CN104301042A - SFP double emitting optical module and optical communication system - Google Patents
SFP double emitting optical module and optical communication system Download PDFInfo
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- CN104301042A CN104301042A CN201410573095.6A CN201410573095A CN104301042A CN 104301042 A CN104301042 A CN 104301042A CN 201410573095 A CN201410573095 A CN 201410573095A CN 104301042 A CN104301042 A CN 104301042A
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Abstract
The invention discloses an SFP double emitting optical module which comprises a signal shunt module, a first emitting unit, a second emitting unit and a microcontroller, wherein the signal shunt module is used for converting an input signal into two channels of same input signals; the first emitting unit is connected with the signal shunt module and used for receiving one channel of the input signal in the two channels of the same input signals and converts the input signal into an optical signal to be output; the second emitting unit is connected with the signal shunt module and used for receiving the other channel of the input signal in the two channels of the same input signals and converts the input signal into an optical signal to be output; the microcontroller is connected with the first emitting unit and the second emitting unit and used for monitoring relative parameters of the first emitting unit and the second emitting unit, and an optical module digital detection and monitoring function is realized. By the aid of the SFP double emitting optical module, the function that a signal channel signal source can be divided into two channels of same signals to be emitted can be realized, and parameter information of the SFP double emitting optical module can be monitored in real time simultaneously.
Description
Technical field
The present invention relates to optical module field, particularly the two utilizing emitted light module of a kind of SFP and optical communication system.
Background technology
The technology that traditional optical transceiver module adopts single-shot list to receive, module side is launched, and opposite side receives.As the optical fiber transceiver module of SFP encapsulation, circuit port adopts golden finger to connect, and can realize hot plug.But SFP optical fiber transceiver module can only realize a road signal launches and a road Signal reception, can only leave unused in its reception side, the application scenario of launching only needing signal, therefore only needing to launch the application scenario not needing to receive, use traditional SFP optical transceiver module can cause the waste of receiver side, therefore occur the design of two utilizing emitted light module.What the two utilizing emitted light module of existing SFF adopted is make the receiver side of traditional optical transceiver module into second road transmitting terminal, two-way independently radiating circuit can be realized like this, but the independent transmission in two-way unlike signal source can only be realized, one-channel signal source can not being realized and be divided into the function that the identical signal of two-way carries out launching, cannot use needing the occasion using one-channel signal source to launch the identical signal of two-way.Meanwhile, owing to adopting SFF encapsulation, the two utilizing emitted light building block technique of existing SFF cannot support hot plug, also cannot realize the real-time monitoring to information such as modular power source voltage, working temperature, light power, bias currents.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency existing in prior art, the two utilizing emitted light module of a kind of SFP and optical communication system are provided, it can realize one-channel signal source and be divided into the function that the identical signal of two-way carries out launching, the application scenario of launching only needing signal, make the application that two utilizing emitted light module is satisfied the demand in the occasion using the identical signal of one-channel signal source transmitting two-way, can monitor in real time the two light emitting module parameter information of SFP simultaneously.
In order to realize foregoing invention object, the technical solution used in the present invention is:
The two utilizing emitted light module of a kind of SFP, comprising:
Signal shunt module, for converting a road input signal to two-way identical input signal;
First transmitter unit, is connected with described signal shunt module, for receiving the identical input signal Zhong mono-road input signal of described two-way, described input signal being converted to light signal and exporting;
Second transmitter unit, is connected with described signal shunt module, for receiving another road input signal in the identical input signal of described two-way, described input signal being converted to light signal and exporting;
Microcontroller, is connected with described first transmitter unit and the second transmitter unit, for monitoring the relevant parameter of described first transmitter unit and the second transmitter unit, realizes optical module Digital Detecting monitoring function.
Preferably, described signal shunt module is 1:2 fan out buffer.
Preferably, described input signal is differential input signal.
Preferably, described first transmitter unit and the second transmitter unit include the laser driver and light emission component TOSA that are connected successively, and described TOSA also connects and composes power control circuit by power control module and described laser driver; Described laser driver is connected with described microcontroller by automatically shutting down module;
Described microcontroller is used for according to outside cut-off signals or internal fault signal controlling, automatically shutting down module thus turning off described laser driver;
And/or, described microcontroller also for the backlight diode in the described TOSA of described first transmitter unit and the second transmitter unit of sampling electric current so that obtain utilizing emitted light power.
Preferably, described microcontroller unit also gathers optical module supply voltage information by ADC.
Preferably, also comprise:
Temperature collect module, is connected with described microcontroller, for Real-time Collection module work temperature;
The described working temperature that described microcontroller exports for receiving described temperature collect module, according to current described working temperature, is supplied to the bias current under the corresponding Current Temperatures of laser in described TOSA and modulated current;
And/or described microcontroller, also for when detecting that the drive current of described laser is greater than the upper safety limit threshold value of setting, controlling described laser driver and making described drive current be decreased to be less than or equal to described upper limit threshold.
Preferably, this optical module adopts the pinout meeting SFP MSA agreement, and its pinout comprises I
2c bus communication pin, laser fails instruction pin and at least one reserved pin.
Preferably, be provided with the register according to predetermined way definition in described microcontroller, thus described microcontroller can be monitored the relevant parameter of described first transmitter unit and the second transmitter unit.
Further, the described register according to predetermined way definition is specially:
The basis of SFF-8472 protocol definition redefines setting to register, redefine receiving element power detection and the related register that SFF-8472 protocol definition removed by the register after arranging, ME for maintenance detect and temperature detection register constant, retaining former transmitter unit related register is the first transmitter unit related register, newly-increased to the second transmitter unit DDM monitoring related register.
The present invention also provides a kind of optical communication system, and comprise optical communication equipment and the two utilizing emitted light module of SFP described above, described optical communication equipment is connected with the two utilizing emitted light module communication of SFP described at least one.
Compared with prior art, beneficial effect of the present invention:
SFP of the present invention is two launches optical mode, and wherein signal shunt module converts a road input signal to two-way identical input signal; First transmitter unit receives the identical input signal Zhong mono-road input signal of described two-way, described input signal is converted to light signal and exports; Second transmitter unit receives another road input signal in the identical input signal of described two-way, described input signal is converted to light signal and exports; The relevant parameter of microcontroller to described first transmitter unit and the second transmitter unit is monitored, and realizes optical module Digital Detecting monitoring function.Due to the built-in signal shunt module of one-to-two, achieve the input of one-channel signal source, simple two-way signal output, there is Digital Detecting monitoring DDM function simultaneously, and the compatibility to existing SFP receiver-transmitter integrated module pinout can be realized, adopt SFP encapsulation to support warm connection function.
Accompanying drawing illustrates:
Fig. 1 is the two utilizing emitted light module diagram of SFP in the embodiment of the present invention;
Fig. 2 is the two utilizing emitted light module pinout schematic diagram of SFP in the embodiment of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
The two utilizing emitted light module of SFP as shown in Figure 1, comprising: signal shunt module, for converting a road input signal to two-way identical input signal; First transmitter unit, is connected with described signal shunt module, for receiving the identical input signal Zhong mono-road input signal of described two-way, described input signal being converted to light signal and exporting; Second transmitter unit, is connected with described signal shunt module, for receiving another road input signal in the identical input signal of described two-way, described input signal being converted to light signal and exporting; And microcontroller, being connected with described first transmitter unit and the second transmitter unit, for monitoring the relevant parameter of described first transmitter unit and the second transmitter unit, realizing optical module Digital Detecting monitoring function.
Concrete, the shunt module of signal described in the present embodiment is 1:2 fan out buffer.Described input signal is differential input signal.1:2 fan out buffer converts a pair differential input signal of signal source to two-way identical differential input signal, in order to drive two-way radiating circuit.Described first transmitter unit and the second transmitter unit include the laser driver and light emission component TOSA that are connected successively, and described TOSA also connects and composes power control circuit by power control module and described laser driver; Described laser driver is connected with described microcontroller by automatically shutting down module (the not shown described microcontroller of Fig. 1 and the annexation automatically shut down between module); Described microcontroller is used for according to outside cut-off signals or internal fault signal controlling, automatically shutting down module (such as CMOS transistor controlled switch) thus turning off described laser driver; And/or, described microcontroller also for the backlight diode in the described TOSA of described first transmitter unit and the second transmitter unit of sampling electric current so that obtain utilizing emitted light power.
The turn-off function of the two utilizing emitted light module of this SFP has two kinds of patterns: outside cut-off signals Disable turns off and internal fault signal Fault turns off:
1) when outside (external communication device be such as connected with optical module) needs to turn off laser, outside to optical module Disable cut-off signals, microprocessor controls automatically shuts down the laser driver that module work turns off two passages.
2) when making the work of a certain multichannel laser device abnormal for a certain reason, microcontroller detects abnormal operating state, i.e. malfunction, and now microcontroller sends Fault signal to module-external and turns off the laser driver of respective channel.
The difference that peripheral cut-off signals Disable of the present invention turns off and internal fault signal Fault turns off is: it is send cut-off signals by module-external that outside Disable turns off, turn off the laser driver of two passages simultaneously, it is then that module independently sends cut-off signals when the work of module multichannel laser device is abnormal that inner Fault turns off, and only turn off the laser driver of the passage (i.e. faulty channel) of corresponding non-normal working, externally export Fault signal simultaneously.It should be noted that, described in automatically shut down module and also can save, directly control by described microcontroller shutoff or the open operation that laser driver module realizes laser.
In one example, described microcontroller also gathers optical module supply voltage information by ADC, can externally output voltage information, is convenient to external equipment acquisition module information of voltage.
In one example, this optical module also comprises temperature collect module, is connected with described microcontroller, for Real-time Collection module work temperature; The described working temperature that described microcontroller exports for receiving described temperature collect module, according to current described working temperature, be supplied to the bias current under the corresponding Current Temperatures of laser in described TOSA and modulated current, and then regulate power and the extinction ratio parameter of laser.This optical module adopts digital form to carry out power back-off and extinction ratio to laser and compensates, and namely described microcontroller is supplied to bias current under the corresponding Current Temperatures of laser and modulated current, simple and convenient easy to operate.The parameter such as working temperature, modular power source voltage, two-way transmitting terminal transmitting power, two-way transmitting terminal bias current of microcontrollers monitor module simultaneously.
In one embodiment, except completing above-mentioned functions, described microcontroller, also for when detecting that the drive current of described laser is greater than the upper safety limit threshold value of setting, controlling described laser driver and described drive current being decreased to be less than or equal to described upper limit threshold.The upper limit of laser drive current is limited, doing so avoids the situation using conventional automatic power control technology to cause laser fails in high temperature environments because offset current is excessive, significantly can reduce module dissipation simultaneously.Owing at high temperature limiting the drive current of laser, at high temperature the light power of laser can slightly decline, but does not affect the communication between optical module, so just can the operating ambient temperature upper limit of remarkable extension module.
Preferably, referring to Fig. 2, this optical module adopts the pinout meeting SFP MSA agreement, and its pinout comprises I
2c bus communication pin, laser fails instruction pin and at least one reserved pin.As an example, its pinout situation is specifically as shown in table 1.
Table 1
Fig. 2 and the pinout of table 1 to the two utilizing emitted light module of SFP of the present invention have been described in detail.Compared with the two utilizing emitted light module of SFF, pinout of the present invention contains I
2the instruction of C bus, laser fails and the reserved pin of part, can complete compatible SFP Module Multi-Source Agreement, directly can replace the function that existing SFP receiver-transmitter integrated module is launched to realize two-way, and without the need to changing based on the application system of SFP receiver-transmitter integrated module and the interface of optical module existing.
In one embodiment, be provided with the register according to predetermined way definition in described microcontroller, thus described microcontroller can be monitored the relevant parameter of described first transmitter unit and the second transmitter unit.The described register according to predetermined way definition is specially: on the basis of SFF-8472 protocol definition, redefine setting to register, redefine receiving element power detection and the related register that SFF-8472 protocol definition removed by the register after arranging, ME for maintenance detect and temperature detection register constant, retaining former transmitter unit related register is the first transmitter unit related register, newly-increased to the second transmitter unit DDM monitoring related register.
As an example, the adjustment contrast of the two utilizing emitted light module of this SFP on SFF-8472 protocol definition register basis is as shown in table 2.
Table 2
The optical module of general band DDM function is all monitored 5 of module parameters according to SFF-8472 agreement, these parameters are: temperature (address A2H, 96 ~ 97 bytes), voltage (address A2H, 98 ~ 99 bytes), laser bias current (address A2H, 100 ~ 101 bytes), light emitting power (address A2H, 102 ~ 103 bytes), light receiving power (address A2H, 104 ~ 105 bytes).A2h00 ~ 39, address byte corresponding with it defines alarm and the alarming threshold of these 5 parameters; Address A2H 112 ~ 117 byte defines alarm and the alarm flag bit of these 5 parameters.
Existing register arranges the monitoring demand that can meet general band DDM receiver-transmitter integrated module, but then can not meet the monitoring to two-way light emitting power for the optical module product with two DDM functions.Therefore, need again to arrange register, as shown in table 2, list the part that new register arranges change compared with SFF-8472.By redefining register, eliminate light receiving power monitoring function, and add the second transmitter unit light emitting power, the second transmitter unit bias current monitoring function, thus realize the monitoring to two-way light emitting power.
The present invention also provides a kind of optical communication system, and comprise optical communication equipment and the two utilizing emitted light module of above-mentioned arbitrary described SFP, described optical communication equipment is connected with the two utilizing emitted light module communication of SFP described at least one.
This optical module possesses DDM function, by I
2c bus communicates with optical communication equipment, and optical communication equipment can control optical module.In use, terminal optical communication equipment (as optical fiber switch, optical line terminal OLT etc.) by with the communicating of multiple optical module, the work state information of each optical module of acquisition that can be real-time, comprise the transmitting power of optical module two transmitter units, bias current, voltage value, the temperature of inside modules and module alerts and warning information etc., abnormal optical module can be occurred by Timeliness coverage like this.By the control of optical communication equipment realization to optical module, can process in time there being abnormal optical module simultaneously.
By reference to the accompanying drawings the specific embodiment of the present invention is described in detail above, but the present invention is not restricted to above-mentioned execution mode, in the spirit and scope situation of claim not departing from the application, those skilled in the art can make various amendment or remodeling.
Claims (10)
1. the two utilizing emitted light module of SFP, is characterized in that, comprising:
Signal shunt module, for converting a road input signal to two-way identical input signal;
First transmitter unit, is connected with described signal shunt module, for receiving the identical input signal Zhong mono-road input signal of described two-way, described input signal being converted to light signal and exporting;
Second transmitter unit, is connected with described signal shunt module, for receiving another road input signal in the identical input signal of described two-way, described input signal being converted to light signal and exporting;
Microcontroller, is connected with described first transmitter unit and the second transmitter unit, for monitoring the relevant parameter of described first transmitter unit and the second transmitter unit, realizes optical module Digital Detecting monitoring function.
2. the two utilizing emitted light module of SFP according to claim 1, it is characterized in that, described signal shunt module is 1:2 fan out buffer.
3. the two utilizing emitted light module of SFP according to claim 1, it is characterized in that, described input signal is differential input signal.
4. the two utilizing emitted light module of the SFP according to any one of claims 1 to 3, it is characterized in that, described first transmitter unit and the second transmitter unit include the laser driver and light emission component TOSA that are connected successively, and described TOSA also connects and composes power control circuit by power control module and described laser driver; Described laser driver is connected with described microcontroller by automatically shutting down module;
Described microcontroller is used for according to outside cut-off signals or internal fault signal controlling, automatically shutting down module thus turning off described laser driver;
And/or, described microcontroller for the backlight diode in the described TOSA of described first transmitter unit and the second transmitter unit of sampling electric current so that obtain utilizing emitted light power.
5. the two utilizing emitted light module of SFP according to claim 4, is characterized in that, described microcontroller unit also gathers optical module supply voltage information by ADC.
6. the two utilizing emitted light module of SFP according to claim 4, is characterized in that, also comprise:
Temperature collect module, is connected with described microcontroller, for Real-time Collection module work temperature;
The described working temperature that described microcontroller exports for receiving described temperature collect module, according to current described working temperature, is supplied to the bias current under the corresponding Current Temperatures of laser in described TOSA and modulated current;
And/or described microcontroller, also for when detecting that the drive current of described laser is greater than the upper safety limit threshold value of setting, controlling described laser driver and making described drive current be decreased to be less than or equal to described upper limit threshold.
7. the two utilizing emitted light module of SFP according to claim 4, it is characterized in that, this optical module adopts the pinout meeting SFP MSA agreement, and its pinout comprises I
2c bus communication pin, laser fails instruction pin and at least one reserved pin.
8. the two utilizing emitted light module of SFP according to claim 4, it is characterized in that, be provided with the register according to predetermined way definition in described microcontroller, thus described microcontroller can be monitored the relevant parameter of described first transmitter unit and the second transmitter unit.
9. the two utilizing emitted light module of SFP according to claim 8, is characterized in that, the described register according to predetermined way definition is specially:
The basis of SFF-8472 protocol definition redefines setting to register, redefine receiving element power detection and the related register that SFF-8472 protocol definition removed by the register after arranging, ME for maintenance detect and temperature detection register constant, retaining former transmitter unit related register is the first transmitter unit related register, newly-increased to the second transmitter unit DDM monitoring related register.
10. an optical communication system, is characterized in that, comprise optical communication equipment and the two utilizing emitted light module of the SFP described in any one of claim 1-9, described optical communication equipment is connected with the two utilizing emitted light module communication of SFP described at least one.
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| CN104904142A (en) * | 2014-12-23 | 2015-09-09 | 索尔思光电（成都）有限公司 | Circuit, method and optical communication system suitable for double-rate power point compensation |
| CN105572821A (en) * | 2016-03-21 | 2016-05-11 | 四川新易盛通信技术有限公司 | Low-rate double-emission SFP optical module |
| CN105610515A (en) * | 2016-03-21 | 2016-05-25 | 成都新易盛通信技术股份有限公司 | Low rate DC-20Mbps double-emission SFP optical module |
| CN105610512A (en) * | 2016-03-21 | 2016-05-25 | 成都新易盛通信技术股份有限公司 | DC-20Mbps low-rate double-reception SFP optical module |
| CN105846903A (en) * | 2016-03-21 | 2016-08-10 | 成都新易盛通信技术股份有限公司 | Low-speed rate DC-20Mbps receiving-transmitting integrated SFP optical module |
| CN106253991A (en) * | 2016-09-19 | 2016-12-21 | 成都新易盛通信技术股份有限公司 | The transceiver of low rate, double receipts and double SFF optical modules |
| CN107528635A (en) * | 2017-08-17 | 2017-12-29 | 北京广利核***工程有限公司 | Communicator and method based on SFP optical modules |
| CN107786271A (en) * | 2016-08-26 | 2018-03-09 | 成都芯瑞科技股份有限公司 | The double light emitting modules of SFP low-power consumption |
| CN108768531A (en) * | 2018-06-01 | 2018-11-06 | 成都数维通信技术有限公司 | A kind of optical module with data copy function |
| CN112448764A (en) * | 2019-09-02 | 2021-03-05 | 武汉永鼎光通科技有限公司 | Optical module with DDM (distributed data management) reporting function for 5G (third generation) fronthaul network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104904142A (en) * | 2014-12-23 | 2015-09-09 | 索尔思光电（成都）有限公司 | Circuit, method and optical communication system suitable for double-rate power point compensation |
| CN104904142B (en) * | 2014-12-23 | 2019-03-19 | 索尔思光电（成都）有限公司 | Suitable for the circuit of dual rate power points compensation, optical module, method and optical communication system |
| CN105610512A (en) * | 2016-03-21 | 2016-05-25 | 成都新易盛通信技术股份有限公司 | DC-20Mbps low-rate double-reception SFP optical module |
| CN105610515A (en) * | 2016-03-21 | 2016-05-25 | 成都新易盛通信技术股份有限公司 | Low rate DC-20Mbps double-emission SFP optical module |
| CN105846903A (en) * | 2016-03-21 | 2016-08-10 | 成都新易盛通信技术股份有限公司 | Low-speed rate DC-20Mbps receiving-transmitting integrated SFP optical module |
| CN105572821A (en) * | 2016-03-21 | 2016-05-11 | 四川新易盛通信技术有限公司 | Low-rate double-emission SFP optical module |
| CN107786271A (en) * | 2016-08-26 | 2018-03-09 | 成都芯瑞科技股份有限公司 | The double light emitting modules of SFP low-power consumption |
| CN106253991A (en) * | 2016-09-19 | 2016-12-21 | 成都新易盛通信技术股份有限公司 | The transceiver of low rate, double receipts and double SFF optical modules |
| CN107528635A (en) * | 2017-08-17 | 2017-12-29 | 北京广利核***工程有限公司 | Communicator and method based on SFP optical modules |
| CN107528635B (en) * | 2017-08-17 | 2024-03-19 | 北京广利核***工程有限公司 | Communication device and method based on SFP optical module |
| CN108768531A (en) * | 2018-06-01 | 2018-11-06 | 成都数维通信技术有限公司 | A kind of optical module with data copy function |
| CN112448764A (en) * | 2019-09-02 | 2021-03-05 | 武汉永鼎光通科技有限公司 | Optical module with DDM (distributed data management) reporting function for 5G (third generation) fronthaul network |
| CN112448764B (en) * | 2019-09-02 | 2021-09-10 | 武汉永鼎光通科技有限公司 | Optical module with DDM (distributed data management) reporting function for 5G (third generation) fronthaul network |
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Address after: High tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610213 21 1 4 floor Applicant after: Eoptolink Technology Inc., Ltd. Address before: 610213 Sichuan city of Chengdu province Shuangliu County Xing Zhen Wu Lian Street No. 127 Applicant before: Eoptolink Technology Inc., Ltd. |
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