CN103368641B - The testing equipment of optical network unit and method of testing - Google Patents
The testing equipment of optical network unit and method of testing Download PDFInfo
- Publication number
- CN103368641B CN103368641B CN201310243937.7A CN201310243937A CN103368641B CN 103368641 B CN103368641 B CN 103368641B CN 201310243937 A CN201310243937 A CN 201310243937A CN 103368641 B CN103368641 B CN 103368641B
- Authority
- CN
- China
- Prior art keywords
- wavelength
- light
- pulse generator
- network unit
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The testing equipment of optical network unit and a method of testing, the testing equipment of optical network unit, in order to detect the optical communication quality of an optical network unit, this testing equipment comprises an optical transceiver module and a control unit.The emission wavelength of optical transceiver module is λ 1, and receiving wavelength is λ 2.Control unit connects optical transceiver module, the signal of telecommunication that optical transceiver module sends in order to reception control unit, the light-pulse generator of a wavelength for λ 1 is produced to make optical transceiver module, with the light-pulse generator detected as, and optical network unit receives after wavelength is the light-pulse generator of λ 1, exports the light-pulse generator that a wavelength is λ 2.
Description
Technical field
The present invention relates to a kind of testing equipment and method of testing, and in particular to the homemade testing equipment of one and method of testing, in order to the optical communication quality of detection fiber network element (OpticalNetworkUnit, ONU).
Background technology
In recent years, building of physical network is gradually large towards transmission capacity, the optical fiber communication network of good confidentiality.Particularly under long distance and a large amount of service condition transmitted, the quality of optical-fibre communications is much better than tradition with the quality of cable communication, with the service of specific implementation fiber-to-the-home (FTTH), common passive fiber network (PassiveOpticalNetwork, PON) is mainstream technology.Please refer to Fig. 1, it illustrates the system architecture diagram of traditional passive fiber network.Optical line terminal 10(Opticallineterminal, OLT) be arranged in local side apparatus, be externally connected to fiber optic network trunk 40.Light signal by Optical Fiber Transmission, and to be sent to along separate routes the optical network unit 30(ONU near each terminal use via splitter (Splitter) 20 by the light signal passed for 10 times by optical line terminal).Optical line terminal 10 is sent to after the light signal that each optical network unit 30 is uploaded then is coupled via splitter 20.
Along with popularizing of fiber optic network, the communication quality of fiber optic network must be more stable, to reduce rate of breakdown.Therefore, the test of optical network unit 30 is emphasis of outgoing quality test, and testing equipment used now is all buy expensive instrument, such as externally buy bit error rate test device (biterrorratetester, BERT), to provide accurate pulse signal, if but its shortcoming be instrument fault itself cannot oneself maintenance and must transfer to genuine keep in repair and ratio for self-manufactured content cannot promote.In view of this, self-developing meets the testing equipment that fiber optic network communication detection requires, is trend of the times.
Summary of the invention
The object of the present invention is to provide a kind of testing equipment and method of testing of optical network unit, replace existing testing equipment with homemade testing equipment.
According to an aspect of the present invention, propose a kind of testing equipment of optical network unit, in order to detect the optical communication quality of an optical network unit, the testing equipment of optical network unit comprises an optical transceiver module and a control unit.The emission wavelength of optical transceiver module is λ 1, and receiving wavelength is λ 2.Control unit connects optical transceiver module, the signal of telecommunication that optical transceiver module sends in order to reception control unit, the light-pulse generator of a wavelength for λ 1 is produced to make optical transceiver module, with the light-pulse generator detected as, and optical network unit receives after wavelength is the light-pulse generator of λ 1, exports the light-pulse generator that a wavelength is λ 2.
According to an aspect of the present invention, a kind of method of testing of optical network unit is proposed, in order to detect the optical communication quality of an optical network unit.The method of testing of this optical network unit comprises the following steps.There is provided an optical transceiver module, the emission wavelength of this optical transceiver module is λ 1, and receiving wavelength is λ 2.Connect a control unit, the signal of telecommunication sent with reception control unit, to make optical transceiver module produce the light-pulse generator of a wavelength for λ 1, with the light-pulse generator detected as.Optical network unit reception wavelength exports the light-pulse generator that a wavelength is λ 2 after being the light-pulse generator of λ 1.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 illustrates the system architecture diagram of traditional passive fiber network;
Fig. 2 illustrates the schematic diagram of the testing equipment of the optical network unit according to one embodiment of the invention;
Fig. 3 illustrates the flow chart of the method for testing of the optical network unit according to one embodiment of the invention.
Wherein, Reference numeral
10: optical line terminal
20: splitter
30: optical network unit
40: fiber optic network trunk
100: testing equipment
110: optical network unit
112: optical transceiver module
114: control unit
116: splitter
118: oscilloscope
120: optical network unit
122: photocell
124: light receiving element
Rx: wavelength is the light-pulse generator of λ 1
Tx: wavelength is the light-pulse generator of λ 2
Embodiment
The testing equipment of the optical network unit that the present embodiment discloses and method of testing, that the optical network unit produced voluntarily carries out reequiping and adjusting parameter, the light-pulse generator of a specific wavelength can be sent, with the light-pulse generator as detection fiber network element (ONU).Such as: originally emission wavelength is 1310nm, to receive wavelength be that the optical transceiver module of 1490nm is adapted as that emission wavelength is 1490nm, to receive wavelength be the optical transceiver module of 1310nm.That is, the emission wavelength 1490nm of the optical transceiver module after repacking can as the wavelength of a light-pulse generator of detection fiber network element.Therefore, the present embodiment is with after the repacking of existing optical network unit, and as homemade testing equipment, can replace the bit error rate test device that tradition is externally bought, cost is lower, and easier on using.
Be described in detail to proposition embodiment below, embodiment only in order to illustrate as example, and is not used to the scope of limit the present invention for protection.
First embodiment
Please refer to Fig. 2, it illustrates the schematic diagram of the testing equipment 100 according to the optical network unit of one embodiment of the invention.Carry out reequiping with the optical network unit 110 produced voluntarily and homemade testing equipment 100 comprises optical transceiver module 112 and a control unit 114.The signal of telecommunication that optical transceiver module 112 sends in order to reception control unit 114, the light-pulse generator Rx of a wavelength for λ 1 is produced to make optical transceiver module 112, and the light-pulse generator Rx that wavelength is λ 1 exports via optical transceiver module 112, with the light-pulse generator detected as.
Control unit 114 is such as central processing unit, frequency synthesizer etc., and frequency synthesizer mainly coordinates phase-locked loop (PLL) to form, to determine the output frequency of voltage-controlled oscillator by voltage-controlled oscillator (VCO).Once loop is locked, the output signal of voltage-controlled oscillator can be locked in characteristic frequency, such as, be locked in 1.25GHz or 2.5GHz, with as pulse signal.
Optical transceiver module 112 has an optical-electrical converter, such as, be laser diode, the signal of telecommunication sent in order to reception control unit 114, and is converted to the light-pulse generator Rx that wavelength is λ 1, such as, be converted to frequency 2.5GHz, wavelength is the light-pulse generator of 1490nm.
In addition, in fig. 2, testing equipment 100 comprises a splitter 116, is connected between optical transceiver module 112 and optical network unit 120 to be measured, the light-pulse generator Tx that the light-pulse generator being λ 1 with shunt transmission wavelength and wavelength are λ 2.
In addition, in fig. 2, testing equipment 100 comprises an oscilloscope 118, connects splitter 116, in order to receive the light-pulse generator Tx that wavelength is λ 2.That is, optical network unit 120 meeting output wavelength to be measured is the light-pulse generator Tx of λ 2, and is sent to oscilloscope 118 via splitter 116.Oscilloscope 118 can show the eye pattern of pulse signal.When the voltage error of pulse signal increases, the white space at eye pattern center can reduce, and when pulse signal along with noise increase and generation time error time, signal can produce to be shaken or drift and occur fuzzy strip line.Therefore, the quality of optical communication can be learnt by the degree that eye is wide, eye is high and sideline is shaken of observation eye pattern.
Please refer to Fig. 2, optical network unit 120 to be measured comprises photocell 122 and a light receiving element 124, and photocell 122 is the light-pulse generator Tx of λ 2 in order to output wavelength, and light receiving element 124 is in order to receive the light-pulse generator Rx that wavelength is λ 1.
In the present embodiment, testing equipment 100 is carried out reequiping with an optical network unit 110 and is adjusted the parameter of control unit 114, is λ 2 with the emission wavelength making to have in optical network unit 110, receives an optical transceiver module that wavelength is λ 1 and be adapted as emission wavelength and be λ 1, receive the optical transceiver module 112 that wavelength is λ 2.
For example, optical network unit 110 is such as optical gate logos and utensils, has emission wavelength and be λ 2, receive the optical transceiver module that wavelength is λ 1 when it is produced.In order to reach the object of self-control testing equipment 100, as long as be λ 2 by emission wavelength, to receive wavelength be that the optical transceiver module of λ 1 changes emission wavelength into and is λ 1, receives the optical transceiver module 112 that wavelength is λ 2, light-pulse generator required for just producing, therefore do not need externally to buy expensive bit error rate test device, meet cost requirement, and meet the requirement of fiber optic network communication detection.
Then, referring to Fig. 2 and Fig. 3, wherein Fig. 3 illustrates the flow chart of the method for testing of the optical network unit 120 according to one embodiment of the invention.
First, step 200 is to provide an optical transceiver module 112.The emission wavelength of optical transceiver module 112 is λ 1, and receiving wavelength is λ 2.Are connection one control units 114 in step 210, the signal of telecommunication sent with reception control unit 114, to make optical transceiver module 112 produce the light-pulse generator Rx of a wavelength for λ 1, with the light-pulse generator detected as.Step 230, after determinand (optical network unit 120) reception wavelength is the light-pulse generator of λ 1, exports the light-pulse generator Tx that a wavelength is λ 2.
Above-mentioned method of testing, more comprise and carry out step 220 and provide a splitter 116, splitter 116 is connected between optical transceiver module 112 and optical network unit 120, to transmit light-pulse generator that wavelength is λ 1 and the light-pulse generator Tx that wavelength is λ 2 along separate routes.In addition, above-mentioned method of testing, more comprise and carry out step 240 and provide an oscilloscope 118, oscilloscope 118 connects splitter 116, and the wavelength exported in order to receive optical network unit 120 is the light-pulse generator Tx of λ 2.The present embodiment learns the quality of optical communication by the degree that eye is wide, eye is high and sideline is shaken of eye pattern in observation oscilloscope.
Above-mentioned method of testing, wave band and the frequency of the light signal used are as follows: wavelength is the light-pulse generator Tx of λ 2 is such as the light-pulse generator of frequency 1.25GHz, wavelength 1310nm, and the light-pulse generator Rx that wavelength is λ 1 is such as the light-pulse generator of frequency 2.5GHz, wavelength 1490nm.
In order to reach the object of self-control testing equipment 100, the method of testing of the present embodiment is such as optical gate logos and utensils with an optical network unit 110() carry out reequiping and adjust the parameter of control unit 114, as long as be λ 2 by emission wavelength, to receive wavelength be that the optical transceiver module of λ 1 changes emission wavelength into and is λ 1, receives the optical transceiver module 112 that wavelength is λ 2, the light-pulse generator of the detection required for just producing, therefore do not need externally to buy expensive bit error rate test device, meet cost requirement, and meet the requirement of fiber optic network communication detection.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (12)
1. a testing equipment for optical network unit, in order to detect the optical communication quality of an optical network unit, it is characterized in that, the testing equipment of this optical network unit comprises:
One optical transceiver module, its emission wavelength is λ 1, and receiving wavelength is λ 2; And
One control unit, connect this optical transceiver module, the signal of telecommunication that this optical transceiver module sends in order to receive this control unit, the light-pulse generator of a wavelength for λ 1 is produced to make this optical transceiver module, with the light-pulse generator detected as, and this optical network unit receives after wavelength is the light-pulse generator of λ 1, exports the light-pulse generator that a wavelength is λ 2; Wherein,
This testing equipment is carried out reequiping with an optical network unit and is adjusted the parameter of this control unit, is λ 2 with the emission wavelength making to have in this optical network unit, receives an optical transceiver module that wavelength is λ 1 and be adapted as emission wavelength and be λ 1, receive this optical transceiver module that wavelength is λ 2.
2. the testing equipment of optical network unit according to claim 1, it is characterized in that, more comprise a splitter, be connected between this optical transceiver module and this optical network unit, this light-pulse generator that the light-pulse generator being λ 1 with shunt transmission wavelength and wavelength are λ 2.
3. the testing equipment of optical network unit according to claim 2, is characterized in that, more comprises an oscilloscope, connects this splitter, in order to receive this light-pulse generator that wavelength is λ 2.
4. the testing equipment of optical network unit according to claim 1, is characterized in that, this optical network unit is an optical gate logos and utensils.
5. the testing equipment of optical network unit according to claim 1, is characterized in that, this optical transceiver module has an optical-electrical converter, the signal of telecommunication sent in order to reception control unit, and changes this signal of telecommunication into the light-pulse generator of wavelength into λ 1.
6. the testing equipment of optical network unit according to claim 1, it is characterized in that, the light-pulse generator of wavelength to be this light-pulse generator of λ 2 be frequency 1.25GHz, wavelength 1310nm, and the light-pulse generator that wavelength is λ 1 is the light-pulse generator of frequency 2.5GHz, wavelength 1490nm.
7. a method of testing for optical network unit, in order to detect the optical communication quality of an optical network unit, it is characterized in that, the method for testing of this optical network unit comprises:
There is provided an optical transceiver module, the emission wavelength of this optical transceiver module is λ 1, and receiving wavelength is λ 2;
Connect a control unit, to receive the signal of telecommunication that this control unit sends, to make this optical transceiver module produce the light-pulse generator of a wavelength for λ 1, with the light-pulse generator detected as; And
This optical network unit reception wavelength exports the light-pulse generator that a wavelength is λ 2 after being the light-pulse generator of λ 1; Wherein,
Carry out reequiping with an optical network unit in this method of testing and adjust the parameter of this control unit, being λ 2 with the emission wavelength making to have in this optical network unit, receiving an optical transceiver module that wavelength is λ 1 and be adapted as emission wavelength and be λ 1, receive this optical transceiver module that wavelength is λ 2.
8. the method for testing of optical network unit according to claim 7, it is characterized in that, more comprise and provide a splitter, this splitter is connected between this optical transceiver module and this optical network unit, this light-pulse generator that the light-pulse generator being λ 1 with shunt transmission wavelength and wavelength are λ 2.
9. the method for testing of optical network unit according to claim 8, is characterized in that, more comprises and provides an oscilloscope, and this oscilloscope connects this splitter, and the wavelength exported in order to receive this optical network unit is this light-pulse generator of λ 2.
10. the method for testing of optical network unit according to claim 7, is characterized in that, this optical network unit is an optical gate logos and utensils.
The method of testing of 11. optical network units according to claim 7, is characterized in that, this optical transceiver module has an optical-electrical converter, the signal of telecommunication sent in order to reception control unit, and changes this signal of telecommunication into the light-pulse generator of wavelength into λ 1.
The method of testing of 12. optical network units according to claim 7, it is characterized in that, the light-pulse generator of wavelength to be this light-pulse generator of λ 2 be frequency 1.25GHz, wavelength 1310nm, and the light-pulse generator that wavelength is λ 1 is the light-pulse generator of frequency 2.5GHz, wavelength 1490nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310243937.7A CN103368641B (en) | 2013-06-19 | 2013-06-19 | The testing equipment of optical network unit and method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310243937.7A CN103368641B (en) | 2013-06-19 | 2013-06-19 | The testing equipment of optical network unit and method of testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103368641A CN103368641A (en) | 2013-10-23 |
| CN103368641B true CN103368641B (en) | 2016-03-02 |
Family
ID=49369270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310243937.7A Active CN103368641B (en) | 2013-06-19 | 2013-06-19 | The testing equipment of optical network unit and method of testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103368641B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200845612A (en) * | 2007-05-07 | 2008-11-16 | Inventec Multimedia & Telecom | Apparatus and method for ONU error detection based on a PON system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8442398B2 (en) * | 2008-10-21 | 2013-05-14 | Broadcom Corporation | Performance monitoring in passive optical networks |
| CN202696605U (en) * | 2012-04-27 | 2013-01-23 | 中兴通讯股份有限公司 | PON light module detecting device |
| CN102832994A (en) * | 2012-08-10 | 2012-12-19 | 江苏奥雷光电有限公司 | Burst testing device and method in production of optical module |
| CN103023562B (en) * | 2012-12-28 | 2015-09-30 | 武汉电信器件有限公司 | A kind of test macro of simplex optical module and method of testing |
| CN103188014A (en) * | 2013-04-12 | 2013-07-03 | 深圳市共进电子股份有限公司 | PON (passive optical network) ONU (optical network unit) BOB (BOSA-on-board) product with test loop |
-
2013
- 2013-06-19 CN CN201310243937.7A patent/CN103368641B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200845612A (en) * | 2007-05-07 | 2008-11-16 | Inventec Multimedia & Telecom | Apparatus and method for ONU error detection based on a PON system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103368641A (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8306419B2 (en) | Techniques for controlling a light source in a wavelength division multiplexed passive optical network | |
| CN106788704B (en) | The measuring system and method for less fundamental mode optical fibre intermode delay based on synchronizing sequence | |
| US10819424B2 (en) | Apparatus and method for monitoring optical links | |
| CN102725978A (en) | Improvements in optical networks | |
| US8989592B2 (en) | Optical fiber transmission system | |
| US9485026B2 (en) | Scheme for remote control of the wavelength of a tunable transmitter in a smart transceiver | |
| US9755401B2 (en) | Laser, laser modulation method and laser combination system | |
| CN103229440A (en) | Passive wavelength division multiplexing device for automatic wavelength locking and system thereof | |
| US11316589B2 (en) | Optical transceiver and method of automatically setting wavelength thereof | |
| CN106253994B (en) | A kind of compensation method and compensation device of wave length shift | |
| US20150139639A1 (en) | Scheme of remote control of the slicing level of a receiver in a smart transceiver | |
| CN104243018B (en) | A kind of chromatic dispersion measurement system | |
| US7489868B2 (en) | Apparatus for measuring optical beat interference noise in subcarrier multiple access optical network | |
| Ma et al. | Demonstration of digital fronthaul over self-seeded WDM-PON in commercial LTE environment | |
| CN109412685B (en) | Semiconductor detector chip detection method | |
| Pachnicke et al. | Field demonstration of a tunable WDM-PON system with novel SFP+ modules and centralized wavelength control | |
| EP3114778B1 (en) | Transevier and method for monitoring of scm transmission on fibre cable | |
| US8923353B2 (en) | Laser driver modulation and bias control scheme | |
| CN105959058A (en) | Device and method for rapidly detecting time division multiplexing optical network link fault | |
| CN103368641B (en) | The testing equipment of optical network unit and method of testing | |
| CN105763282B (en) | A kind of wavelength control method and its device of adjustable ONU in PON system | |
| SE0850057A1 (en) | Communication system comprising a tunable laser. | |
| CN104518831A (en) | Optical component and method supporting coexistence of two passive optical networks | |
| CN102742184A (en) | Optical fiber link detection method, optical line terminal and passive optical network system | |
| CN113418682B (en) | Laser chirp performance testing device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Suzhou City, Jiangsu province 215021 Industrial Park Tang Zhuang Road No. 8 Applicant after: ZHONGLEI ELECTRONIC (SUZHOU) CO., LTD. Applicant after: SerComm Corporation Address before: Suzhou City, Jiangsu province 215021 Industrial Park Tang Zhuang Road No. 8 Applicant before: Zhongyi (Suzhou) Technology Co., Ltd. Applicant before: SerComm Corporation |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SERNET (SUZHOU) TECHNOLOGIES CORPORATION TO: ZHONGLEI ELECTRONICS (SUZHOU) CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |