CN208386558U - A kind of novel light transmitting-receiving unification module - Google Patents
A kind of novel light transmitting-receiving unification module Download PDFInfo
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- CN208386558U CN208386558U CN201821004211.2U CN201821004211U CN208386558U CN 208386558 U CN208386558 U CN 208386558U CN 201821004211 U CN201821004211 U CN 201821004211U CN 208386558 U CN208386558 U CN 208386558U
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- optical receiver
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Abstract
The utility model discloses a kind of novel light transmitting-receiving unification modules, including optical transmitter, optical receiver, the optical transmitter include light source, laser driver and multiplexer, and the multiplexer includes a clock synthesizing circuit；The optical receiver includes photoelectric detector, image intensifer, clock and data recovery circuit, and the optical receiver detects the optical signal from optical fiber and is converted into electric signal, also to amplify to it before recovering data and clock waveform；The light of the optical transmitter transmitting, after the reflection of the first slide and the transmission of the second slide, the optical receiver is transferred to by optical fiber, and it is transferred out by the optical receiver, the optical fiber receives the external optical signal transmitted in optical receiver and is received by the reflection of the second slide by detector, after detector receives external optical signal, electric signal is converted to.
Description
Technical field
The utility model relates to technical field of photo communication more particularly to a kind of novel light transmitting-receiving unification modules.
Background technique
With the development of economic and technical, requirement of the people to broadband becomes higher and higher.The development of Fibre Optical Communication Technology
The sharp increase of data service in recent years, so that high-speed optical module large-scale application in optical communication system.
The light transmitting-receiving unification module of standard has obtained extensively by good Electro Magnetic Compatibility in industrial communication equipment
Application.However, the single channel transmission rate of light transmitting-receiving unification module is higher and higher, telecommunications with the further development of technology
Number rate have reached it is very high.It is to be improved in terms of current light transmitting-receiving unification Module Reliability, and interference free performance is poor.
Utility model content
The utility model in order to overcome the shortcomings in the prior art, provides a kind of novel light transmitting-receiving unification module.
The utility model is achieved through the following technical solutions:
A kind of novel light transmitting-receiving unification module, including optical transmitter, optical receiver, the optical transmitter include light source, swash
CD-ROM driver and multiplexer, the multiplexer include a clock synthesizing circuit；The optical receiver includes Photoelectric Detection
Device, image intensifer, clock and data recovery circuit, the optical receiver detect the optical signal from optical fiber and are converted into electricity
Signal will also amplify it before recovering data and clock waveform；The light of the optical transmitter transmitting, by the first glass
After the reflection of piece and the transmission of the second slide, it is transferred to the optical receiver by optical fiber, and transmitted out by the optical receiver
It goes, the optical fiber receives the external optical signal transmitted in optical receiver and connect by the reflection of the second slide by detector
It receives, after detector receives external optical signal, is converted to electric signal.
The light source uses light emitting diode or optical modulation laser transmitting set, and there are three low damage window, first windows for tool
The wavelength of mouth is 800-900nm, and the wavelength of second window is 1000-1400nm, and the wavelength of third window is 1500-
1800nm。
The laser driver has enough biasings and modulation current range, time and temperature in order to compensate for laser
Drift, laser driver must keep the dc point initially set up, realize that the best method of compensation is to introduce automated power control
System.
The photoelectric detector uses PIN photodetector.
When in use, the electric current of detection is sent to a transreactance amplifier by the photoelectric detector, is first converted electrical current into
Voltage, the single ended voltage after conversion are amplified and converted into differential signal, then pass through image intensifer.The clock and data are extensive
Compound circuit completion timing and amplitude discriminator, the data flow after generating a timing and amplitude recovery, the multiplexer is located at described
Between laser driver and low speed CMOS system, converts parallel data into serial bit stream and be sent into laser driver, the multiplexing
The conversion ratio of device depends on needed for the bit rate of optical transmitter and the speed of CMOS system interface, then timing and combining function
Transmission clock is synthesized.
Compared with prior art, the beneficial effects of the utility model are: the utility model can use it is highly integrated
Integrated circuit is respectively completed the function of each unit, can reach the functions such as preposition amplification, limited range enlargement, signal warning, and
Cost is relatively low, high reliablity, can reduce interference.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1, a kind of novel light transmitting-receiving unification module, including optical transmitter 1, optical receiver 2, the light
Transmitter 1 includes light source 11, laser driver 12 and multiplexer 13, and the multiplexer 13 includes a clock synthesis electricity
Road；The optical receiver 2 includes photoelectric detector 21, image intensifer 22, clock and data recovery circuit 23, the optical receiver
2 optical signals of the detection from optical fiber are simultaneously converted into electric signal, also to carry out to it before recovering data and clock waveform
Amplification；The light that the optical transmitter 1 emits passes after the reflection of the first slide 3 and the transmission of the second slide 4 by optical fiber 5
It is defeated by the optical receiver 2, and is transferred out by the optical receiver 2, the optical fiber 5 receives to be transmitted in optical receiver 2
External optical signal received by the reflection of the second slide 4 by detector 6, after detector 6 receives external optical signal, conversion
For electric signal.
The light source 11 uses light emitting diode or optical modulation laser transmitting set, and tool is there are three low damage window, and first
The wavelength of window is 800-900nm, and the wavelength of second window is 1000-1400nm, and the wavelength of third window is 1500-
1800nm。
The laser driver 12 has enough biasings and modulation current range, time and temperature in order to compensate for laser
Degree drift, laser driver 12 must keep the dc point initially set up, realize that the best method of compensation is to introduce automatic function
Rate control.
The multiplexer 13 converts parallel data into string between the laser driver 12 and low speed CMOS system
Line position is streamed into laser driver 12, and the conversion ratio of the multiplexer 13 depends on bit rate and the CMOS system of optical transmitter 1
Transmission clock needed for the speed of system interface, then timing and combining function is synthesized.
The photoelectric detector 21 uses PIN photodetector, and PIN diode price is lower, and works with electronic device
In same voltage.
The electric current of detection is sent to a transreactance amplifier by the photoelectric detector 21, first converts electrical current into voltage, is turned
Single ended voltage after changing is amplified and converted into differential signal, then passes through image intensifer 22.The clock and data restore electricity
23 completion timing of road and amplitude discriminator, the data flow after generating a timing and amplitude recovery.
The utility model can be respectively completed the function of each unit using highly integrated integrated circuit, can reach
The functions such as preposition amplification, limited range enlargement, signal warning, and cost is relatively low, high reliablity, can reduce interference.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model
Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical
In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (4)
1. a kind of novel light transmitting-receiving unification module, it is characterised in that:
Including optical transmitter (1), optical receiver (2), the optical transmitter (1) include light source (11), laser driver (12) with
And multiplexer (13), the multiplexer (13) include a clock synthesizing circuit；
The optical receiver (2) includes photoelectric detector (21), image intensifer (22), clock and data recovery circuit (23), institute
It states optical receiver (2) optical signal of detection from optical fiber and is converted into electric signal, before recovering data and clock waveform
Also it is amplified；
The light of optical transmitter (1) transmitting, after the reflection of the first slide (3) and the transmission of the second slide (4), by light
Fine (5) are transferred to the optical receiver (2), and are transferred out by the optical receiver (2), and the optical fiber (5) receives light-receiving
The external optical signal transmitted in device (2) is received by the reflection of the second slide (4) by detector (6), and detector (6) connects
After receiving external optical signal, electric signal is converted to.
2. a kind of novel light transmitting-receiving unification module according to claim 1, it is characterised in that: the light source (11) is using hair
Optical diode or optical modulation laser transmitting set, tool are 800-900nm there are three low damage window, the wavelength of first window, the
The wavelength of two windows is 1000-1400nm, and the wavelength of third window is 1500-1800nm.
3. a kind of novel light transmitting-receiving unification module according to claim 2, it is characterised in that: the multiplexer (13) is located at
Between the laser driver (12) and low speed CMOS system, converts parallel data into serial bit stream and be sent into laser driver
(12)。
4. a kind of novel light transmitting-receiving unification module according to claim 3, it is characterised in that: the photoelectric detector (21)
Using PIN photodetector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821004211.2U CN208386558U (en) | 2018-06-27 | 2018-06-27 | A kind of novel light transmitting-receiving unification module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821004211.2U CN208386558U (en) | 2018-06-27 | 2018-06-27 | A kind of novel light transmitting-receiving unification module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208386558U true CN208386558U (en) | 2019-01-15 |
Family
ID=64966000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821004211.2U Active CN208386558U (en) | 2018-06-27 | 2018-06-27 | A kind of novel light transmitting-receiving unification module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208386558U (en) |
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2018
- 2018-06-27 CN CN201821004211.2U patent/CN208386558U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230905 Address after: No. 404 Beimazhuang, Majiawu Town, Renqiu City, Cangzhou City, Hebei Province, 062550 Patentee after: Chen Liying Address before: 062550 east of Jingkai Road, Renqiu City, Cangzhou City, Hebei Province, north of the Development Zone Management Committee Patentee before: HEBEI DONGFANG XIANGRUI COMMUNICATION TECHNOLOGY Co.,Ltd. |