CN104158590A - Optical module and optical fiber communication system provided with same - Google Patents
Optical module and optical fiber communication system provided with same Download PDFInfo
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- CN104158590A CN104158590A CN201410382036.0A CN201410382036A CN104158590A CN 104158590 A CN104158590 A CN 104158590A CN 201410382036 A CN201410382036 A CN 201410382036A CN 104158590 A CN104158590 A CN 104158590A
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Abstract
The invention discloses an optical module and an optical fiber communication system provided with the same. The optical module comprises a shell, a light emission component and/or an optical receiving module, a wavelength division multiplexer, and a multimode optical fiber arranged outside the shell, wherein the light emission component and/or the optical receiving module and the wavelength division multiplexer are/is arranged in the shell; the light emission component sends out a single mode laser signal, the optical receiving module receives and processes the single mode laser signal, and the wavelength division multiplexer performs wave combination or wave division on the single mode laser signal; the single mode laser signal sent out by the light emission component is subjected to wave combination by the wavelength division multiplexer and then is transmitted by the multimode optical fiber; the single mode laser signal transmitted to the wavelength division multiplexer by the multimode optical fiber is subjected to wave division by the wavelength division multiplexer, reaches the optical receiving module and is processed by the optical receiving module. According to the application, the wavelength division multiplexer is added to the optical module, and the signal multimode optical fiber can be directly expanded through the optical module, so that the optical module meets the user demands and reduces the manufacturing and using cost.
Description
Technical field
The invention belongs to fiber optic communication field, be specifically related to a kind of optical module and there is the optical fiber telecommunications system of this optical module.
Background technology
Along with scientific and technical development, high-speed transfer signalling technique is widely used, optical interconnection can be in the much wide bandwidth than electricity transmission signal transmission, and use small size, low-power consumption optical module structure signal transmission system.In optical module, using optical fiber as the communication mode of transmission medium, compare with the telecommunication such as cable or microwave, optical fiber communication has the advantages such as transmission frequency bandwidth, signal cross-talk are weak, anti-electromagnetic interference, message capacity is large, transmission attenuation is little, long transmission distance.
Optical fiber by transmission mode in it number, be divided into monomode fiber and multimode fiber; Monomode fiber refers in operation wavelength, can only transmit the optical fiber of a communication mode; At present, in cable TV and optical communication, be most widely used optical fiber, it has advantages of long transmission distance.Multimode fiber refers to that operation wavelength take the optical fiber that its propagable pattern is a plurality of patterns, and because multimode fiber transmission mode can reach hundreds of, therefore multimode fiber is thicker than monomode fiber core diameter, numerical aperture is large, can be from the light source more luminous power that is coupled.
Accordingly, monomode fiber is compared with multimode fiber, has some problems:
First, because connector in network, coupler consumption are large, monomode fiber passive device is more expensive than multimode fiber passive device, and relatively accurate, franchise is little, therefore, single mode device operation not as multimode device convenient and reliable.Secondly, monomode fiber can only be used laser to make light source, and multimode fiber can be used light-emitting diode, vertical cavity surface emitting laser etc. to do light source; Therefore the light source cost of monomode fiber is more much higher than the light source cost of multimode fiber; Particularly, current network small scale, unit fiber lengths is used number of light sources many, may hundreds of in main line a light source for kilometer, and tens kilometers even each network of several kilometers respectively have independently light source, if network is used monomode fiber adapted laser, network in general cost can increase substantially.
Therefore,, along with scientific and technological development, people have proposed more and more higher requirement to the capacity of multimode fiber transmission data.For multimode fiber is carried out to dilatation, conventional way is to adopt multimode fiber array to carry out dilatation, increases so undoubtedly use cost.
Summary of the invention
The application's a embodiment provides a kind of optical module and has the Fiber Optical Communication System of this optical module, in described optical module, by increasing wavelength division multiplexer, single multimode fiber is carried out to dilatation, make this optical module inner light beam transmission stable, met user and multimode fiber has been carried out to the demand of dilatation.
Accordingly, the optical module that the application's a embodiment provides comprises:
Housing, be arranged at light emission component and/or optical fiber receive module, wavelength division multiplexer, the controller in described housing and be arranged at the multimode fiber outside described housing;
Described light emission component sends single-mode laser signal, described optical fiber receive module receives single-mode laser signal and received single-mode laser signal is processed, described controller is controlled the work of described light emission component and/or described optical fiber receive module, and single-mode laser signal is closed to ripple with described wavelength division multiplexer or partial wave is processed;
The single-mode laser signal that described light emission component sends closes ripple through wavelength division multiplexer and processes by being transmitted by described multimode fiber;
The single-mode laser signal that transfers to described wavelength division multiplexer via described multimode fiber arrives described optical fiber receive module and is processed by described optical receiver assembly after described wavelength division multiplexer partial wave.
In one embodiment, described optical module also comprises the dispersion compensation unit of the dispersion of single-mode laser signal in light path being carried out to electronic dispersion compensation; Described dispersion compensation unit is arranged between described wavelength division multiplexer and described multimode fiber.
In one embodiment, described optical module also comprises the dispersion compensation unit of the dispersion of single-mode laser signal in light path being carried out to electronic dispersion compensation; Described dispersion compensation unit is arranged between described optical fiber receive module device and described wavelength division multiplexer.
In one embodiment, described optical module also comprises monomode fiber, and described monomode fiber is arranged at described wavelength division multiplexer and described multimode receives between optical fiber.
In one embodiment, the junction of described monomode fiber and described multimode fiber has physical deflection so that the center of described monomode fiber and the center of described multimode fiber are offset mutually.
In one embodiment, described receiving unit is: photodiode array.
Accordingly, the Fiber Optical Communication System in the application's one execution mode, described Fiber Optical Communication System comprises at least two optical modules as above.
Compared with prior art; the optical module that the application provides and there is the Fiber Optical Communication System of this optical module; by increase wavelength division multiplexer in described optical module; can directly to single multimode fiber, carry out dilatation by described optical module; this optical module and this fibre system, when having met user's request, are saved and are manufactured and use cost; In addition, the optical transport network that carried out signal transmission for former employing multimode fiber, the application's optical module and optical fiber telecommunications system can be good at utilizing the multimode fiber optical transport network having laid, thereby in the prerequisite current network not being changed, be issued to the object that improves light transmission capacity, make whole optical fiber telecommunications system have advantages of that transmission capacity is large, cost is low.
Accompanying drawing explanation
Fig. 1 is the principle schematic of optical module in the application's the first execution mode;
Fig. 2 is the principle schematic of optical module in the application's the second execution mode;
Fig. 3 A, 3B are the principle schematic of optical module in the application's the 3rd execution mode;
Fig. 4 is the structural representation of optical fiber telecommunications system in the application's one execution mode.
Embodiment
Below with reference to embodiment shown in the drawings, the application is described in detail.But these execution modes do not limit the application, the conversion in the structure that those of ordinary skill in the art makes according to these execution modes, method or function is all included in the application's protection range.
Accordingly, shown in Fig. 1, Fig. 4, Fig. 1 is the principle schematic of optical module in the application's the first execution mode; Fig. 4 is the structural representation of optical fiber telecommunications system in the application's one execution mode.Optical fiber telecommunications system comprises at least two optical modules 100, connects, to realize the light beam transmission between optical module 100 between optical module 100 by optical fiber.General, described optical fiber can be divided into monomode fiber and multimode fiber.For convenience, in the following description, the direction of transfer according to light beam in light path, is divided into single mode launching fiber by monomode fiber to the application and single mode receives optical fiber; Multimode fiber is divided into multimode launching fiber and multimode reception optical fiber, and its concrete structure will be described in detail in following content.
Further, present embodiment is for directly multimode fiber is carried out to dilatation in optical module 100, therefore connect by single multimode fiber 150 between two optical modules 100.Multimode fiber 150 allows that the light of different mode transmits on an optical fiber, and because the core diameter of multimode fiber 150 is larger, therefore can use comparatively cheap coupler and electric wire connecting junction, the core diameter of multimode fiber 150 is 50 μ m to 100 μ m.
Accordingly, optical module 100 in the application's the first execution mode comprises housing (specifically not illustrating), main frame 200, is arranged at circuit board (specifically not illustrating), connector 110, controller 120, wavelength division multiplexer 160, light emission component 130 and optical fiber receive module 140 in described housing; Multimode fiber 150 is arranged at outside housing, comprising: multimode launching fiber 151 and multimode receive optical fiber 153.
Further, light emission component 130 comprises: be arranged at the optical transmitting set 131 in described housing, the laser driver 133 of driving optical transmitting set 131; Optical transmitting set 131 sends single-mode laser signal after converting electrical signals to single-mode laser signal, and laser driver 133 is for driving optical transmitting set 131; Accordingly, laser driver 133 drives optical transmitting set 131 to send single-mode laser signal, and described single-mode laser signal closes ripple through wavelength division multiplexer 160 and processes by being transmitted by multimode launching fiber 151; And be delivered to another one optical module 100.Optical fiber receive module 140 comprises: be arranged at amplifier (143,145), optical receiver 141 in described housing; Via multimode, receive the single-mode laser signal that optical fiber 153 transfers to wavelength division multiplexer 160, after wavelength division multiplexer 160 partial waves, arrive optical receiver 141, and by optical receiver 141, this single-mode laser signal is converted to the signal of telecommunication; Amplifier (143,145) for the ultra-weak electronic signal current conversion after optical receiver 141 conversions is become to have the signal voltage of enough amplitudes to export, described amplifier comprises TIA trans-impedance amplifier 143, English name: trans-impedance amplifier, and limiting amplifier 145, TIA trans-impedance amplifier 143 is exported for converting the electrical signal to analog signal; Limiting amplifier 145 is exported for the different signal of amplitude of trans-impedance amplifier output being processed into the digital signal of constant amplitude.
Accordingly, controller 120 is for controlling laser driver 133 and limiting amplifier 145.
Wavelength division multiplexer 160, English name Wavelength Division Multiplexing, abbreviation WDM, at the transmitting terminal of optical module 100, merge together the optical carrier of two or more different wave lengths is multiplexing, and be coupled in same optical fiber of optical link and transmit; At receiving terminal, through demultiplexing, the light carrier of various wavelength is separated, then light carrier is for further processing to recover original signal, it can make full use of the low-loss band of multimode fiber 150, increase the transmission capacity of multimode fiber 150, the physical limits that makes single multimode fiber 150 transmit information factors two to several times, and then the multimode fiber 150 in optical module 100 is carried out to dilatation, guarantees that transmission bandwidth is sufficient.
The quantity of wavelength division multiplexer 160 is two, is respectively first wave division multiplexer 161, and Second Wave division multiplexer 163; First wave division multiplexer 161 is arranged between light emission component 130 and multimode launching fiber 151, so that the optical carrier of two or more different wave lengths that comprise in described single-mode laser signal is merged together at transmitting terminal, and be coupled in same multimode launching fiber 151 of optical link and transmit; Second Wave division multiplexer 163 is arranged at optical fiber receive module 140 and multimode receives between optical fiber 153, to receive the single-mode laser signal that receives the light carrier that includes various wavelength of optical fiber 153 transmission by multimode, afterwards that the single-mode laser signal of the light carrier of described various wavelength is separated, and then do further processing and after original signal, be delivered on optical receiver 140 recovering.
It should be noted that, the quantity of wavelength division multiplexer 160 also can be 1, corresponding, integrated at least two pairs of ports on single wavelength division multiplexer 160, and a pair of port is corresponding light emission component 130 and multimode launching fiber 151 respectively; The corresponding optical fiber receive module 140 of a pair of difference and multimode receive optical fiber 153; At this, be not described in detail.
In one execution mode, optical transmitting set 131 is wavelength-division single-mode laser array.These optical transmitting set 131 drive circuits are relatively simple, and cost of manufacture is low, can extensively by people, be applied.
In one execution mode, optical receiver 141 is photodiode array; Same, these optical receiver 141 drive circuits are relatively simple, and cost of manufacture is low, can extensively by people, be applied.
Accordingly, shown in Fig. 2, introduce the optical module in the second execution mode of the application.
Accordingly, the second execution mode of the application is improved on the basis of the first execution mode, the difference of described the second execution mode and described the first execution mode is: in described the second execution mode, also comprise a monomode fiber 170, monomode fiber 170 comprises: single mode launching fiber 171, and single mode receives optical fiber 173; Single mode launching fiber 171 is arranged between first wave division multiplexer 161 and multimode launching fiber 151, and single mode receives optical fiber 173 and is arranged between Second Wave division multiplexer 163 and multimode reception optical fiber 153.
Accordingly, the junction of single mode launching fiber 171 and multimode launching fiber 151, and the junction of single mode reception optical fiber 173 and multimode reception optical fiber 153 all has physical deflection, so that single mode launching fiber 171 center and multimode launching fiber 151 center, single mode reception optical fiber 173 center and multimode receive optical fiber 173 center, be offset mutually, and then make the light transmitting in optical module 100 there is better transmission range.
Further, in order to overcome in optical module 100, increase after wavelength division multiplexer 160, the single-mode laser signal transmitting produces dispersion phenomenon, to obtain better transmission range.
Accordingly, shown in Fig. 3 A, 3B, introduce the optical module in the application's the 3rd execution mode.
Accordingly, the application's the 3rd execution mode is improved on the basis of the first execution mode, and the difference of described the 3rd execution mode and described the first execution mode is: in described the 3rd execution mode, optical module 100 also comprises the dispersion compensation unit 180 of the dispersion of single-mode laser signal in light path being carried out to electronic dispersion compensation; Accordingly, dispersion compensation unit 180 is arranged at Second Wave division multiplexer 163 and multimode receives between optical fiber 163, or is arranged between optical receiver 140 and Second Wave division multiplexer 163.Wherein, single-mode laser signal receives optical fiber 153 via multimode, passes through successively afterwards dispersion compensation unit 180, and Second Wave division multiplexer 163, is finally passed to optical receiver 140; Or described single-mode laser signal receives optical fiber 153 via multimode, passes through successively afterwards Second Wave division multiplexer 163, dispersion compensation unit 180, is finally passed to optical receiver 140.
It should be noted that, the application also can increase dispersion compensation unit 180 on the basis of the second execution mode, to obtain better transmission range, at this, is not described in detail.
In addition, the optical fiber telecommunications system shown in Fig. 4 comprises the optical module of two the first execution modes, and in actual application, comprises the concrete structure of optical module in optical fiber telecommunications system, and quantity is all not specifically limited; That is: can, by combination in any between the optical module in first, second, third execution mode, at this, not be described in detail.
Compared with prior art, the optical module that the application provides and be provided with the optical fiber telecommunications system of module, by increase wavelength division multiplexer in described optical module, can directly to single multimode fiber, carry out dilatation by described optical module, this optical module and this fibre system, when having met user's request, are saved and are manufactured and use cost.In addition, the optical transport network that carried out signal transmission for former employing multimode fiber, the application's optical module and optical fiber telecommunications system can be good at utilizing the multimode fiber optical transport network having laid, thereby in the prerequisite current network not being changed, be issued to the object that improves light transmission capacity, make whole optical fiber telecommunications system have advantages of that transmission capacity is large, cost is low.
Be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technical scheme in each execution mode also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Listed a series of detailed description is above only illustrating for the application's feasibility execution mode; they are not in order to limit the application's protection range, within the equivalent execution mode that all the application's of disengaging skill spirit is done or change all should be included in the application's protection range.
Claims (7)
1. an optical module, is characterized in that, described optical module comprises housing, is arranged at light emission component and/or optical fiber receive module, wavelength division multiplexer, the controller in described housing and is arranged at the multimode fiber outside described housing;
Described light emission component sends single-mode laser signal, described optical fiber receive module receives single-mode laser signal and received single-mode laser signal is processed, described controller is controlled the work of described light emission component and/or described optical fiber receive module, and single-mode laser signal is closed to ripple with described wavelength division multiplexer or partial wave is processed;
The single-mode laser signal that described light emission component sends closes ripple through wavelength division multiplexer and processes by being transmitted by described multimode fiber;
The single-mode laser signal that transfers to described wavelength division multiplexer via described multimode fiber arrives described optical fiber receive module and is processed by described optical receiver assembly after described wavelength division multiplexer partial wave.
2. optical module according to claim 1, is characterized in that: described optical module also comprises the dispersion compensation unit of the dispersion of single-mode laser signal in light path being carried out to electronic dispersion compensation; Described dispersion compensation unit is arranged between described wavelength division multiplexer and described multimode fiber.
3. optical module according to claim 1, is characterized in that: described optical module also comprises the dispersion compensation unit of the dispersion of single-mode laser signal in light path being carried out to electronic dispersion compensation; Described dispersion compensation unit is arranged between described optical fiber receive module and described wavelength division multiplexer.
4. optical module according to claim 1, is characterized in that: described optical module also comprises monomode fiber, and described monomode fiber is arranged at described wavelength division multiplexer and described multimode receives between optical fiber.
5. optical module according to claim 4, is characterized in that: the junction of described monomode fiber and described multimode fiber has physical deflection so that the center of described monomode fiber and the center of described multimode fiber are offset mutually.
6. optical module according to claim 1, is characterized in that: described optical fiber receive module is: photodiode array.
7. an optical fiber telecommunications system, is characterized in that, comprises at least two optical modules as described in claim 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382036.0A CN104158590A (en) | 2014-08-06 | 2014-08-06 | Optical module and optical fiber communication system provided with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382036.0A CN104158590A (en) | 2014-08-06 | 2014-08-06 | Optical module and optical fiber communication system provided with same |
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| CN104158590A true CN104158590A (en) | 2014-11-19 |
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| CN201410382036.0A Pending CN104158590A (en) | 2014-08-06 | 2014-08-06 | Optical module and optical fiber communication system provided with same |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727931A (en) * | 2004-07-28 | 2006-02-01 | 京瓷株式会社 | Optical fiber connected body with mutually coaxial and inclined cores, optical connector |
| CN101034181A (en) * | 2006-03-10 | 2007-09-12 | 中兴通讯股份有限公司 | Regulation method and device for wavelength-division multiplex system residual chromatic dispersion compensation |
| CN201156096Y (en) * | 2007-12-14 | 2008-11-26 | 武汉电信器件有限公司 | Plastic encapsulated coaxial optical module having pin |
| CN101617254A (en) * | 2006-11-29 | 2009-12-30 | 卡斯卡德技术有限公司 | Multi mode fibre perturber |
| CN201429715Y (en) * | 2009-07-09 | 2010-03-24 | 飞康技术(深圳)有限公司 | Single fiber bidirectional dual-port component |
| CN101835064A (en) * | 2009-03-10 | 2010-09-15 | 中国电信股份有限公司 | Monomode and multimode fiber mixed Ethernet passive optical network system |
| US20120063719A1 (en) * | 2010-09-10 | 2012-03-15 | Bogdan Chomycz | DWDM and CWDM Communication System over Multimode Fiber |
| CN203590231U (en) * | 2013-05-30 | 2014-05-07 | 武汉电信器件有限公司 | CXP optical transmit-receive module |
-
2014
- 2014-08-06 CN CN201410382036.0A patent/CN104158590A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727931A (en) * | 2004-07-28 | 2006-02-01 | 京瓷株式会社 | Optical fiber connected body with mutually coaxial and inclined cores, optical connector |
| CN101034181A (en) * | 2006-03-10 | 2007-09-12 | 中兴通讯股份有限公司 | Regulation method and device for wavelength-division multiplex system residual chromatic dispersion compensation |
| CN101617254A (en) * | 2006-11-29 | 2009-12-30 | 卡斯卡德技术有限公司 | Multi mode fibre perturber |
| CN201156096Y (en) * | 2007-12-14 | 2008-11-26 | 武汉电信器件有限公司 | Plastic encapsulated coaxial optical module having pin |
| CN101835064A (en) * | 2009-03-10 | 2010-09-15 | 中国电信股份有限公司 | Monomode and multimode fiber mixed Ethernet passive optical network system |
| CN201429715Y (en) * | 2009-07-09 | 2010-03-24 | 飞康技术(深圳)有限公司 | Single fiber bidirectional dual-port component |
| US20120063719A1 (en) * | 2010-09-10 | 2012-03-15 | Bogdan Chomycz | DWDM and CWDM Communication System over Multimode Fiber |
| CN203590231U (en) * | 2013-05-30 | 2014-05-07 | 武汉电信器件有限公司 | CXP optical transmit-receive module |
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Application publication date: 20141119 |