CN106788775B - Optical module - Google Patents
Optical module Download PDFInfo
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- CN106788775B CN106788775B CN201611187871.4A CN201611187871A CN106788775B CN 106788775 B CN106788775 B CN 106788775B CN 201611187871 A CN201611187871 A CN 201611187871A CN 106788775 B CN106788775 B CN 106788775B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
Abstract
The present invention provides a kind of optical module, comprising: current mirror unit, signal compare generation circuit unit and light receiving unit；Generation circuit unit, light receiving unit connect current mirror unit compared with signal respectively；Signal compares generation circuit unit and connect with light receiving unit；High-speed burst optical signal is converted high-speed burst photo-signal by light receiving unit, generate continuous current signal, determine signal compare generation circuit unit generation comparative level signal be high level signal, low level signal when, control continuous current signal is not added to, in the high-speed that is added to burst photo-signal respectively, the continuous photo-signal of high-speed is generated, the continuous photo-signal of high-speed is converted into high-speed continuous voltage signal.A kind of optical module of high-speed burst optical signal that can handle on optical-fiber network is provided, the continuous photo-signal of obtained high-speed is converted into high-speed continuous voltage signal, high-speed continuous voltage signal is sent to optical line terminal and uses.
Description
Technical field
The present invention relates to technical field of optical fiber communication more particularly to a kind of optical modules.
Background technique
Optical-fiber network is the infrastructure of entire communication network, the rapid development and answer that photoelectron Science and Technology is studied
With greatly having driven the development of information communication industry.As user is to the high band width service demand such as high definition IPTV, video monitoring
Continuous growth, existing technology is difficult to meet the needs of business long-run development, especially in fiber to the floor and Fiber-To-The-Node
Scene.Optical access network bandwidth, service supporting capacity and access node apparatus function and in terms of all suffer from new liter
Grade demand.Access net needs by 10Gbps to promote single channel bandwidth to 25Gbps or higher at present.
In the prior art, the optical device for being used for transmission net has tended to be mature, can use avalanche photodide
(Avalanche Photo Diode, abbreviation APD) goes to receive optical signal, gives optical signal transmission to trans-impedance amplifier (Trans-
Impedance amplifier, abbreviation TIA), for example, the TIA of 25G to TIA convert optical signals to after voltage signal to
Optical line terminal in optical line terminal (Optical LineTerminal, abbreviation OLT) system carry out using.
However in the prior art, TIA is the chip of continuous mode, can only handle the continuous light letter of high-speed on optical-fiber network
Number, it can not be received and be handled hence for the high-speed burst optical signal on optical-fiber network.
Summary of the invention
The present invention provides a kind of optical module, and can only handle high-speed on optical-fiber network solving TIA in the prior art connects
Continuous optical signal, the problem of can not be received and be handled hence for the high-speed burst optical signal on optical-fiber network.
An aspect of of the present present invention provides a kind of optical module, comprising:
Current mirror unit, signal compare generation circuit unit, light receiving unit；
Generation circuit unit, the light receiving unit connect the current mirror unit compared with the signal respectively；Institute
It states signal and compares generation circuit unit and connect with the light receiving unit；
The current mirror unit, for obtaining the burst photo-signal of the high-speed on the light receiving unit, and will
The high-speed burst photo-signal is conveyed to the signal and compares generation circuit unit；
The signal compares generation circuit unit, for generating more electric according to high-speed burst photo-signal
The comparative level signal is conveyed to the light receiving unit by ordinary mail number, the comparative level signal be high level signal with
Low level signal is constituted；
The light receiving unit, for obtaining the high-speed burst optical signal on optical-fiber network and generating continuous current signal,
High-speed burst photo-signal is converted by the high-speed burst optical signal, and is determining the comparative level signal for height
When level signal, the continuous current Signal averaging is controlled less than in high-speed burst photo-signal, states ratio in determination
Compared with level signal be low level signal when, control the continuous current Signal averaging to the high-speed burst photo-signal
On, to generate the continuous photo-signal of high-speed, and it is continuously electric that the continuous photo-signal of the high-speed is converted to high-speed
Press signal.The solution have the advantages that: generation circuit unit and light-receiving are compared by current mirror unit, signal by providing
The optical module that unit is constituted, generation circuit unit, light receiving unit connect current mirror unit compared with signal respectively；Signal ratio
It is connect compared with generation circuit unit with light receiving unit；Current mirror unit, for obtaining the burst of the high-speed on light receiving unit
Photo-signal, and high-speed burst photo-signal is conveyed to signal and compares generation circuit unit；Signal compares generation electricity
Road unit, for generating comparative level signal, comparative level signal being conveyed to light and is connect according to high-speed burst photo-signal
Unit is received, comparative level signal is that high level signal and low level signal are constituted；Light receiving unit, for obtaining on optical-fiber network
High-speed burst optical signal simultaneously generates continuous current signal, converts high-speed burst photoelectric current letter for high-speed burst optical signal
Number, and when determining comparative level signal is high level signal, control continuous current Signal averaging is less than high-speed burst photoelectricity
It flows on signal, when determining the comparative level signal is low level signal, control continuous current Signal averaging is prominent to high-speed
On glow current signal, to generate the continuous photo-signal of high-speed, and the continuous photo-signal of high-speed is converted into high speed
Rate continuous voltage signal.It, can be with to providing a kind of optical module of high-speed burst optical signal that can handle on optical-fiber network
Letter after converting high-speed burst photo-signal for high-speed burst optical signal, according to high-speed burst photo-signal
Number intensity determines when on a kind of continuous current Signal averaging that will be generated to high-speed burst photo-signal, and then obtains
Then the continuous photo-signal of high-speed generates high-speed continuous voltage signal according to high-speed burst photo-signal, into
And by high-speed continuous voltage signal send to optical line terminal carry out using.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the optical module that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of optical module provided by Embodiment 2 of the present invention；
Fig. 3 is the electrical block diagram of optical module provided by Embodiment 2 of the present invention；
Fig. 4 is the schematic diagram of the high-speed burst photo-signal generated in optical module provided by Embodiment 2 of the present invention；
Fig. 5 is the schematic diagram of the comparative level signal generated in optical module provided by Embodiment 2 of the present invention；
Fig. 6 is the schematic diagram of the continuous current signal generated in optical module provided by Embodiment 2 of the present invention；
Fig. 7 is the schematic diagram of the high-speed continuous voltage signal generated in optical module provided by Embodiment 2 of the present invention；
Fig. 8 is the limited range enlargement that generates treated high-speed continuous voltage in optical module provided by Embodiment 2 of the present invention
The schematic diagram of signal.
Appended drawing reference:
| 1- current mirror unit | 2- signal compares generation circuit unit |
| 3- light receiving unit | 4- photodetector |
| 5- trans-impedance amplifier | 6- control switch |
| 7- code generator | 8- booster circuit |
| 9- mirror current source | 10- limiting amplifier |
| 11- ground resistance |
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram for the optical module that the embodiment of the present invention one provides, as shown in Figure 1, provided in this embodiment
Optical module, comprising:
Current mirror unit 1, signal compare generation circuit unit 2 (Compare), light receiving unit 3；
Generation circuit unit 2, light receiving unit 3 connect current mirror unit 1 compared with signal respectively；Signal compares generation
Circuit unit 2 is connect with light receiving unit 3；
Current mirror unit 1, for obtaining the burst photo-signal of the high-speed on light receiving unit 3, and by high-speed
Burst photo-signal is conveyed to signal and compares generation circuit unit 2；
Signal compares generation circuit unit 2, for generating comparative level signal according to high-speed burst photo-signal,
Comparative level signal is conveyed to light receiving unit 3, comparative level signal is that high level signal and low level signal are constituted；
Light receiving unit 3 will be high for obtaining the high-speed burst optical signal on optical-fiber network and generating continuous current signal
Rate burst optical signal is converted into high-speed burst photo-signal, and when determining comparative level signal is high level signal,
Continuous current Signal averaging is controlled less than in high-speed burst photo-signal, is determining that comparative level signal is low level signal
When, control continuous current Signal averaging to high-speed happens suddenly in photo-signal, to generate the continuous photo-signal of high-speed, and
The continuous photo-signal of high-speed is converted into high-speed continuous voltage signal.
In the present embodiment, specifically, optical module compares generation circuit unit 2 by current mirror unit 1, signal and light connects
It receives unit 3 to constitute, by current mirror unit 1, generation circuit unit 2, light receiving unit 3 are connected compared with signal respectively, and will
Signal compares generation circuit unit 2 and connect with light receiving unit 3.
The available high-speed on light receiving unit 3 of current mirror unit 1 happens suddenly photo-signal, and by high-speed
Burst photo-signal is conveyed to signal and compares generation circuit unit 2.Then, signal compares generation circuit unit 2 according to electric current
The high-speed that mirror image unit 1 transmits happens suddenly photo-signal, comparative level signal is generated, by high level in the comparative level signal
Signal and low level signal are constituted, and comparative level signal is then conveyed to light receiving unit 3.
Then, due to the available high-speed burst optical signal on optical-fiber network of light receiving unit 3, light receiving unit 3
High-speed burst photo-signal is converted by the high-speed burst optical signal on optical-fiber network, meanwhile, light receiving unit 3 can give birth to
At continuous current signal；Then light receiving unit 3 goes to judge that signal compares the comparative level signal that generation circuit unit 2 transmits and is
High level signal or low level signal, light receiving unit 3 is when determining comparative level signal is high level signal, by generation
Continuous current Signal averaging happens suddenly in photo-signal less than high-speed, when determining comparative level signal is low level signal,
The continuous current Signal averaging of generation to high-speed is happened suddenly in photo-signal, so that it may to obtain a kind of high-speed company
Continuous photo-signal；Then, it is continuously electric to be converted to high-speed again by light receiving unit 3 for the continuous photo-signal of the high-speed of generation
Press signal.In turn, light receiving unit 3 by the high-speed continuous voltage signal of generation send to optical line terminal carry out using.
The present embodiment compares 3 structure of generation circuit unit 2 and light receiving unit by current mirror unit 1, signal by providing
At optical module, current mirror unit 1 respectively compared with signal generation circuit unit 2, light receiving unit 3 connect；Signal compares
Generation circuit unit 2 is connect with light receiving unit 3；Current mirror unit 1, it is prominent for obtaining the high-speed on light receiving unit 3
Glow current signal, and high-speed burst photo-signal is conveyed to signal and compares generation circuit unit 2；Signal compares generation
Circuit unit 2, for generating comparative level signal, comparative level signal being conveyed to according to high-speed burst photo-signal
Light receiving unit 3, comparative level signal are that high level signal and low level signal are constituted；Light receiving unit 3, for obtaining light net
High-speed burst optical signal on network simultaneously generates continuous current signal, converts high-speed burst light for high-speed burst optical signal
Current signal, and when determining comparative level signal is high level signal, control continuous current Signal averaging is prominent less than high-speed
On glow current signal, when determining comparative level signal is low level signal, control continuous current Signal averaging to high-speed
In the photo-signal that happens suddenly, to generate the continuous photo-signal of high-speed, and the continuous photo-signal of high-speed is converted into height
Rate continuous voltage signal.It, can to provide a kind of optical module of high-speed burst optical signal that can handle on optical-fiber network
After converting high-speed burst photo-signal for high-speed burst optical signal, according to high-speed burst photo-signal
Signal strength determines when on a kind of continuous current Signal averaging that will be generated to high-speed burst photo-signal, and then obtains
To the continuous photo-signal of high-speed, high-speed continuous voltage signal is then generated according to high-speed burst photo-signal,
And then by high-speed continuous voltage signal send to optical line terminal carry out using.
Fig. 2 is the structural schematic diagram of optical module provided by Embodiment 2 of the present invention, and Fig. 3 is provided by Embodiment 2 of the present invention
The electrical block diagram of optical module, on the basis of example 1, as shown in Figures 2 and 3, optical mode provided in this embodiment
Block, light receiving unit 3, comprising:
Photodetector 4, trans-impedance amplifier 5TIA, control switch 6 and code generator 7；
Photodetector 4 is connect with trans-impedance amplifier 5, and one end of control switch 6 is connected to photodetector 4 and puts with across resistance
Between big device 5, the other end of control switch 6 is connect with code generator 7；Photodetector 4 is connect with current mirror unit 1,
The generation circuit unit 2 compared with signal of control switch 6 connects；
Photodetector 4 converts high-speed burst optical signal for obtaining the high-speed burst optical signal on optical-fiber network
For high-speed burst photo-signal；
Control switch 6, for according to signal compare generation circuit unit 2 conveying comparative level signal, turn off and
Conducting, the continuous current Signal averaging that code generator 7 is conveyed to high-speed happen suddenly in photo-signal, generate high-speed
Continuous photo-signal；
Trans-impedance amplifier 5, it is continuous for obtaining the high-speed on the route between photodetector 4 and trans-impedance amplifier 5
The continuous photo-signal of high-speed is converted to high-speed continuous voltage signal by photo-signal.
Control switch 6, is specifically used for:
When determining comparative level signal is high level signal, turn off, so that continuous current Signal averaging is less than height
Rate happens suddenly in photo-signal；It when determining comparative level signal is low level signal, is connected, so that continuous current is believed
In the high-speed that number is added to burst photo-signal, to generate the continuous photo-signal of high-speed.
Signal compares generation circuit unit 2, is specifically used for:
Obtain reference voltage threshold；
It receives the high-speed that current mirror unit 1 conveys to happen suddenly photo-signal, and high-speed is happened suddenly photo-signal
Be converted to comparison voltage signal；
Determine whether comparison voltage signal is more than or equal to reference voltage threshold；
When determining that comparison voltage signal is more than or equal to reference voltage threshold, high level signal is exported, it is more electric in determination
When signal being pressed to be less than reference voltage threshold, low level signal is exported, generates comparative level signal.
Current mirror unit 1, comprising:
Booster circuit 8 (Avalanche Photo Diode DC-DC, abbreviation APD DC-DC) and mirror current source 9
(Current Mirror)；
Booster circuit 8 is connect with mirror current source 9, mirror current source 9 generation circuit unit 2, light compared with signal respectively
Receiving unit 3 connects；
Booster circuit 8, for providing working inverse voltage to light receiving unit 3 by mirror current source 9；
Mirror current source 9, the high-speed burst photo-signal on mirror image light receiving unit 3, and high-speed is dashed forward
Glow current signal is conveyed to signal and compares generation circuit unit 2.
Optical module provided in this embodiment, further includes: limiting amplifier 10 (Limiting Amplifier, abbreviation LIA)；
Limiting amplifier 10 is connect with light receiving unit 3；
Limiting amplifier 10, it is continuous to high-speed for receiving the high-speed continuous voltage signal of the conveying of light receiving unit 3
Voltage signal carries out limited range enlargement processing, and by limited range enlargement, treated that high-speed continuous voltage signal is conveyed to optical line terminal
Carry out using.
In the present embodiment, specifically, light receiving unit 3 is by photodetector 4, trans-impedance amplifier 5,6 and of control switch
Code generator 7 is constituted, and photodetector 4 is connect with trans-impedance amplifier 5；One end of control switch 6 is connected to photoelectricity to visit
It surveys between device 4 and trans-impedance amplifier 5, the other end of control switch 6 is connect with code generator 7；And by photodetector 4 with
Current mirror unit 1 connects, and the generation circuit unit 2 compared with signal of control switch 6 connects.
Also, current mirror unit 1 is made of booster circuit 8 and mirror current source 9, by booster circuit 8 and image current
Source 9 connects, and the generation circuit unit 2 compared with signal respectively by mirror current source 9, by mirror current source 9 and light-receiving list
The connection of photodetector 4 in member 3.Also, one is provided between generation circuit unit 2 compared with signal in mirror current source 9
A ground resistance 11.
Wherein, photodetector 4 can use avalanche photodide APD.
Meanwhile a limiting amplifier 10 can be provided, by amplifying in limiting amplifier 10 and light receiving unit 3 across resistance
The output end of device 5 connects.
Booster circuit 8 can provide working inverse voltage to light receiving unit 3 by mirror current source 9.Photodetector
High-speed burst optical signal is converted high-speed burst photoelectric current by high-speed burst optical signal on 4 available optical-fiber networks
Signal, Fig. 4 are the schematic diagram of the high-speed burst photo-signal generated in optical module provided by Embodiment 2 of the present invention, are such as schemed
Shown in 4, high-speed burst photo-signal is the paroxysmal signal of high-speed.To which mirror current source 9 is available to arrive light
High-speed burst photo-signal on photodetector 4 on receiving unit 3, mirror current source 9 can be prominent with mirror image high-speed
High-speed burst photo-signal is conveyed to signal and compares generation circuit unit by glow current signal, then, mirror current source 9
2。
Then, signal compares available to the one reference voltage threshold Vref of generation circuit unit 2；Signal compares generation
Circuit unit 2 receives the high-speed burst photo-signal of the conveying of the mirror current source 9 in current mirror unit 1, then will
High-speed burst photo-signal is converted to comparison voltage signal V；Then, signal compares generation circuit unit 2 for comparison voltage
Signal V is compared with reference voltage threshold Vref, goes to determine whether comparison voltage signal V is more than or equal to reference voltage threshold
Vref；If it is determined that i.e. V >=Vref, the signal compares generation when comparison voltage signal V is more than or equal to reference voltage threshold Vref
Circuit unit 2 can export high level signal, at this point, signal, which compares generation circuit unit 2, reports " having light "；If it is determined that more electric
When signal V being pressed to be less than reference voltage threshold Vref, i.e. V < Vref, which, which compares generation circuit unit 2, can export low level
Signal, at this point, signal, which compares generation circuit unit 2, reports " unglazed ".In turn, signal compares the generation of generation circuit unit 2 and compares
Level signal, the comparative level signal are SD signal, and Fig. 5 is electric for the comparison generated in optical module provided by Embodiment 2 of the present invention
The schematic diagram of ordinary mail number, as shown in figure 5, to which signal compares generation circuit unit 2 and comparative level signal is conveyed to light-receiving
Control switch 6 in unit 3.
Then, control switch 6 in light receiving unit 3 can receive the comparison that signal compares the conveying of generation circuit unit 2
Level signal, then, it is electric can to compare the comparison that generation circuit unit 2 conveys according to signal for control switch 6 in light receiving unit 3
Ordinary mail number is turned off and is connected, thus the continuous current Signal averaging that code generator 7 is conveyed to high-speed happen suddenly photoelectricity
It flows on signal, goes to generate the continuous photo-signal of high-speed.Specifically, code generator 7 can produce continuous current signal,
The code generator 7 can be Iddle code generator (Iddle Generator), and Fig. 6 is provided by Embodiment 2 of the present invention
The schematic diagram of the continuous current signal generated in optical module, as shown in fig. 6, the Iddle code generator 7 can produce continuous electricity
Signal is flowed, continuous current signal is alternation " 1010 " signal, which is continuous mode.Due to control switch 6
The other end connect with code current generator, one end of control switch 6 be connected to photodetector 4 and trans-impedance amplifier 5 it
Between；When control switch 6 determines that the comparative level signal received is high level signal, it is determined as " having light " at this time, control is opened
It closes 6 to turn off, so that control switch 6 is not turned on, so that the continuous current signal of code current generator transmission cannot transmit
To between photodetector 4 and trans-impedance amplifier 5, in turn, continuous current Signal averaging is less than high-speed burst photo-signal
On, the signal being input in trans-impedance amplifier 5 is the high-speed burst photo-signal that photodetector 4 exports.It is opened in control
When pass 6 determines that the comparative level signals received are low level signal, it is determined as at this time " unglazed ", control switch 6 is connected,
To which the continuous current signal of code current generator transmission can be transmitted between photodetector 4 and trans-impedance amplifier 5, into
And continuous current signal can be added in high-speed burst photo-signal, be input to the signal in trans-impedance amplifier 5 to connect
Continuous current signal be added to high-speed burst photo-signal signal.To pass through above procedure, continuous current signal and height
Rate happens suddenly after photo-signal superposition, and the photo-signal of the burst of high-speed passes through the mode for interleaving Iddle, becomes
The photo-signal of class continuous mode.
Then, the continuous photo-signal of high-speed is input in trans-impedance amplifier 5, and then trans-impedance amplifier 5 gets light
The continuous photo-signal of the high-speed on route between electric explorer 4 and trans-impedance amplifier 5, then trans-impedance amplifier 5 will be high
The continuous photo-signal of rate is converted to high-speed continuous voltage signal, and Fig. 7 is in optical module provided by Embodiment 2 of the present invention
The schematic diagram of the high-speed continuous voltage signal of generation, as shown in Figure 7 in high-speed continuous voltage signal.
Finally, high-speed continuous voltage signal is conveyed to limiting amplifier 10 by trans-impedance amplifier 5, thus limiting amplifier
10 receive the high-speed continuous voltage signal that the trans-impedance amplifier 5 in light receiving unit 3 conveys, then, limiting amplifier 10
Limited range enlargement processing is carried out to high-speed continuous voltage signal, is generated in Fig. 8 optical module provided by Embodiment 2 of the present invention
The schematic diagram of limited range enlargement treated high-speed continuous voltage signal obtains limited range enlargement as shown in Figure 8 treated and is high
Rate continuous voltage signal, then treated that high-speed continuous voltage signal is conveyed to light by limited range enlargement for limiting amplifier 10
Line terminal carry out using.
The present embodiment compares generation circuit unit 2, light receiving unit 3 and limit by current mirror unit 1, signal by providing
The optical module that width amplifier 10 is constituted, generation circuit unit 2, light receiving unit 3 connect current mirror unit 1 compared with signal respectively
It connects；Signal compares generation circuit unit 2 and connect with light receiving unit 3；Current mirror unit 1, for obtaining light receiving unit 3
High-speed happen suddenly photo-signal, and high-speed burst photo-signal is conveyed to signal and compares generation circuit unit 2；Letter
Number compare generation circuit unit 2, for happening suddenly photo-signal according to high-speed, comparative level signal is generated, by comparative level
Signal is conveyed to light receiving unit 3, and comparative level signal is that high level signal and low level signal are constituted；Light receiving unit 3 is used
In obtaining the high-speed burst optical signal on optical-fiber network, high-speed burst photoelectric current letter is converted by high-speed burst optical signal
Number, and high-speed continuous voltage signal is generated according to high-speed burst photo-signal, comparative level signal；Limiting amplifier
10, for receiving the high-speed continuous voltage signal of the conveying of light receiving unit 3, clipping is carried out to high-speed continuous voltage signal and is put
Big processing, by limited range enlargement treated high-speed continuous voltage signal is conveyed to optical line terminal carries out using.To provide
A kind of optical module for the high-speed burst optical signal that can handle on optical-fiber network, can convert high-speed burst optical signal to
High-speed happens suddenly after photo-signal, according to the signal strength of high-speed burst photo-signal, determines when will to generate
On a kind of continuous current Signal averaging to high-speed burst photo-signal, determining that signal compares the generation of generation circuit unit
When comparative level signal is high level signal, low level signal, continuous current signal is controlled respectively and is not added to, is added at a high speed
Rate happens suddenly in photo-signal, and then obtains the continuous photo-signal of high-speed, then according to high-speed burst photoelectric current letter
Number generate high-speed continuous voltage signal, and then by high-speed continuous voltage signal send to optical line terminal carry out using.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (5)
1. a kind of optical module characterized by comprising
Current mirror unit, signal compare generation circuit unit, light receiving unit；
Generation circuit unit, the light receiving unit connect the current mirror unit compared with the signal respectively；The letter
Number compare generation circuit unit connect with the light receiving unit；
The current mirror unit, for obtaining the burst photo-signal of the high-speed on the light receiving unit, and will be described
High-speed burst photo-signal is conveyed to the signal and compares generation circuit unit；
The signal compares generation circuit unit, for generating comparative level letter according to high-speed burst photo-signal
Number, the comparative level signal is conveyed to the light receiving unit, the comparative level signal is high level signal and low electricity
Ordinary mail number is constituted；
The light receiving unit, for obtaining the high-speed burst optical signal on optical-fiber network and generating continuous current signal, by institute
It states high-speed burst optical signal and is converted into high-speed burst photo-signal, and determining that the comparative level signal is high level
When signal, the continuous current Signal averaging is controlled less than in high-speed burst photo-signal, is determining the comparison
When level signal is low level signal, control on the continuous current Signal averaging to high-speed burst photo-signal,
To generate the continuous photo-signal of high-speed, and the continuous photo-signal of the high-speed is converted into high-speed continuous voltage letter
Number.
2. optical module according to claim 1, which is characterized in that the light receiving unit, comprising:
Photodetector, trans-impedance amplifier, control switch and code generator；
The photodetector is connect with the trans-impedance amplifier, and one end of the control switch is connected to the photodetector
Between the trans-impedance amplifier, the other end of the control switch is connect with the code generator；The photodetector
It is connect with the current mirror unit, control switch generation circuit unit compared with the signal connects；
The photodetector, for obtaining the high-speed burst optical signal on optical-fiber network, by the high-speed burst optical signal
It is converted into high-speed burst photo-signal；
The control switch, for turning off, so that the volume when determining the comparative level signal is high level signal
The continuous current Signal averaging of code generator conveying is less than in high-speed burst photo-signal；Determining that the comparison is electric
Ordinary mail number be low level signal when, be connected so that the continuous current Signal averaging to the high-speed burst photoelectric current
On signal, to generate the continuous photo-signal of high-speed；
The trans-impedance amplifier, for obtaining the height on the route between the photodetector and the trans-impedance amplifier
The continuous photo-signal of the high-speed is converted to the high-speed continuous voltage signal by the continuous photo-signal of rate.
3. optical module according to claim 1, which is characterized in that the signal compares generation circuit unit, is specifically used for:
Obtain reference voltage threshold；
The high-speed burst photo-signal of the current mirror unit transportation is received, and high-speed burst photo-signal is turned
It is changed to comparison voltage signal；
Determine whether the comparison voltage signal is more than or equal to the reference voltage threshold；
When determining that the comparison voltage signal is more than or equal to the reference voltage threshold, high level signal is exported, determining
When stating comparison voltage signal less than the reference voltage threshold, low level signal is exported, generates comparative level signal.
4. optical module according to claim 1, which is characterized in that the current mirror unit, comprising:
Booster circuit and mirror current source；
The booster circuit is connect with the mirror current source, the mirror current source generation circuit compared with the signal respectively
Unit, light receiving unit connection；
The booster circuit, for providing working inverse voltage to the light receiving unit by the mirror current source；
The mirror current source, high-speed on light receiving unit described in mirror image happen suddenly photo-signal, and by the height
Rate burst photo-signal is conveyed to the signal and compares generation circuit unit.
5. optical module according to claim 1-4, which is characterized in that further include: limiting amplifier；
The limiting amplifier is connect with the light receiving unit；
The limiting amplifier, for receiving the high-speed continuous voltage signal of the light receiving unit conveying, to the high speed
Rate continuous voltage signal carries out limited range enlargement processing, and by limited range enlargement, treated that high-speed continuous voltage signal is conveyed to light
Road terminal carry out using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187871.4A CN106788775B (en) | 2016-12-20 | 2016-12-20 | Optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187871.4A CN106788775B (en) | 2016-12-20 | 2016-12-20 | Optical module |
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| CN109067464A (en) * | 2018-09-11 | 2018-12-21 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN111556384A (en) * | 2020-04-24 | 2020-08-18 | 东莞铭普光磁股份有限公司 | Optical module receiving circuit and optical module |
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| CN104049318A (en) * | 2013-03-13 | 2014-09-17 | 深圳新飞通光电子技术有限公司 | Four-port OLT optical transmit-receive integrated module |
| CN105191045A (en) * | 2013-03-29 | 2015-12-23 | 恩菲斯能源公司 | Method and apparatus for improved burst mode during power conversion |
| CN106100723A (en) * | 2016-06-30 | 2016-11-09 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
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| US20150055956A1 (en) * | 2013-08-26 | 2015-02-26 | Electronics And Telecommunications Research Institute | Passive optical network system using time division multiplexing |
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| CN104049318A (en) * | 2013-03-13 | 2014-09-17 | 深圳新飞通光电子技术有限公司 | Four-port OLT optical transmit-receive integrated module |
| CN105191045A (en) * | 2013-03-29 | 2015-12-23 | 恩菲斯能源公司 | Method and apparatus for improved burst mode during power conversion |
| CN106100723A (en) * | 2016-06-30 | 2016-11-09 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
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