CN202404277U - Optical fiber multiplexer - Google Patents
Optical fiber multiplexer Download PDFInfo
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- CN202404277U CN202404277U CN2011203730807U CN201120373080U CN202404277U CN 202404277 U CN202404277 U CN 202404277U CN 2011203730807 U CN2011203730807 U CN 2011203730807U CN 201120373080 U CN201120373080 U CN 201120373080U CN 202404277 U CN202404277 U CN 202404277U
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- filter plate
- optical fiber
- lens
- sleeve pipe
- wire jumper
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Abstract
An optical fiber multiplexer comprises a first jumper wire head. A ceramic insert core, a first sleeve pipe, a first lens and a first 45 DEG filter plate, a zero DEG filter plate, a photoelectric detector, a second 45 DEG filter plate, a second lens, a second sleeve pipe, a second jumper wire head and a substrate which are arranged in sequence are provided in the first jumper wire head. The first sleeve pipe is used for holding the first jumper wire head and the first lens; the input light input from the first jumper wire head is collimated by the first lens in the first sleeve pipe, the emitting light beam after the collimation arrives at the first 45 DEG filter plate, the light beam reflected by the first 45 DEG filter plate is reflected by the second 45 DEG filter plate, and the reflected light beam is output through the second lens and the second jumper wire head in the second sleeve pipe; and the light beam transmitted by the first 45 DEG filter plate passes through the 0 DEG filter plate, and the output light beam is received by the photoelectric detector. According to the utility model, a fiber collimator is unnecessary and saved, no coiling problem of a device cascade type module exists, and the optical fiber multiplexer is advantageous in that the module volume is small, the isolation degree is high, the cost is low, etc.
Description
Technical field
The utility model belongs to the optical fiber communication technology field.
Background technology
Because optical-fibre communications development rapidly,, directly require the width of maximum use optical fiber along with the lifting of transmission capacity requirements (like the transmission of video image etc.).Optical communication device and module are the elements of optical fiber telecommunications system, and along with optical fiber telecommunications system extensive commercialization in the world, to the requirements at the higher level of system cost, volume, its product must develop to miniaturization, modularization, modularization direction.
With the light wavelength division multiplexing device is example; OWDM (Wavelength Division Multiplexing; Be called for short WDM) technology be light modulating signal with the different optical wavelength in each road by transmitting in optical wavelength multiplexing to an optical fiber, be to improve one of effective scheme of optical fiber communication capacity.
Existing a kind of OWDM structure is as shown in Figure 1, is made up of double-fiber collimator 21, filter plate 31, single fiber collimating apparatus 22 and package casing 41.Flashlight 11 is directly incident on filter plate 31 from the 21 incident end incidents of single fiber collimating apparatus behind collimation, its reflected light 13 is by the exit end output of double-fiber collimator 21, and its transmitted light 12 is by 22 outputs of single fiber collimating apparatus.
Existing another kind of light wave demultiplexer spare structure is as shown in Figure 2, is made up of double-fiber collimator 21, filter plate 31, photo-detector 41 and package casing 51.Flashlight 11 is directly incident on filter plate 31 from double-fiber collimator 21 incident end incidents behind collimation, its reflected light 13 is by the exit end output of double-fiber collimator 21, and its transmitted light 12 is monitored by photo-detector 41.
Existing common 1 * 4 channel C WDM module is that the cascade through 4 three port CWDM devices forms, and the reflection end signal of each device is as the input end signal of next three port devices.Because each CWDM device all needs each one of two/single fiber collimating apparatus, makes that the module optical fiber collimator is many, cost is higher, and owing to receive the restriction of optical fiber coiling, the module volume is bigger.
Advantages such as the optical fiber multiplexing device that the utility model proposes has reduced unnecessary optical fiber collimator, does not also have the coiling problem of device cascade pattern piece, and the module volume is little, also has the isolation height, and the flexible configuration degree is high, and cost is low, and the insertion loss is low.
Summary of the invention
The purpose of the utility model is to provide a kind of optical fiber multiplexing device that is used for light communication system.
First kind of optical fiber multiplexing device that the utility model proposes is light wavelength division multiplexing device; Comprise and be provided with ceramic insertion core, first sleeve pipe, first lens and the one 45 ° of filter plate that is arranged in order, 0 ° of filter plate, photodetector, the 2 45 ° of filter plate, second lens, second sleeve pipe, the second wire jumper head, substrate in the first wire jumper head, this wire jumper head; This first sleeve pipe is used for above-mentioned first wire jumper head of fixing and above-mentioned first lens; The outgoing beam of input light after first collimated in first sleeve pipe by this wire jumper head input arrives the one 45 ° of filter plate; Through the one 45 ° of filter plate beam reflected again after the reflection of the 2 45 ° of filter plate, second lens and the second wire jumper head output of folded light beam in second sleeve pipe; Receive by photodetector from the light beam of the one 45 ° of filter plate transmission output beam after through 0 ° of filter plate.
Second kind of optical fiber multiplexing device that the utility model proposes i.e. fixing/variable optical attenuator or light shutter device; Comprise and be provided with ceramic insertion core, first sleeve pipe, first lens and the one 45 ° of filter plate that is arranged in order, 0 ° of filter plate, photodetector, attenuator or catoptron or prism, the 2 45 ° of filter plate, second lens, second sleeve pipe, the second wire jumper head, substrate in the first wire jumper head, this wire jumper head; This first sleeve pipe is used for above-mentioned first wire jumper head of fixing and above-mentioned first lens; The outgoing beam of input light after first collimated in first sleeve pipe by this wire jumper head input arrives the one 45 ° of filter plate; Through the one 45 ° of filter plate beam reflected process attenuator or catoptron or prism; After the 2 45 ° of filter plate reflection, second lens and the second wire jumper head of folded light beam in second sleeve pipe exported again; Receive by photodetector from the light beam of the one 45 ° of filter plate transmission output beam after through 0 ° of filter plate.
This multiplexing structure has that configuration flexibility height, isolation are high, cost is low, insert characteristics such as loss is low, and be widely used in optical line terminal, optical network unit, fields such as Fiber to the home, fiber-optic transceiver, IPTV (IPTV), CATV (CATV), unification of three nets.
Combine embodiment that the utility model is further described with reference to the accompanying drawings.
Description of drawings
Fig. 1 is existing a kind of light wavelength division multiplexing device structural representation.
Fig. 2 is existing another kind of light wavelength division multiplexing device structural representation.
Fig. 3 is existing a kind of collimator structure synoptic diagram.
Fig. 4 is that existing collimator structure module is connected synoptic diagram with communication network.
Fig. 5 A is the decomposition elevation that constitutes collimator structure in the utility model.
Fig. 5 B is the decomposing section that constitutes collimator structure in the utility model.
Fig. 5 C is the exploded perspective view that constitutes collimator structure in the utility model.
Fig. 6 A is the combination front elevation that constitutes collimator structure in the utility model.
Fig. 6 B is the combination section that constitutes collimator structure in the utility model.
Fig. 6 C is the combination stereogram that constitutes collimator structure in the utility model.
Fig. 7 is first kind of example structure synoptic diagram of the utility model multiplexing structure.
Second kind of example structure synoptic diagram of Fig. 8 the utility model multiplexing structure.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, below will do further explain to the utility model through specific embodiment and relevant drawings.
A kind of optical fiber multiplexing device, by elementary cell: wire jumper head, sleeve pipe, lens, 45 ° of filter plates, 0 ° of filter plate, photodetector, substrate etc. constitute.
Please refer to Fig. 7, it is wavelength division multiplex device that the utility model provides first kind of optical fiber multiplexing device.This light wavelength division multiplexing device comprises and is provided with ceramic insertion core, first sleeve pipe 21, first lens 31 and 41, the 0 ° of filter plate 43 of the one 45 ° of filter plate that is arranged in order, the 51, the 2 45 ° of filter plate of photodetector 42, second lens 32, second sleeve pipe 22, the second wire jumper head 12, substrate 61 in the first wire jumper head 11, this first wire jumper head 11; This first sleeve pipe 21 is used for the above-mentioned first wire jumper head 11 and above-mentioned first lens 31 of fixing; Input light 100 by 11 inputs of the first wire jumper head; Behind first lens, 31 collimations of 21 li of first sleeve pipes; Outgoing beam 311 arrives the one 45 ° of filter plate 41; Light beam through the one 45 ° of filter plate reflection and transmission is respectively light beam 411 and light beam 412; Folded light beam 411 is after 42 reflections of the 2 45 ° of filter plate, and outgoing beam 421 is through second lens 32 and 12 outputs of the second wire jumper head of 22 li of second sleeve pipes, output beam 101; Transmitted light beam 412 through 0 ° of filter plate 43 after, obtain output beam 431, light beam 431 is received by photodetector 51.
Please refer to Fig. 8, the utility model has also proposed i.e. fixing/variable optical attenuator or the light shutter device of second kind of optical fiber multiplexing device.This optical fiber multiplexing device comprises and is provided with ceramic insertion core, first sleeve pipe 21, first lens 31 and the one 45 ° of filter plate 41,0 ° of filter plate 43, photodetector 51, attenuator or catoptron of being arranged in order or the 71, the 2 45 ° of filter plate of prism 42, second lens 32, second sleeve pipe 22, the second wire jumper head 12, substrate 61 in the first wire jumper head 11, this first wire jumper head 11; First sleeve pipe 21 is used for the above-mentioned first wire jumper head 11 and above-mentioned first lens 31 of fixing; Distortion as first kind of OWDM structure; In this structure; Between said the one 45 ° of filter plate 41 and said the 2 45 ° of filter plate 42, be provided with fixing attenuator 71; Input light 100 by 11 inputs of the first wire jumper head; Behind first lens, 31 collimations of 21 li of first sleeve pipes, outgoing beam 311 arrives the one 45 ° of filter plate 41, and the light beam of the one 45 ° of filter plate reflection of warp and transmission is respectively light beam 411 and light beam 412.Folded light beam 411 is through behind the attenuator 71, and folded light beam 711 arrives the 2 45 ° of filter plate 42, and after the reflection, folded light beam 421 is through second lens 32 and 12 outputs of the second wire jumper head of 22 li of second porcelain bushings, output beam 101; Transmitted light beam 412 through 0 ° of filter plate 43 after, obtain output beam 431, light beam 431 is received by photodetector 51.Here, attenuator 71 can be fixed also and can move freely, and total is fixing/variable optical attenuator structure.In the time of also can attenuator 71 being replaced with catoptron, when catoptron is removed, can realize the light path path; When catoptron moved in the light path, the light path blocking-up promptly realized light switch function.
In above-mentioned two kinds of optical fiber multiplexing device structures: the material of (1) sleeve pipe is pottery, glass, metal or plastics, but is not limited to this; The material of substrate is pottery, glass, metal or plastics, but is not limited to this.(2) be equivalent to the tail optical fiber of collimating apparatus after the wire jumper head insert module screens of plug receptacle,, form collimator structure with the lens in the sleeve pipe.(3) the wire jumper head type of plug receptacle is FC, SC, LC, ST or MU, but is not limited to this.(4) filter plate 42 also can be a catoptron.
In addition, through embodiment to the crucial part of the utility model promptly import, output end structure does further description: the structure of input, output terminal can realize the structure of collimator function, and is but different with existing collimator structure.Existing a kind of optical fiber collimator structure, as shown in Figure 3.Combine by optical fiber head 4, glass bushing 5, lens 6.And can realize input, the output terminal of collimator function in the utility model, be to combine by the wire jumper head 1 in the optical communication network, porcelain bushing 2, lens 3.Fig. 5 A, 5B, 5C are respectively decomposition elevation, sectional view, the stereographic map that constitutes collimator structure in the utility model.After implementation was the wire jumper head 1 insert module screens in the optical communication network, the ceramic insertion core of wire jumper head inserted in the porcelain bushing, and put into porcelain bushing 2 lens 3 and constituted collimator structures.Fig. 6 A, 6B, 6C are respectively combination front elevation, sectional view, the stereographic map that constitutes collimator structure in the utility model.
When existing optical fiber collimator construction module is connected with the optical communication network, as shown in Figure 4.
Optical fiber head 4 constitutes collimating apparatus with glass bushing 5, lens 6.Need add wire jumper head 8 earlier when optical fiber head 4 is connected with the ambient light communication network, be connected with the wire jumper head 1 of optical communication network through ring flange 7 then.
And the optical fiber multiplexing device module in the utility model is when being connected with the optical communication network, and the wire jumper head 1 of optical communication network is in the direct insert module, middlely need not add the optical fiber head 4 in ring flange 7, wire jumper head 8 and the optical fiber collimator structure.
Just the porcelain bushing 2 among Fig. 5 A, lens 3 have replaced the ring flange 7 among Fig. 4, wire jumper head 8, optical fiber head 4, glass bushing 5, lens 6.
Therefore, the advantage of the utility model is: (1) need not make collimating apparatus separately, and manufacture craft is simple.(2) save the single fiber head, the wire jumper head in the optical communication network is equivalent to the single fiber head in the collimating apparatus, practices thrift cost.When (3) being connected with the optical communication network, saved ring flange, wire jumper is practiced thrift cost.(4) owing to use ring flange and wire jumper less, the insertion loss is lower.
The optical fiber multiplexing device of the utility model comprises and is not limited to deciliter light on WDM (wavelength division multiplexer), PD (photodetector), the energy, isolator, fixing/variable optical attenuator, photoswitch, amplifier, modulator, power monitoring etc.
Reflection the isolation (> 22dB of the OWDM structure of the utility model) be higher than existing WDM structure (with reference to figure 1, Fig. 2) reflection isolation (> 17dB), owing to reflected light goes out through 2 45 ° of filter plates reflections; Transmission isolation (> 40dB) be higher than existing WDM structure (with reference to figure 1, Fig. 2) transmission isolation (> 30dB), owing to transmitted light goes out through 0 ° of filter plate transmission after 45 ° of filter plate transmissions again.
The optical fiber multiplexing device of the utility model comprises and is not limited to which port input that which port output can be input/output port simultaneously also.
The optical fiber multiplexing device of the utility model comprises and is not limited to two, three port input and output, is applicable to the multiport structure more than three too.
The output port of the optical fiber multiplexing device of the utility model can be after the screens of wire jumper head insert module with porcelain bushing in the collimator structure that forms of lens also can receive light with photodetector.
The shell body standard of the optical fiber multiplexing device of the utility model comprises and is not limited to: SFP, SFF, XFP, 1x9,2x10, GBIC, XENPAK, X2,200/3000pin, XPAK.
The output port of this optical fiber multiplexing device can be after the screens of wire jumper head insert module with porcelain bushing in the collimator structure that forms of lens also can receive light with photodetector.
This optical fiber multiplexing device inside can have only optical element, also can have optical element to add the electronics part, also can add electronic circuit.
Above-listed preferred embodiment; Purpose, technical scheme and advantage to the utility model have been carried out further explain, it should be understood that the above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. optical fiber multiplexing device; It is characterized in that; Comprise and be provided with ceramic insertion core, first sleeve pipe, first lens and the one 45 ° of filter plate that is arranged in order, 0 ° of filter plate, photodetector, the 2 45 ° of filter plate, second lens, second sleeve pipe, the second wire jumper head, substrate in the first wire jumper head, this wire jumper head; This first sleeve pipe is used for above-mentioned first wire jumper head of fixing and above-mentioned first lens; The outgoing beam of input light after first collimated in first sleeve pipe by this wire jumper head input arrives the one 45 ° of filter plate; Through the one 45 ° of filter plate beam reflected again after the reflection of the 2 45 ° of filter plate, second lens and the second wire jumper head output of folded light beam in second sleeve pipe; Receive by photodetector from the light beam of the one 45 ° of filter plate transmission output beam after through 0 ° of filter plate.
2. optical fiber multiplexing device according to claim 1 is characterized in that, between said the one 45 ° of filter plate and said the 2 45 ° of filter plate, is provided with fixing attenuator.
3. optical fiber multiplexing device according to claim 1 is characterized in that, between said the one 45 ° of filter plate and said the 2 45 ° of filter plate, is provided with the attenuator that can move freely.
4. optical fiber multiplexing device according to claim 1 is characterized in that, between said the one 45 ° of filter plate and said the 2 45 ° of filter plate, is provided with catoptron, when catoptron is removed, can realize the light path path; When catoptron moved in the light path, the light path blocking-up promptly realized light switch function.
5. according to any described optical fiber multiplexing device among the claim 1-4, it is characterized in that the material of said sleeve pipe is pottery, glass, metal or plastics.
6. optical fiber multiplexing device according to claim 1 is characterized in that: the wire jumper head type of plug receptacle is FC, SC, LC, ST or MU.
7. optical fiber multiplexing device according to claim 1 is characterized in that: the material of substrate is pottery, glass, metal or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203730807U CN202404277U (en) | 2011-09-28 | 2011-09-28 | Optical fiber multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203730807U CN202404277U (en) | 2011-09-28 | 2011-09-28 | Optical fiber multiplexer |
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| Publication Number | Publication Date |
|---|---|
| CN202404277U true CN202404277U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203730807U Expired - Lifetime CN202404277U (en) | 2011-09-28 | 2011-09-28 | Optical fiber multiplexer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917523A (en) * | 2019-04-30 | 2019-06-21 | 武汉兴思为光电科技有限公司 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
-
2011
- 2011-09-28 CN CN2011203730807U patent/CN202404277U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917523A (en) * | 2019-04-30 | 2019-06-21 | 武汉兴思为光电科技有限公司 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160816 Address after: 350015, tea mountain road, Mawei hi tech park, Fujian, Fuzhou Patentee after: FUZHOU TENGJING OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: 350026, Fuzhou Province, Cangshan District, covering the town of Ping Shan Road, Jinshan District, Jinshan Industrial Zone, No. 869 Fu Fu Wan standard factory building on the first floor of the first floor, building 24 Patentee before: Foochow Bai Xun Photoelectric Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: 350015 five floors and three floors of building a and building B, building 1, Chashan Road, Mawei science and Technology Park, Fuzhou City, Fujian Province (within the free trade zone) Patentee after: Tengjing Technology Co., Ltd Address before: 350015, tea mountain road, Mawei hi tech park, Fujian, Fuzhou Patentee before: FUZHOU TENGJING OPTOELECTRONICS TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
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| CX01 | Expiry of patent term |