CN104935376A - Optical power measuring device - Google Patents
Optical power measuring device Download PDFInfo
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- CN104935376A CN104935376A CN201410103691.8A CN201410103691A CN104935376A CN 104935376 A CN104935376 A CN 104935376A CN 201410103691 A CN201410103691 A CN 201410103691A CN 104935376 A CN104935376 A CN 104935376A
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- measuring device
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- power measuring
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Abstract
The invention discloses an optical power measuring device. The optical power measuring device comprises a measuring unit provided with a single-chip microcomputer. According to the scheme I, the optical power measuring device further comprises an MPO connector, first detectors whose number is identical with the number of channels of the MPO connector, and a multi-path switch. An output end of the multi-path switch is electrically connected with the measuring unit. The single-chip microcomputer is used for controlling the multi-path switch to output a current signal. Multi-path laser signals of a detected band-shaped optical fiber are respectively transmitted to the first detector through the plurality of channels of the MPO connector. The first detector converts the received laser signals into current signals and further transmits the current signals to a plurality of input ends of the multi-path switch. The current signals output by the multi-path switch are transmitted to the measuring unit. The optical power measuring device overcomes the shortage that an existing optical power meter can only carry out single-channel measurement, and has the advantage that the multi-channel measurement can be carried out conveniently and rapidly.
Description
Technical field
The present invention relates to a kind of optical power measuring device, particularly relate to a kind of portable optical power measuring device.
Background technology
Due to optical fiber there is bandwidth, loss is low, lightweight, antijamming capability is strong, fidelity is high, reliable working performance and the feature such as with low cost, instead of traditional information transmission mode gradually in multiple fields such as communication, transfer of data, optical fiber communication becomes current first-selected data transfer solution.
Although the information carrying capacity of the Large Copacity that optical fiber communication provides, high speed, long distance has made people obtain a lot of facility in the transmission of information and acquisition, but the requirement of people to data transmission bauds, transmission quantity and the device space improves constantly, so the more MPO(Multi-fiberPush On of high integration, many optical fiber plug-in) packaged type has been born.MPO connector is a kind of multicore multichannel umbilical connector, and the wire jumper with MPO connector better can reduce usage space, increase the traffic.Start to widely use wire jumper with MPO connector in the world as data transfer solution.China is also at the step immediately following the world, and strengthen the data transmission set of paces follow-up oneself, large-scale data center uses the wire jumper with MPO connector to build one after another.
Along with the cable wiring manufacture construction of data center, inevitably with the problem of construction quality inspection, because MPO connector is the intensive integrated quick optical fiber connector of multichannel, can not mate with the optical fiber connector of conventional one-channel and compatibility, and existing optical power measuring device only has the single pass optical fiber connector, so, need with the use of one end with MPO connector during use, other end fan is opened as multiple single pass optical fiber connector, the single pass optical fiber connector are wherein connected on existing optical power measuring device, so provide necessary test condition to job site.When implementing this method, if scene only has an optical power measuring device, just need not connection breaking, the testing requirement of multiple passage could be met.For 12 two-core optical fiber, if desired all provide necessary measuring light power to all 12 passages, then must connect 12 single pass optical power measuring devices at 12 single pass optical fiber connector ends respectively and measure, both efficiency was low for obvious this method, and cost is high, construct loaded down with trivial details.
Summary of the invention
The technical problem to be solved in the present invention is that existing optical power measuring device can only carry out single pass measuring light power, need the defect that repeatedly connects when measuring ribbon fiber, provides a kind of optical power measuring device that can realize multi-channel measurement.
The present invention is solved the problems of the technologies described above by following technical proposals:
A kind of optical power measuring device, it comprises the measuring unit that has a single-chip microcomputer, be characterized in, described optical power measuring device adopts scheme one or scheme two, and described in scheme one and scheme two, optical power measuring device also comprises a MPO connector (i.e. MPO type fiber active linker);
Described in scheme one, optical power measuring device also comprises:
The first detector that quantity is identical with the quantity of the passage of described MPO connector and a variable connector, the output of described variable connector is electrically connected with described measuring unit, described single-chip microcomputer exports a road current signal for controlling described variable connector, the multi-path laser signal of tested ribbon fiber is transferred to described first detector respectively by the plurality of channels of described MPO connector, the laser signal received is converted to current signal by described first detector, be transferred to multiple inputs of described variable connector again, the current signal transfer that described variable connector exports is to described measuring unit, wherein, described first detector is the existing device for laser signal being converted to current signal, commercially, described variable connector is also multiway analog switch, for in multiple transmission or analog signal process, wherein any road analog output can be selected as required, equally commercially,
Described in scheme two, optical power measuring device also comprises:
One second detector and an optical switch, the output of described optical switch is electrically connected with described measuring unit by described second detector, described single-chip microcomputer exports a road laser signal for controlling described optical switch, the multi-path laser signal of tested ribbon fiber is transferred to multiple inputs of described optical switch respectively by the plurality of channels of described MPO connector, the laser signal transmission that described optical switch exports is to described second detector, the laser signal received is converted to current signal by described second detector, be transferred to described measuring unit again, wherein, described second detector is equally for being converted to current signal by laser signal, commercially, described optical switch is a kind of optics with one or more optional transmit port, for carrying out physics switching or logical operation to the light signal in optical transmission line or integrated optical circuit, be widely used in for optical fiber, fiber plant test and network test, Fibre Optical Sensor multiple spot monitoring system etc.
Scheme one and scheme two are all utilize the thought of the multi-path laser signal of tested ribbon fiber being carried out to the switching of multiselect one and the conversion of photoelectricity, only scheme one first multi-path laser signal is converted to corresponding current signal, in multichannel current signal, select a road to export again, and scheme two first selects a road laser in multi-path laser signal, then the laser signal chosen is converted to current signal.Angle is realized from scheme one and scheme two, described first detector and described second detector can use small-sized detector, can't occupy too many space in described optical power measuring device, described variable connector has compared with described optical switch the advantage that volume is little, cost is low.
Preferably, described optical power measuring device also comprises the core number ribbon fiber identical with the quantity of the passage of described MPO connector,
Described in scheme one, ribbon fiber is used for each passage and first detector described in each of MPO connector described in synchronized links;
Described in scheme two, ribbon fiber is used for each passage of MPO connector and each described input of described optical switch described in synchronized links.
Preferably, in scheme one, described MPO connector, described ribbon fiber, described first detector, described variable connector and described single-chip microcomputer are integrated in the housing of described optical power measuring device;
In scheme two, described MPO connector, described ribbon fiber, described second detector, described optical switch and described single-chip microcomputer are integrated in the housing of described optical power measuring device.
Preferably, described in scheme one, the first detector is in-Ga-As photoelectric detector, and described in scheme two, the second detector is in-Ga-As photoelectric detector.
Preferably, described in scheme two, optical switch is MEMS(Micro-Electro-MechanicalSystems, MEMS (micro electro mechanical system)) optical switch, it is the micro mirror array that based semiconductor Micrometer-Nanometer Processing Technology constructs on the semiconductor substrate, there is microminiaturization, very high switch speed and little insertion loss.
Preferably, described measuring unit also comprises a current signal amplifier circuit and an AD(modulus) data converting circuit;
In scheme one, the output of described variable connector is electrically connected with described single-chip microcomputer by described current signal amplifier circuit and described AD data converting circuit successively;
In scheme two, the output of described second detector is electrically connected with described single-chip microcomputer by described current signal amplifier circuit and described AD data converting circuit successively.Wherein, in scheme one and scheme two, described current signal amplifier circuit has amplified current signal concurrently and current signal is converted to the function of voltage signal.
Preferably, described optical power measuring device also comprises a key press detecting circuit and some buttons, and the input of described key press detecting circuit connects described some buttons, output connects described single-chip microcomputer.
Preferably, described optical power measuring device also comprises a USB communicating circuit, and described USB communicating circuit is for connecting described single-chip microcomputer and external equipment.
Preferably, described optical power measuring device also comprises a display circuit, and described display circuit is connected to described single-chip microcomputer, and described display circuit is for showing the running parameter of described optical power measuring device.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is: optical power measuring device of the present invention can realize multi-channel measurement when not using optical patchcord, avoid repeatedly, repeatedly connect the trouble of tested ribbon fiber and optical power measuring device, there is the advantage that integrated level is high, easy to use, portable, meet the needs of optical fiber measurement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the optical power measuring device of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the optical power measuring device of the embodiment of the present invention 2.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
A kind of optical power measuring device, for measuring the power of the multi-path laser signal transmitted in a tested ribbon fiber, see Fig. 1, described optical power measuring device comprises:
One MPO connector 11, be connected for detachable (activity) realized between optical fiber with optical fiber, it gets up the docking of two of optical fiber end face precisions, the light energy exported to make launching fiber can be coupled to greatest extent to receive in optical fiber and go, and makes get involved optical link due to it and reduce to minimum to the impact that system causes;
The ribbon fiber 12 that one core number is identical with the quantity of the passage of described MPO connector 11;
The first detector 13 that quantity is identical with the quantity of the passage of described MPO connector 11, described first detector can select in-Ga-As photoelectric detector (InGaAs), effective detection diameter is 75 μm (microns), operation wavelength is 800 ~ 1700nm(nanometer), laser wavelength range involved by effective covering optical communication field, microencapsulated has response speed and lower dark current faster.
One variable connector 14, exports for selecting wherein any road current signal in multichannel current signal as required;
One measuring unit 15, described measuring unit 15 comprises one to export road current signal single-chip microcomputer 151, current signal amplifier circuit 152 and an AD data converting circuit 153 for controlling described variable connector 14, and the output of described variable connector 14 is electrically connected with described single-chip microcomputer 151 by described current signal amplifier circuit 152 and described AD data converting circuit 153 successively;
One key press detecting circuit 16 and some buttons 17, the input of described key press detecting circuit 16 connects described some buttons 17, output connects described single-chip microcomputer 151;
One USB communicating circuit 18, for connecting described single-chip microcomputer 151 and external equipment;
And a display circuit 19, described display circuit 19 is connected to described single-chip microcomputer 151, for showing the running parameter of described optical power measuring device.
Wherein, described MPO connector 11 comprises plurality of channels, and each described passage is connected with each core of described ribbon fiber 12 respectively, each core of described ribbon fiber 12 is connected with the input of described first detector 13 again respectively, and the output of described first detector 13 accesses multiple inputs of described variable connector 14 respectively.That is, described ribbon fiber 12 achieves the synchronized links of each described passage and each described first detector 13, furthermore achieved that the one_to_one corresponding between the passage of described MPO connector 11 and the input of described variable connector 14.Be one 12 two-core optical fiber for described tested ribbon fiber, described MPO connector 11 need have 12 passages, described ribbon fiber 12 is one 12 two-core optical fiber, the quantity of described first detector 13 is 12, described variable connector 14 is one 12 tunnels analogy switches, corresponding 1 first detector 13 of 1 passage of described MPO connector 11,1 input of corresponding described variable connector 14, it is the situation such as 4 two-core optical fiber, 8 two-core optical fiber that described optical power measuring device is equally applicable to described tested ribbon fiber.
When using described optical power measuring device to measure the multi-path laser signal transmitted in described tested ribbon fiber, described tested ribbon fiber need be inserted the port of described MPO connector 11, described tested ribbon fiber and described MPO connector 11 effectively and are directly of coupled connections, described multi-path laser signal is guided respectively by the plurality of channels of described MPO connector 11 and is coupled to described first detector 13, the laser signal received is converted to current signal by described first detector 13, be transferred to multiple inputs of described variable connector 14 again, described variable connector 14 exports a road current signal to described current signal amplifier circuit 152 by the control of described single-chip microcomputer 151, the current signal received amplifies and is transferred to described AD data converting circuit 153 after being converted to voltage signal by described current signal amplifier circuit 152, described AD data converting circuit 153 converts voltage signal to digital signal, again by described digital data transmission to described single-chip microcomputer 151, described single-chip microcomputer 151 is by analyzing the multiplication factor determining described current signal amplifier circuit 152, described single-chip microcomputer 151 needs the information transmission of receiving and dispatching to other external equipment by its USB port by described USB communicating circuit 18, as computer etc., the situation that described key press detecting circuit 16 is pressed by the described button 17 of detection feeds back to described single-chip microcomputer 151, to provide corresponding control information and action, described display circuit 19 is under the driving of described single-chip microcomputer 151, running parameter and other information of described optical power measuring device are shown by LCD.
In the present embodiment, described MPO connector 11, described ribbon fiber 12, described first detector 13, described variable connector 14, described single-chip microcomputer 151, described key press detecting circuit 16, described button 17, described USB communicating circuit 18 and described display circuit 19, be all integrated in the housing of described optical power measuring device.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is, see Fig. 2, the optical power measuring device of the present embodiment does not comprise quantity first detector 13 identical with the quantity of the passage of described MPO connector 11 and described variable connector 14, but comprises:
One for being converted to the second detector 23 of current signal and an optical switch 24(as mems optical switch by laser signal); Each passage of MPO connector 11 and each described input of described optical switch 24 described in described ribbon fiber 12 synchronized links.The output of described optical switch 24 is electrically connected with described current signal amplifier circuit 152 by described second detector 23, and described single-chip microcomputer 151 exports a road laser signal for controlling described optical switch 24.
When using described optical power measuring device to measure the multi-path laser signal transmitted in described tested ribbon fiber, described tested ribbon fiber need be inserted the port of described MPO connector 11, described tested ribbon fiber 12 effectively and is directly of coupled connections with described MPO connector 11, described multi-path laser signal is guided respectively the multiple inputs being coupled to described optical switch 24 by the plurality of channels of described MPO connector 11, described optical switch 24 exports a road laser signal to described second detector 23 by the control of described single-chip microcomputer 151, the laser signal received is converted to current signal by described second detector 23, be transferred to described current signal amplifier circuit 152 again.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (9)
1. an optical power measuring device, it comprises the measuring unit that has a single-chip microcomputer, it is characterized in that, described optical power measuring device adopts scheme one or scheme two, and described in scheme one and scheme two, optical power measuring device also comprises a MPO connector;
Described in scheme one, optical power measuring device also comprises:
The first detector that quantity is identical with the quantity of the passage of described MPO connector and a variable connector, the output of described variable connector is electrically connected with described measuring unit, described single-chip microcomputer exports a road current signal for controlling described variable connector, the multi-path laser signal of tested ribbon fiber is transferred to described first detector respectively by the plurality of channels of described MPO connector, the laser signal received is converted to current signal by described first detector, be transferred to multiple inputs of described variable connector again, the current signal transfer that described variable connector exports is to described measuring unit,
Described in scheme two, optical power measuring device also comprises:
One second detector and an optical switch, the output of described optical switch is electrically connected with described measuring unit by described second detector, described single-chip microcomputer exports a road laser signal for controlling described optical switch, the multi-path laser signal of tested ribbon fiber is transferred to multiple inputs of described optical switch respectively by the plurality of channels of described MPO connector, the laser signal transmission that described optical switch exports is to described second detector, the laser signal received is converted to current signal by described second detector, then is transferred to described measuring unit.
2. optical power measuring device as claimed in claim 1, it is characterized in that, described optical power measuring device also comprises the core number ribbon fiber identical with the quantity of the passage of described MPO connector,
Described in scheme one, ribbon fiber is used for each passage and first detector described in each of MPO connector described in synchronized links;
Described in scheme two, ribbon fiber is used for each passage of MPO connector and each described input of described optical switch described in synchronized links.
3. optical power measuring device as claimed in claim 2, it is characterized in that, in scheme one, described MPO connector, described ribbon fiber, described first detector, described variable connector and described single-chip microcomputer are integrated in the housing of described optical power measuring device;
In scheme two, described MPO connector, described ribbon fiber, described second detector, described optical switch and described single-chip microcomputer are integrated in the housing of described optical power measuring device.
4. optical power measuring device as claimed in claim 1, it is characterized in that, described in scheme one, the first detector is in-Ga-As photoelectric detector, and described in scheme two, the second detector is in-Ga-As photoelectric detector.
5. optical power measuring device as claimed in claim 1, it is characterized in that, described in scheme two, optical switch is mems optical switch.
6. optical power measuring device as claimed in claim 1, it is characterized in that, described measuring unit also comprises a current signal amplifier circuit and an AD data converting circuit;
In scheme one, the output of described variable connector is electrically connected with described single-chip microcomputer by described current signal amplifier circuit and described AD data converting circuit successively;
In scheme two, the output of described second detector is electrically connected with described single-chip microcomputer by described current signal amplifier circuit and described AD data converting circuit successively.
7. optical power measuring device as claimed in claim 6, it is characterized in that, described optical power measuring device also comprises a key press detecting circuit and some buttons, and the input of described key press detecting circuit connects described some buttons, output connects described single-chip microcomputer.
8. optical power measuring device as claimed in claim 7, it is characterized in that, described optical power measuring device also comprises a USB communicating circuit, and described USB communicating circuit is for connecting described single-chip microcomputer and external equipment.
9. optical power measuring device as claimed in claim 8, it is characterized in that, described optical power measuring device also comprises a display circuit, and described display circuit is connected to described single-chip microcomputer, and described display circuit is for showing the running parameter of described optical power measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103691.8A CN104935376A (en) | 2014-03-19 | 2014-03-19 | Optical power measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410103691.8A CN104935376A (en) | 2014-03-19 | 2014-03-19 | Optical power measuring device |
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| CN104935376A true CN104935376A (en) | 2015-09-23 |
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| CN201410103691.8A Pending CN104935376A (en) | 2014-03-19 | 2014-03-19 | Optical power measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109061806A (en) * | 2018-07-24 | 2018-12-21 | 中国航空工业集团公司西安航空计算技术研究所 | Rack Multichannel photoswitch based on FPGA |
| CN111162868A (en) * | 2019-11-28 | 2020-05-15 | 北京宇航系统工程研究所 | Communication method and system for large-angle deviation tolerance and data error correction of laser |
| CN113418602A (en) * | 2021-08-23 | 2021-09-21 | 深圳市力子光电科技有限公司 | Optical power meter circuit and optical power meter |
| CN114664216A (en) * | 2022-02-21 | 2022-06-24 | 北京富通亚讯网络信息技术有限公司 | Diversity signal generating system and method based on double-domain mode locking technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061806A (en) * | 2018-07-24 | 2018-12-21 | 中国航空工业集团公司西安航空计算技术研究所 | Rack Multichannel photoswitch based on FPGA |
| CN111162868A (en) * | 2019-11-28 | 2020-05-15 | 北京宇航系统工程研究所 | Communication method and system for large-angle deviation tolerance and data error correction of laser |
| CN111162868B (en) * | 2019-11-28 | 2023-05-09 | 北京宇航系统工程研究所 | Communication method and system for large-angle deviation tolerance and data error correction of laser |
| CN113418602A (en) * | 2021-08-23 | 2021-09-21 | 深圳市力子光电科技有限公司 | Optical power meter circuit and optical power meter |
| CN114664216A (en) * | 2022-02-21 | 2022-06-24 | 北京富通亚讯网络信息技术有限公司 | Diversity signal generating system and method based on double-domain mode locking technology |
| CN114664216B (en) * | 2022-02-21 | 2022-10-18 | 北京富通亚讯网络信息技术有限公司 | Display system with MPO optical fiber function |
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