CN201716439U - Single-fiber, two-way and dual-port optical transmission and reception integrated component - Google Patents
Single-fiber, two-way and dual-port optical transmission and reception integrated component Download PDFInfo
- Publication number
- CN201716439U CN201716439U CN2010202563304U CN201020256330U CN201716439U CN 201716439 U CN201716439 U CN 201716439U CN 2010202563304 U CN2010202563304 U CN 2010202563304U CN 201020256330 U CN201020256330 U CN 201020256330U CN 201716439 U CN201716439 U CN 201716439U
- Authority
- CN
- China
- Prior art keywords
- optical
- signal
- single fiber
- wavelength
- light
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Optical Communication System (AREA)
Abstract
The utility model provides a single-fiber, two-way and dual-port optical transmission and reception integrated component, which comprises an optical transmitter, a single optical fiber, an optical receiver and a second wavelength division multiplex (WDM) filter. The optical transmitter is used for transmitting an output optical signal Lambada1; the optical end face of the single optical fiber is coupled with the output optical signal Lambada1 to form a horizontal optical axis, and the signal optical fiber is used for two-way transmission of the output optical signal Lambada1 and an input optical signal Lambada2; the optical receiver is provided with an optical window type ball lens pipe cap and also a first WDM filter in the pipe shell, is arranged on a vertical optical axis crossing the horizontal optical axis and is used for receiving the input optical signal Lambada2; and the second WDM filter is arranged on the horizontal optical axis, is inclined for 45 degrees and is used for totally transmitting the output optical signal Lambada1 to the optical end face of the signal optical fiber for emergence and totally reflecting the input optical signal Lambada2 transmitted by the optical end face of the single optical fiber to the optical receiver, and a wavelength division multiplexing filter is arranged on the optical end face of the signal optical fiber and is used for two-way transmission of the output optical signal Lambada1 and the input optical signal Lambada2 and reflection of optical signal with other wavelengths. The utility model can satisfy the needs for receiving signals of multiple wavelengths with the channel spacing being 20nm and the isolation being 35dB.
Description
Technical field
The utility model relates to and is used for EPON (Passive Optical Network, PON) the single fiber transmitted in both directions optical assembly of system relates in particular to the light transmit-receive integrated assembly of a kind of single fiber bi-directional dual-port that ONU (the Optical Network Unit) module of a kind of GPON of being used for (Gigabit Passive Optical Network) system is used.
Background technology
High speed development along with Network, especially big flow broadband services such as IPTV, HDTV, two-way video and game on line carries out gradually with universal, user's demand will increase progressively with the order of magnitude, existing GPON technology only uses a pair of communication wavelengths (1310/1490nm) not satisfy the requirement that the user selects other Virtual network operator, and the law of a lot of countries is all forbidden the monopolistic behavior of network operator now.Increasing how right communication wavelengths in existing GPON system uses and makes the user can obtain the better communications network service that a plurality of operators provide.Coarse Wavelength Division Multiplexing (Coarse Wavelength Division Multiplexing is called for short CWDM) technology is applied to and just can have satisfied the demand that at present how tame network operator is got involved in the existing GPON network system.
ITU-T G.984.X standard has determined that GPON ONU end physical layer modes is the asymmetric mode transmission, promptly adopts descending reception of 2.5G speed and the up emission of 1.25G/bs speed.CWDM GPON adopts 5 pairs of wavelength applications in 5 different operators, the supporting wavelength of i.e. emission/reception: 1270nm/1450nm, 1290nm/1470nm, 1310nm/1490nm, 1330nm/1510nm, 1350nm/1530nm, this shows that it receives the 20nm that is spaced apart of wavelength channel, the isolation of adjacency channel is that the demand of 35dB is to WDM filter plate (Wavelength Divided Multiplex Filter, abbreviation WDM filter plate) performance requirement is than higher, the light transmit-receive integrated assembly of single fiber bi-directional dual-port commonly used at present, because optical receiver all adopts and converges the light mode and receive, and can not satisfy the requirement of multi-wavelength isolation.
The utility model content
For overcoming above shortcoming, the utility model provides compact conformation and can satisfy the high light transmit-receive integrated assembly of a kind of single fiber bi-directional dual-port of the narrow insulated degree requirement of multi-wavelength channel spacing.
For reaching above goal of the invention, the utility model provides a kind of single fiber bi-directional dual-port light transmit-receive integrated assembly, comprising: an optical transmitting set is used to launch an output light signal λ 1; One single fiber, its light end face and described output light signal λ 1 optically-coupled form horizontal optical axis, are used for the described output light signal of a transmitted in both directions λ 1 and an input optical signal λ 2; The optical receiver of one globe lens optical window type pipe cap and built-in one the one WDM filter plate of shell is positioned on the vertical optical axis with described horizontal optical axis intersection, is used to receive described input optical signal λ 2; One the 2nd WDM filter plate, be positioned on the described horizontal optical axis and tilt 45 °, be used for the described output light signal of total transmissivity λ 1 to the outgoing of single fiber light end face, and the input optical signal λ 2 of the described single fiber light of total reflection surface feeding sputtering is to described optical receiver, described single fiber light end face is provided with the wavelength-division multiplex filter, be used for the described output light signal of two-way transmission λ 1 ± 10nm and an input optical signal λ 2 ± 10nm, reflect the light signal of other wavelength.
Described wavelength-division multiplex filter is the wavelength-division multiplex film that described single fiber light end face directly is coated with.
Described wavelength-division multiplex filter is one the 3rd WDM filter plate that single fiber light end face is pasted.
Also comprise the 4th WDM filter plate, place on the horizontal optical axis between described the 2nd WDM filter plate and the optical transmitting set, be used for the output light signal λ 1 ± 10nm of total transmissivity optical transmitting set emission with 6 ° at pitch angle.
Described output light signal λ 1 wavelength is 1270nm, 1290nm, 1310nm, 1330nm or 1350nm.
Described input optical signal λ 2 wavelength are 1450nm, 1470nm, 1490nm, 1510nm or 1530nm.
In the said structure, because on the common light transmit-receive integrated modular construction of single fiber bi-directional dual-port basis, single fiber light end face has been increased by a wavelength-division multiplex filter, can two-way transmission export light signal λ 1 ± 10nm and an input optical signal λ 2 ± 10nm, reflected the light signal of other wavelength.Make whole assembly can satisfy a plurality of wavelength channels of reception and be spaced apart 20nm, and the demand of adjacent channel isolation 35dB.
Description of drawings
Fig. 1 represents the light transmit-receive integrated assembly first example structure synoptic diagram of the utility model single fiber bi-directional dual-port.
Fig. 2 represents that single fiber light end face shown in Figure 1 directly plates the local enlarged diagram of wavelength-division multiplex filtering film.
Fig. 3 represents the light transmit-receive integrated assembly second example structure synoptic diagram of the utility model single fiber bi-directional dual-port.
Fig. 4 represents that single fiber light end face shown in Figure 3 pastes the local enlarged diagram of the 2nd WDM filter plate.
Embodiment
Describe the utility model most preferred embodiment in detail below in conjunction with accompanying drawing.
The light transmit-receive integrated assembly of the first embodiment single fiber bi-directional dual-port as shown in Figure 1, comprise: an optical transmitting set 10, be used to launch the output light signal λ 1 of a 1.25G/bs speed, output light signal λ 1 is spaced apart 1270nm, 1290nm, 1310nm, 1330nm or the 1350nm of 20nm for wavelength channel.One single fiber 20, its light end face forms horizontal optical axis with output light signal λ 1 optically-coupled, be used for the input optical signal λ 2 of transmitted in both directions output light signal λ 1 and a 2.5G/bs speed, input optical signal λ 2 is spaced apart 1450nm, 1470nm, 1490nm, 1510nm or the 1530nm of 20nm for wavelength channel.One is provided with the optical receiver 30 of globe lens optical window type pipe cap 31 and built-in one the one WDM filter plate 32 of shell, be positioned on the vertical optical axis with horizontal optical axis intersection, be used to receive input optical signal λ 2 from single fiber 20, wherein, the one WDM filter plate 32 is used for whole transmission input optical signal λ 2 ± 10nm, reflects other wavelength light signal.For optical receiver 30 can be reached receiving the multi-wavelength channel spacing is 20nm, adjacent channel isolation is the requirement of 35dB, single fiber 20 smooth end faces are provided with the wavelength-division multiplex filter, in the present embodiment, shown in the A partial enlarged drawing as shown in Figure 2, this wavelength-division multiplex filter adopts the light end face with single fiber 20 directly to plate a wavelength-division multiplex film 60A, is used for two-way transmission output light signal λ 1 ± 10nm and an input optical signal λ 2 ± 10nm, reflects the light signal of other wavelength.One the 2nd WDM filter plate 40, be positioned on the horizontal optical axis and tilt 45 °, its effect comprises two aspects: first, be incident to the 40 back total reflections of the 2nd WDM filter plate by the input optical signal λ 2 after the wavelength-division multiplex film 60A transmission, the optical signals optical receiver 30 after the reflection receives and converts electric signal output to; The second, total transmissivity is by the output light signal λ 1 of optical transmitting set 10 emissions, and the light signal after the transmission is incident to the wavelength-division multiplex film 60A of the light end face of single fiber 20, and all saturating back is outwards exported by single fiber 20.
The light transmit-receive integrated assembly of the second embodiment single fiber bi-directional dual-port as shown in Figure 3, its structure is a kind of improvement of making on the basis of first embodiment, shown in the B partial enlarged drawing as shown in Figure 4, only the 20 smooth end faces of the single fiber among Fig. 1 are directly plated wavelength-division multiplex film 60A and change into direct one the 3rd WDM filter plate 60B of stickup of single fiber 20 smooth end faces, its effect is with directly plating wavelength-division multiplex film is just the same.The structure of other parts is constant, and optic path is also identical.
Above-mentioned two kinds of embodiment, all can make improvements, when the spectrum property of optical transmitting set 10 can not guarantee that higher output light signal λ 1 requires, also comprise the 4th WDM filter plate 70, place on the horizontal optical axis between the 2nd WDM filter plate 40 and the optical transmitting set 10 with 6 ° at pitch angle, be used for the output light signal λ 1 ± 10nm of total transmissivity optical transmitting set 10 emissions.
Claims (6)
1. light transmit-receive integrated assembly of single fiber bi-directional dual-port comprises: an optical transmitting set is used to launch an output light signal λ 1; One single fiber, its light end face and described output light signal λ 1 optically-coupled form horizontal optical axis, are used for the described output light signal of a transmitted in both directions λ 1 and an input optical signal λ 2; The optical receiver of one globe lens optical window type pipe cap and built-in one the one WDM filter plate of shell is positioned on the vertical optical axis with described horizontal optical axis intersection, is used to receive described input optical signal λ 2; One the 2nd WDM filter plate, be positioned on the described horizontal optical axis and tilt 45 °, be used for the described output light signal of total transmissivity λ 1 to the outgoing of single fiber light end face, and the input optical signal λ 2 of the described single fiber light of total reflection surface feeding sputtering is to described optical receiver, it is characterized in that, described single fiber light end face is provided with the wavelength-division multiplex filter, is used for the described output light signal of two-way transmission λ 1 ± 10nm and an input optical signal λ 2 ± 10nm, reflects the light signal of other wavelength.
2. the light transmit-receive integrated assembly of single fiber bi-directional dual-port according to claim 1 is characterized in that, described wavelength-division multiplex filter is the wavelength-division multiplex film that described single fiber light end face directly is coated with.
3. the light transmit-receive integrated assembly of single fiber bi-directional dual-port according to claim 1 is characterized in that, described wavelength-division multiplex filter is one the 3rd WDM filter plate that single fiber light end face is pasted.
4. according to claim 2 or the light transmit-receive integrated assembly of 3 described single fiber bi-directional dual-ports, it is characterized in that, also comprise the 4th WDM filter plate, place on the horizontal optical axis between described the 2nd WDM filter plate and the optical transmitting set with 6 ° at pitch angle, be used for the output light signal λ 1 ± 10nm of total transmissivity optical transmitting set emission.
5. the light transmit-receive integrated assembly of single fiber bi-directional dual-port according to claim 4 is characterized in that, described output light signal λ 1 wavelength is 1270nm, 1290nm, 1310nm, 1330nm or 1350nm.
6. the light transmit-receive integrated assembly of single fiber bi-directional dual-port according to claim 4 is characterized in that, described input optical signal λ 2 wavelength are 1450nm, 1470nm, 1490nm, 1510nm or 1530nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202563304U CN201716439U (en) | 2010-07-09 | 2010-07-09 | Single-fiber, two-way and dual-port optical transmission and reception integrated component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202563304U CN201716439U (en) | 2010-07-09 | 2010-07-09 | Single-fiber, two-way and dual-port optical transmission and reception integrated component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201716439U true CN201716439U (en) | 2011-01-19 |
Family
ID=43462444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202563304U Expired - Lifetime CN201716439U (en) | 2010-07-09 | 2010-07-09 | Single-fiber, two-way and dual-port optical transmission and reception integrated component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201716439U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811097A (en) * | 2011-05-31 | 2012-12-05 | 深圳新飞通光电子技术有限公司 | Single-fiber bidirectional optical transmitting and receiving integrated assembly for optical line terminal (OLT) module |
| CN103018857A (en) * | 2012-12-26 | 2013-04-03 | 东南大学 | Light transceiving device for visible light optical fiber transmission |
| CN104749712A (en) * | 2013-12-25 | 2015-07-01 | 华为技术有限公司 | Single-fiber bidirectional module |
| CN106772834A (en) * | 2016-12-09 | 2017-05-31 | 武汉光迅科技股份有限公司 | A kind of SFP modules with wave splitting/composing |
-
2010
- 2010-07-09 CN CN2010202563304U patent/CN201716439U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811097A (en) * | 2011-05-31 | 2012-12-05 | 深圳新飞通光电子技术有限公司 | Single-fiber bidirectional optical transmitting and receiving integrated assembly for optical line terminal (OLT) module |
| CN103018857A (en) * | 2012-12-26 | 2013-04-03 | 东南大学 | Light transceiving device for visible light optical fiber transmission |
| CN103018857B (en) * | 2012-12-26 | 2014-10-29 | 东南大学 | Light transceiving device for visible light optical fiber transmission |
| CN104749712A (en) * | 2013-12-25 | 2015-07-01 | 华为技术有限公司 | Single-fiber bidirectional module |
| CN106772834A (en) * | 2016-12-09 | 2017-05-31 | 武汉光迅科技股份有限公司 | A kind of SFP modules with wave splitting/composing |
| CN106772834B (en) * | 2016-12-09 | 2019-03-19 | 武汉光迅科技股份有限公司 | A kind of SFP module with wave splitting/composing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102279445B (en) | Single-fiber bidirectional double-port light receiving and transmitting integral component | |
| CN203301489U (en) | Light emitting device possessing multipath wavelength channels, light receiving element possessing multipath wavelength channels and optical module | |
| EP3088928B1 (en) | Optical transceiver and optical communications product | |
| CN205656355U (en) | Multi -wavelength light send -receiver device | |
| CN1886564B (en) | Multi-wavelength, bi-directional optical multiplexer | |
| US8532489B2 (en) | Multi-fiber ten gigabit passive optical network optical line terminal for optical distribution network coexistence with gigabit passive optical network | |
| KR101726650B1 (en) | Optical transceiver module with dual band pass wdm coupler | |
| CN107710645B (en) | Optical device and optical module | |
| US20060083514A1 (en) | Bi-directional OADM module and solution for the optical access network | |
| CN106788754B (en) | A kind of optical couplers, WDM, dual-wavelength optical port device for high-speed optical module | |
| CN104914519B (en) | A kind of 40G optical transceiver modules | |
| CN105739032A (en) | Single-interface multi-wavelength transmitting and receiving assembly | |
| CN201716439U (en) | Single-fiber, two-way and dual-port optical transmission and reception integrated component | |
| CN104350400A (en) | Arrayed waveguide grating, optical module provided with the arrayed waveguide, and optical communications system | |
| JP2010204636A (en) | Three-way optical device | |
| US20040161240A1 (en) | Module having two bi-directional optical transceivers | |
| CN107065076A (en) | A kind of OWDM integrated device of microstructure and preparation method thereof | |
| CN201740889U (en) | Single-fiber bidirectional dual-port optical-transceiving integrated module | |
| US6816645B2 (en) | High reflection isolation device | |
| CN116346238A (en) | 50G passive optical network receiving end assembly | |
| CN1971324A (en) | A single fiber three-way wave separator/wave combination device | |
| US20090226171A1 (en) | WDM optical transmit-receive device | |
| KR102046439B1 (en) | Bidirectional optical transceiver constituting a refractive index distribution type lens that reduces the incidence angle | |
| JP3243326U (en) | Optical fiber network signal receiving module capable of receiving same and different wavelengths | |
| KR200435229Y1 (en) | Coarse Wavelength Division Multiplexer Passive Optical Network System having 8 Channle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |
|
| CX01 | Expiry of patent term |