ 2 is reflected by through the second optical filter 22
Two receiving terminals 32 receive.First receiving terminal 31 and the second receiving terminal 32 are a kind of photodetector, for opto-electronic conversion, believe light
Number it is converted into electric signal.First transmitting terminal 71 and the second transmitting terminal 72 use laser diode, the first transmitting terminal 71 send
Three optical signal λ 3 are transmitted into input/output terminal 6 by the 3rd optical filter 23, the second optical filter 22 and the first optical filter 21, and second
The 4th optical signal λ 4 that transmitting terminal 72 is sent is after the reflection of the 3rd optical filter 23, then by the second optical filter 22 and the first optical filter
21 are transmitted into input/output terminal 6.
In this configuration, because the first optical filter, the second optical filter and the 3rd optical filter must be 45 ° of incidences, realize
The transmission and reflection of different wave length, so to meet application requirement, then four wavelength intervals of transmitting terminal and receiving terminal just must
Must be sufficiently wide, otherwise may result in transmission peak wavelength signal or reflection wavelength signal can not effectively separate.When common port input
When the wavelength of two optical signals is spaced closely together, the first optical filter and the second optical filter can not just grow the two adjacent waves effectively
Separate, certainly in this application requirement, the optical signal of transmission is changed into collimated light beam, can be effective by four optical signals
Separate, but such cost is very high.
Application No. CN201520293566.8 patent discloses a kind of multi-wavelength component for optical-fibre communications, is used for
Multiwavelength laser coupling in single fiber transmitting-receiving communication, as shown in Fig. 2 the component includes emission part 8, acceptance division 9, optical coupling portion
10 and fiber port 14.Fiber port 14 is provided with the collimation portion 5 collimated to laser.Emission part 8 includes at least one transmitting
End, transmitting terminal include the laser chip 11 and collimation lens set of generation laser；The laser chip 11 of each transmitting terminal 1 generates laser
Wavelength is different；The collimation lens set is located at the light-emitting window of transmitting terminal 1, and laser chip 11 generates the collimated lens group convergence of laser
With after collimation by light-emitting window normal sheaf optical coupling portion, although making the brightness of light emission part shoot laser, the depth of parallelism in component equal
There is preferable guarantee, and optical path component is easy to encapsulate and adjusted, and optocoupler seaming element is carried the coupling ability of multiwavelength laser
Rise, but an only acceptance division 9, it is unfavorable for the packet of optical signal.
The multi-wavelength component of parallel optical coupling proposed by the present invention can obtain higher coupling by shorter light path and imitate
Rate, solve adjacent wavelength interference and can not be effectively separated difficulty.
The content of the invention
The technical problems to be solved by the invention be adjacent wavelength interference and can not be effectively separated difficulty, it is therefore intended that
The optical transceiver module component for being beneficial to improve coupling efficiency is provided, higher coupling efficiency is obtained by shorter light path, is made adjacent
Wavelength is effectively separated and received by different receiving terminals.
The present invention is achieved through the following technical solutions：
Beneficial to the optical transceiver module component for improving coupling efficiency, including transmitting terminal, the first optical filter, the second optical filter, the
Three optical filters, the first receiving terminal, the second receiving terminal, public port；
Transmitting terminal includes laser chip, positive lens and the negative lens of generation laser, the first optical signal that laser chip is sent
Negative lens is incident in after positive lens converges, switchs to parallel light emergence through negative lens, the first optical filter is reached, through the first optical filter
The second optical filter is reached after reflection, is received after the second filter transmission by the first receiving terminal, while directional light is obtained, just
The focal length of lens and negative lens is long, and in coupled system regulation, susceptibility declines, and stability improves, just saturating by adjusting
The relative position of mirror and negative lens, to realize the regulation of coupled system, in system error analysis, the fault tolerance of which
Maximum, it also just correspond to optimal structural stability；
The second optical signal that laser chip is sent is incident in negative lens after positive lens converges, and switchs to directional light through negative lens
Outgoing, the first optical filter is reached, the second optical filter is reached after the reflection of the first optical filter, the is reached after the reflection of the second optical filter
Three optical filters, received after the 3rd filter transmission by the second receiving terminal；
The 3rd optical signal that laser chip is sent is incident in negative lens after positive lens converges, and switchs to directional light through negative lens
Outgoing, the first optical filter is reached, is received after the first filter transmission by public port optical fiber；
First optical signal, the second optical signal, the 3rd optical signal have wavelength different from each other, respectively λ 1, λ 2, λ 3；Just
Lens and negative lens are located at transmitting terminal light-emitting window, and the laser of laser chip generation is after positive lens and negative lens convergence and collimation
Projected by light-emitting window；Optical filter is arranged in order in the direction of collimation of public port collimation portion, the reflected waveband of each optical filter
It is different and mutually misaligned；
Conversion between collimated light beam and converging beam is realized by positive lens and negative lens, then filtered by first
Piece, the second optical filter, the reflection of the 3rd optical filter or transmission form different light paths, make the first optical signal, the second optical signal,
Three optical signals arrive separately at the first receiving terminal, the second receiving terminal or public port, so as to effectively by the first optical signal, the second light
Signal, the 3rd optical signal separate.
Further, the public port is provided with the collimation portion collimated to laser beam.
Further, the positive lens of the transmitting terminal uses conventional common processes with laser chip, is sealed to coaxial packaging
Laser diode.
Further, the laser chip of the transmitting terminal is packaged into the laser diode of flat window, is then used with positive lens
The mode of laser welding is fixed.
Further, first receiving terminal and the second receiving terminal are in tilted layout in major axes orientation both sides.
Further, when the public port collimation portion shoot laser wavelength the first optical filter, the second optical filter,
When in the reflected waveband of the 3rd optical filter, corresponding with the wavelength the first receiving terminal or the second receiving terminal are located at corresponding optical filter
Side, the collimation portion shoot laser of public port enters the after the first optical filter, the second optical filter, the reflection of the 3rd optical filter
One receiving terminal or the second receiving terminal.
The present invention compared with prior art, has the following advantages and advantages：
Directional light coupling assembly proposed by the present invention can obtain higher coupling efficiency by shorter light path, solve
The interference of adjacent wavelength and difficulty that can not be effectively separated, adjacent wave length is effectively divided using incident angle small optical filter
Open, it is received by different receiving terminals, so as to effectively reduce cost, effectively separate the optical signal of adjacent wavelength.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the optical transceiver module component structure diagram for being beneficial to improve coupling efficiency of simple structure；
Fig. 2 is Application No. CN201520293566.8 patent structure schematic diagram；
Fig. 3 schematic structural views of the invention.
Mark and corresponding parts title in accompanying drawing：
1- transmitting terminals, 11- laser chips, 12- positive lens, 13- negative lenses, the optical filters of 21- first, the optical filters of 22- second,
The optical filters of 23- the 3rd, the receiving terminals of 31- first, the receiving terminals of 32- second, 4- public ports, 5- collimation portions, 6- input/output terminals,
The transmitting terminals of 71- first, the transmitting terminals of 72- second, 8- emission parts, 9- acceptance divisions, 10- optical coupling portions, 14- fiber ports.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in figure 3, beneficial to improve coupling efficiency optical transceiver module component, including transmitting terminal 1, the first optical filter 21,
Second optical filter 22, the 3rd optical filter 23, the first receiving terminal 31, the second receiving terminal 32, public port 4；
Transmitting terminal 1 includes laser chip 11, positive lens 12 and the negative lens 13 of generation laser, laser chip 11 send the
One optical signal λ 1 is incident in negative lens 13 after the convergence of positive lens 12, switchs to parallel light emergence through negative lens 13, reaches the first filter
Mating plate 21, the second optical filter 22 is reached after the reflection of the first optical filter 21, by the first receiving terminal after the transmission of the second optical filter 22
31 receive, and while directional light is obtained, the focal length of positive lens 12 and negative lens 13 is long, quick in coupled system regulation
Sensitivity declines, and stability improves, by adjusting the relative position of positive lens 12 and negative lens 13, to realize the tune of coupled system
Section, in system error analysis, the fault tolerance of which is maximum, also just correspond to optimal structural stability；
The second optical signal λ 2 that laser chip 11 is sent is incident in negative lens 13 after the convergence of positive lens 12, through negative lens 13
Switch to parallel light emergence, reach the first optical filter 21, the second optical filter 22 is reached after the reflection of the first optical filter 21, through the second filter
Mating plate 22 reaches the 3rd optical filter 23 after reflecting, and is received after the transmission of the second optical filter 42 by the second receiving terminal 32；
The 3rd optical signal λ 3 that laser chip 11 is sent is incident in negative lens 13 after the convergence of positive lens 12, through negative lens 13
Switch to parallel light emergence, reach the first optical filter 21, received after the transmission of the first optical filter 21 by the optical fiber of public port 4；
First optical signal λ 1, the second optical signal λ 2, the 3rd optical signal λ 3 have wavelength different from each other；Positive lens 12 and negative
Lens 13 are located at the light-emitting window of transmitting terminal 1, and the laser that laser chip 11 generates is converged and collimated through positive lens 12 and negative lens 13
Projected afterwards by light-emitting window；Optical filter is arranged in order in the direction of collimation of public port collimation portion, the back wave of each optical filter
Duan Butong and mutually it is misaligned.
Wherein, public port 4 is provided with the collimation portion 5 collimated to laser beam；The positive lens 12 of transmitting terminal 1 is with laser
Chip 11 uses conventional common processes, is sealed to the laser diode of coaxial packaging；The laser chip 11 of transmitting terminal 1 is packaged into flat
The laser diode of window, then fixed with positive lens 12 by the way of laser welding；Due to the wavelength of the first optical signal λ 1 and
The wavelength of two optical signal λ 2 is adjacent wavelength, and two receiving terminals is meet optimal volume and photoelectric properties, the first receiving terminal 31 and the
Two receiving terminals 32 are in tilted layout in major axes orientation both sides；When the wavelength of the shoot laser of collimation portion 5 of public port 4 filters first
Piece 21, the second optical filter 22, the 3rd optical filter 23 reflected waveband in when, the first receiving terminal 31 or the second corresponding with the wavelength
Receiving terminal 32 is located at the side of corresponding optical filter, and the shoot laser of collimation portion 5 of public port 4 is through the first optical filter 21, second
Enter the first receiving terminal 31 or the second receiving terminal 32 after optical filter 22, the reflection of the 3rd optical filter 23.
Conversion between collimated light beam and converging beam is realized by positive lens 12 and negative lens 13, then passes through the first filter
Mating plate 21, the second optical filter 22, the reflection of the 3rd optical filter 23 or transmission form different light paths, make the first optical signal λ 1,
Two optical signal λ 2, the 3rd optical signal λ 3 arrive separately at the end of the first reception 31, the second receiving terminal 32 or public port 4, so as to effectively
Ground separates the first optical signal λ 1, the second optical signal λ 2, the 3rd optical signal λ 3.
Embodiment above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Illustrate, should be understood that the embodiment that these are only the present invention, the protection model being not intended to limit the present invention
Enclose, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in the present invention
Protection domain within.
Claims (6)
1. beneficial to the optical transceiver module component for improving coupling efficiency, it is characterised in that：Including transmitting terminal (1), the first optical filter
(21), the second optical filter (22), the 3rd optical filter (23), the first receiving terminal (31), the second receiving terminal (32), public port (4)；
The transmitting terminal (1) includes laser chip (11), positive lens (12) and the negative lens (13) of generation laser, laser chip
(11) the first optical signal sent is incident in negative lens (13) after positive lens (12) convergence, switchs to directional light through negative lens (13)
Outgoing, the first optical filter (21) is reached, the second optical filter (22) is reached after the first optical filter (21) reflection, through the second optical filter
(22) received after transmiting by the first receiving terminal (31)；
The second optical signal that the laser chip (11) sends is incident in negative lens (13) after positive lens (12) convergence, through negative saturating
Mirror (13) switchs to parallel light emergence, reaches the first optical filter (21), and the second optical filter is reached after the first optical filter (21) reflection
(22) the 3rd optical filter (23), is reached after the second optical filter (22) reflection, is connect after the transmission of the 3rd optical filter (23) by second
Receiving end (32) receives；
The 3rd optical signal that the laser chip (11) sends is incident in negative lens (13) after positive lens (12) convergence, through negative saturating
Mirror (13) switchs to parallel light emergence, reaches the first optical filter (21), by public port (4) light after the first optical filter (21) transmission
Fibre receives；
First optical signal, the second optical signal, the 3rd optical signal have wavelength different from each other.
2. the optical transceiver module component according to claim 1 for being beneficial to improve coupling efficiency, it is characterised in that：It is described public
Port (4) is provided with the collimation portion (5) collimated to laser beam.
3. the optical transceiver module component according to claim 1 for being beneficial to improve coupling efficiency, it is characterised in that：The transmitting
Hold the positive lens (12) of (1) to use conventional common processes with laser chip (11), be sealed to the laser diode of coaxial packaging.
4. the optical transceiver module component according to claim 1 for being beneficial to improve coupling efficiency, it is characterised in that：The transmitting
The laser chip (11) at end (1) is packaged into the laser diode of flat window, then with positive lens (12) by the way of laser welding
It is fixed.
5. the optical transceiver module component according to claim 2 for being beneficial to improve coupling efficiency, it is characterised in that：Described first
Receiving terminal (31) and the second receiving terminal (32) are in tilted layout in major axes orientation both sides.
6. the optical transceiver module component according to claim 2 for being beneficial to improve coupling efficiency, it is characterised in that：When the public affairs
The wavelength of collimation portion (5) shoot laser of port (4) is in the first optical filter (21), the second optical filter (22), the 3rd optical filter altogether
(23) when in reflected waveband, the first receiving terminal (31) corresponding with the wavelength or the second receiving terminal (32) filter positioned at corresponding
The side of piece, collimation portion (5) shoot laser of public port (4) is through the first optical filter (21), the second optical filter (22), the 3rd filter
Enter the first receiving terminal (31) or the second receiving terminal (32) after mating plate (23) reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599463.8A CN107479145A (en) | 2017-07-21 | 2017-07-21 | Beneficial to the optical transceiver module component for improving coupling efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599463.8A CN107479145A (en) | 2017-07-21 | 2017-07-21 | Beneficial to the optical transceiver module component for improving coupling efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107479145A true CN107479145A (en) | 2017-12-15 |
Family
ID=60595216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710599463.8A Pending CN107479145A (en) | 2017-07-21 | 2017-07-21 | Beneficial to the optical transceiver module component for improving coupling efficiency |
Country Status (1)
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| CN (1) | CN107479145A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989106A (en) * | 2020-01-02 | 2020-04-10 | 福建天蕊光电有限公司 | High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission |
| CN111194420A (en) * | 2018-07-23 | 2020-05-22 | 华为技术有限公司 | Optical assembly, optical module and communication equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808299A (en) * | 2015-05-08 | 2015-07-29 | 福州宏旭科技有限公司 | Multi-wavelength component for fiber optic communication |
| CN204694885U (en) * | 2015-05-08 | 2015-10-07 | 福州宏旭科技有限公司 | A kind of multi-wavelength assembly for optical-fibre communications |
| CN205317984U (en) * | 2015-12-01 | 2016-06-15 | 福州腾景光电科技有限公司 | Intensive wavelength single fiber three -dimensional subassembly |
| CN205656355U (en) * | 2016-04-08 | 2016-10-19 | 福建天蕊光电有限公司 | Multi -wavelength light send -receiver device |
-
2017
- 2017-07-21 CN CN201710599463.8A patent/CN107479145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808299A (en) * | 2015-05-08 | 2015-07-29 | 福州宏旭科技有限公司 | Multi-wavelength component for fiber optic communication |
| CN204694885U (en) * | 2015-05-08 | 2015-10-07 | 福州宏旭科技有限公司 | A kind of multi-wavelength assembly for optical-fibre communications |
| CN205317984U (en) * | 2015-12-01 | 2016-06-15 | 福州腾景光电科技有限公司 | Intensive wavelength single fiber three -dimensional subassembly |
| CN205656355U (en) * | 2016-04-08 | 2016-10-19 | 福建天蕊光电有限公司 | Multi -wavelength light send -receiver device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194420A (en) * | 2018-07-23 | 2020-05-22 | 华为技术有限公司 | Optical assembly, optical module and communication equipment |
| CN110989106A (en) * | 2020-01-02 | 2020-04-10 | 福建天蕊光电有限公司 | High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission |
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Application publication date: 20171215 |